# tblAge

AgeCom:
Data downloaded from AGSO Oracle database


# tblAlterationType

AlterationTypeDesc:
Chemical +/- mineralogical change in wallrock or vein as a result of hydrothermal alteration


AlterationTypeDesc:
Key mins. topaz-musc.  Localised high-T alteration associated with peraluminous granites and related mineralisation.  Syn; Fluorine metasomatism


AlterationTypeDesc:
Key mins. chl, epi, alb, cc~wair.  Commonly forms the outermost alteration zone at intermediate to deep levels in porphyry sys. or in epithermal environment.  Syn; zeolitic


AlterationTypeDesc:
Key min. orthoclase.  Wallrock alteration of plagioclase around veins, fractures and permeable zones AND selective replacement of plagioclase  in alteration envelopes.


AlterationTypeDesc:
Key min. tour. Pervasive replacement of footwall strata below massive sulphide.  Assoc. w abundant dissem. sulphide in shallow footwall. Ltd to feldspathic strata


AlterationTypeDesc:
Key min. qz.  Complete replacement of lmst and occassionally other rock types, by fine grnd qtz; often assoc. w brecciation.


AlterationTypeDesc:
Key mins. biot (phlogopite), feld, mag. Form of wall rock alteration char. by  formation of potash feldspar and/or biotite (biotitisation) and anhydrite.  Gen. found in the core of porphyry deposits, partic. those hosted by mafic intrusives or wallrx


AlterationTypeDesc:
Key mins. alb, chl, mus.  Metasomatic replacement of an existing min. (usually fspar) by albite. Characterised by pervasive replacement of feldspathic strata and massive sulphide, typically along structures and around mafic intrusions.


AlterationTypeDesc:
Char. by progressive alteration of wall rock from sericite to mixed layer clays; occurs as texturally destructive clay-rich wallrock alteration around veins and replacement zones in permeable lithologies.


AlterationTypeDesc:
Key mins. alun~kaol-dick~qz~pyro~cris. Intense clay alteration in upper part of porphyry systems & alteration halos in epithermal setting.  Low-mid pH/shallow to deep crustal envir. Syn; acid sulphate (in intrusion-related setting)


AlterationTypeDesc:
An irregularly-shaped, replacement ore deposit, usu. formed at high temps in metamorphosed, carbonate-rich seds. at the contacts w med.-large ore bodies.


AlterationTypeDesc:
Key mins. gnt, cpx, woll.  Generally forms replacement zones in wallrx (exoskarn - typ. in lmst. or occassionally mafic to intermediate vol. rx.) or within intrusives (endoskarns)


AlterationTypeDesc:
Key mins. forst, diop OR serp, talc.  Developed as metasomatic replacements of dolomitic lmst.  High-T Mg-skarns are characterised by forst+diop & low-T Mg-skarns contain serp+talc


AlterationTypeDesc:
Key mins. cc, chl.  Commonly replaces earlier skarn alteration but may also affect adjacent wallrock lmst.


AlterationTypeDesc:
Key mins: cc, ank~sid~qz.  Wallrock alteration in and around veins or shear zones, extensive repl. of UM to mafic rx & disseminated in the shallow FW below massive sulphide & baritic facies


AlterationTypeDesc:
Key mins. qtz, cal.  Replacement of ultramafic rx in the shallow parts (low temperature) of geothermal systems.


AlterationTypeDesc:
Key mins. dol, sid.  Occurs as disseminated alteration, commonly over extensive lateral & stratigraphic intervals.  Composition of carbonates may change with distance from ore zones


AlterationTypeDesc:
A type of wallrock alteration involving an increase in quartz or cryptocrystalline silica in the altered rock.


AlterationTypeDesc:
Typically occurs in structural zones or as replacement bodies in permeable lithologies, usu. in the core of zones of advanced argillic alteration.  Common in upper parts of porphyry systems (telescoped) but more common in epithermal environment


AlterationTypeDesc:
Key mins. qz, cc.  Replacement of ultramafic rx in the shallow parts (low T) of geothermal systems


AlterationTypeDesc:
The alteration of ultramafic rx such as dunite, perioditite and pyroxenite into serpentinite


AlterationTypeDesc:
Key mins. ser, qz. Pervasive replacement of rocks in footwall below massive sulphide lenses; concentrated in stockwork feeder zones, common in intermediate to felsic volcanics


AlterationTypeDesc:
Temporary group for different classes of seicitic alteration

AlterationTypeCom:
'sericitic' captured for lots mines as @ 9/8/01


AlterationTypeDesc:
Key mins. ill-smec~kaol-dick~mont~chl. May be present as alteration zone bw. advanced argillic & propylitic alteration particularly in high sulphidation epithermal settings and porphyry systems. Mid pH/shallow to mid crustal environment. Syn; ser-chl-clay


AlterationTypeDesc:
Key min. chl. Wall rock alteration in and around veins & shear zones, particularly in mafic volcanic/volcaniclastic sed. rx. & pervasive replacement of rocks in footwall  below massive sulphide deposits


AlterationTypeDesc:
Key mins. ser, qtz, pyr.  Wide spread.  Most commonly associated with sulphide ore. Forms peripheral halo around porphyry deposits.  Mid-high pH/mid to deep crustal environment. Syn: sericitic


AlterationTypeDesc:
Key mins. biot, K-spar (orthoclase), mag.  Generally found in the core of porphyry deposits, particularly those hosted by more mafic intrusions (diorite, monzonite, granodiorite) or mafic to intermediate volcanoclastic wallrocks.


AlterationTypeDesc:
Key mins. K-spar (orthoclase or microcline).  Found in the core of porphyry systems, particularly hosted by felsic intrusions (granodiorite-qtz monzonite, granite, syenite)


AlterationTypeDesc:
felpdsar alteration leading to formation of zoisites and other minerals


AlterationTypeDesc:
A 'rust-like' hydrated oxide of iron produced by the weathering of iron minerals


AlterationTypeDesc:
Introduction of,or replacement by pyrite.  A common process of hydrothermal alteration


# tbldcZone

dcZoneCom:
Multiple similar zones within encompassing volume


# tblDepositClass

DepositClassCom:
Copper- and zinc-bearing massive sulfide deposits in marine volcanic rocks of intermediate to felsic composition. Deposits of all ages are included in the model. Model 28a


DepositClassCom:
Very fine grained gold, pyrite and As-Sb sulfides disseminated in carbonaceous calcareous and siliceous sedimentary rocks and associated jasperoids. Model 26a


DepositTypeLU:
Deposits in older clastic sedimentary rocks

DepositClass:
Deposits in older clastic sedimentary rocks


DepositClassCom:
Gold, electrum, silver sulfosalts, and argentite in vuggy quartz-adularia veins hosted by felsic to intermediate volcanic rocks that overlie predominantly clastic sedimentary rocks, and their metamorphic equivalents. Model 25c


DepositClassCom:
Gold, pyrite, and enargite in vuggy veins and breccias in zones of high-alumina alteration related to felsic volcanism. Model 25e


DepositClassCom:
Fine-grained silica and quartz in silicified breccia with gold, pyrite, and Sb and As sulfides. Model 25a


DepositClassCom:
Gold, chalcopyrite, sulfosalts, and argentite in vuggy veins hosted by felsic to intermediate volcanic rocks that overlie older volcanic sequences or igneous intrusions. Model 25d


DepositClassCom:
Thin, sheetlike bodies of massive to well-laminated pyrite, pyrrhotite, and chalcopyrite within thinly laminated clastic sediments associated with basalt flows and tuffs. Model 24b


DepositClassCom:
Stratabound lenses of massive pyrite, chalcopyrite, and sphalerite in pillow basalts of ophiolite assemblages. Model 24a


DepositTypeLU:
Other felsic and mafic rocks including alkalic

DepositClass:
Other felsic and mafic rocks including alkalic


DepositClassCom:
Generalized model includes various subtypes, all of which contain chalcopyrite in stockwork veinlets in hydrothermally altered porphyry and adjacent country rock. Model 17


DepositClassCom:
Hydrothermal, epigenetic, Ag, Pb, Zn, Cu minerals in massive lenses, pipes, and veins in limestone, dolomite, or other soluble rock near igneous intrusive contacts. Model 19a


DepositClassCom:
Chalcopyrite in calc-silicate metasomatic rocks near contacts with weakly mineralized igneous intrusives. Model 18b


DepositClassCom:
Chalcopyrite in stockwork veinlets in hydrothermally altered and mineralized porphyry, and in calc-silicate contact metasomatic rocks with extensive retrograde alteration. Model  18a


DepositClassCom:
Sphalerite and galena in calc-silicate rocks near igneous intrusive contacts. Model  18c


DepositClassCom:
Stockwork veinlets of chalcopyrite, bornite, and magnetite in porphyritic intrusions and coeval volcanic rocks.  Ratio of Au (ppm) to Mo (percent) is greater than 30. Model  20c


DepositTypeLU:
Wallrocks are older igneous and sedimentary rocks

DepositClass:
Wallrocks are older igneous and sedimentary rocks


DepositClassCom:
Stockwork veinlets of quartz, chalcopyrite, and molybdenite in or near a porphyritic intrusion.  Ratio of Au (in ppm) to Mo (in percent) less than 3. Model 21a


DepositClassCom:
Veins or breccias associated with alkalic igneous rocks and containing gold ± gold tellurides ± vanadian micas. Model 22b


DepositTypeLU:
Synorogenic intrusions in non-volcanic terrane

DepositClass:
Synorogenic intrusions in non-volcanic terrane


DepositTypeLU:
Greenstone belt in which lowermost rocks of sequence contain ultramafic rocks

DepositClass:
Greenstone belt in which lowermost rocks of sequence contain ultramafic rocks


DepositTypeLU:
Derived mainly from eugeosynclinal rocks

DepositClass:
Derived mainly from eugeosynclinal rocks


DepositClassCom:
Gold in massive persistent quartz veins mainly in shear zones in regionally metamorphosed Archean and Proterozoic volcanic rocks and volcanic sediments. Model 36b


DepositClassCom:
Gold in massive persistent quartz veins mainly in shear zones in regionally metamorphosed volcanic rocks and volcanic sediments. Model 36a


DepositTypeLU:
Derived mainly from pelitic and other sedimentary rocks

DepositClass:
Derived mainly from pelitic and other sedimentary rocks


DepositClassCom:
Stratabound to stratiform galena and sphalerite in multiple, thin, sheetlike ore bodies in arenaceous sedimentary rocks. Model 30a


DepositClassCom:
Stratabound, disseminated copper sulfides in reduced beds of red-bed sequences. Model 30b


DepositClassCom:
Stratiform basinal accumulations of sulfides and barite interbedded with euxinic marine sediments form sheet- or lens-like ore bodies tens of meters thick, distributed through a stratigraphic interval of more than 1,000 m. Model 31a


DepositClassCom:
Stratabound deposits of sphalerite and minor galena in primary and secondary voids in favorable beds or horizons in thick platform dolostone and limestone. Model 32b


DepositClassCom:
Stratabound, carbonate-hosted deposits of galena, sphalerite, and chalcopyrite in rocks having primary and secondary porosity, commonly related to reefs on paleotopographic highs. Model 32a


# tblForm

FormDesc:
5 - 50km in breadth, with circular outcrop

FormCom:
5 - 50km in breadth, with circular outcrop


FormDesc:
circular, surface area less than 100km sq

FormCom:
circular, surface area less than 100km sq


FormDesc:
A collection of veins with no distinguishing feature other than that they occur together

FormCom:
A collection of veins with no distinguishing feature other than that they occur together


FormDesc:
A zone defined by the appearance of certain features within it

FormCom:
A zone defined by the appearance of certain features within it


FormDesc:
Zones defined by the appearance of certain features within them

FormCom:
Zones defined by the appearance of certain features within them


FormDesc:
Added to be consistent with USGS 'o-s-filling'

FormCom:
Added to be consistent with USGS 'o-s-filling'


# tblFormQualifier

FormQualifierCom:
BCGS: Same dimension in all directions; spheroidal to tetrahedral


FormQualifierCom:
BCGS: One long, one medium,one short dimension


# tblRock

RockLU:
metamorphic rocks and metasediments (hierarchy)


RockLU:
metasediment and metasedimentary rock (hierarchy)


RockLU:
metasedimentary-rock rich in organic matter

Rock:
metasedimentary-rock rich in organic matter


RockLU:
metamorphic carbonate sediments and meta-carbonate

Rock:
metamorphic carbonate sediments and metamorphic ca


Rock:
meta dolomite-sediments, dolostones and magnesites


RockLU:
metamorphic lime sediments and limestones (hierarc

Rock:
metamorphic lime sediments and limestones


RockLU:
metahybrid sediments and metahybrid sedimentary ro

Rock:
metahybrid sediments and metahybrid sedimentary ro


RockLU:
metamorphic sedimentary rock with a sedimentary pr

Rock:
metamorphic rock with a sedimentary protolith


RockLU:
metamorphic sedimentary rock based on modal compos

Rock:
metamorphic sedimentary rock based on modal compos


RockLU:
metamorphic sedimentary rock based on protolith na

Rock:
metamorphic sedimentary rock based on protolith na


RockLU:
metamorphic sedimentary rocks based on textural at

Rock:
metamorphic sedimentary rock based on textural att


RockLU:
metamorphic rock with volcaniclastic protolith (hi

Rock:
metamorphic rock with volcaniclastic protolith


RockLU:
metamorphic rocks with a igneous protolith (hierar

Rock:
metamorphic rocks with a igneous protolith


RockLU:
metamorphic rocks with igneous protolith based on

Rock:
metamorphic rocks with igneous protolith based on


Rock:
metamorphic rocks with a igneous protolith based o


RockLU:
metafragmental igneous rock and metafragmental ign

Rock:
metafragmental igneous rock and metafragmental ign


RockLU:
metavolcaniclastic igneous rock and metavolcanicla

Rock:
metavolcaniclastic igneous rock and metavolcanicla


RockLU:
metapyroclastic rocks and metapyroclastic sediment

Rock:
metapyroclastic rocks and metapyroclastic sediment


RockLU:
metavolcaniclastic sedimentary rock and metavolcan

Rock:
metavolcaniclastic sedimentry rock and metavolcani


RockLU:
metatuffaceous sediments and metatuffaceous sedime

Rock:
metatuffaceous sediments and metatuffaceous sedime


RockLU:
mechanically broken and reconstituted rock (metamo

Rock:
mechanically broken and reconstituted rock (metamo


RockLU:
foliated rocks with primary cohesion (metamorphic)

Rock:
foliated rocks with primary cohesion (metamorphic)


RockLU:
metamorphic rocks without primary cohesion (hierar

Rock:
metamorphic rocks without primary cohesion


RockLU:
unfoliated rocks with primary cohesion (metamorphi

Rock:
unfoliated rocks with primary cohesion (metamorphi


RockLU:
metamorphic rocks with unknown protolith (hierarch

Rock:
metamorphic rocks with unknown protolith


RockLU:
metamorphic rocks with unknown protolith based on

Rock:
metamorphic rocks with unknown protolith based on


RockLU:
metamorphic rocks unknown protolith based on textu

Rock:
metamorphic rocks unknown protolith based on textu


RockLU:
artifical and natural superficial deposit (hierarc

Rock:
artificial and natural superficial deposit


RockLU:
deposits of unknown/unclassified origin (hierarchy


RockLU:
natural superficial deposits (drift, undifferentia

Rock:
natural superficial deposits (drift, undifferentia


RockLU:
fragmental igneous rock and fragmental igneous sed

Rock:
fragmental igneous rock and fragmental igneous sed


RockLU:
volcaniclastic sedimentary rock and volcaniclastic

Rock:
volcaniclastic sedimentary rock and volcaniclastic


RockLU:
pyroclastic rocks and pyroclastic sediments (hiera

Rock:
pyroclastic rocks and pyroclastic sediments


RockLU:
sediment and sedimentary rock (hierarchy)


RockLU:
hybrid sediments and hybrid sedimentary rocks (hie

Rock:
hybrid sediments and hybrid sedimentary rocks


RockLU:
phosphatic sediments and phosphorites (hierarchy)


RockLU:
sedimentary rocks and sediments composed of non-ca

Rock:
sedimentary rocks and sediments composed of non-ca


RockLU:
siliciclastic sediments and sedimentary rocks (hie

Rock:
siliciclastic sediments and sedimentary rocks


RockLU:
siliciclastic rudaceous sediments and rudaceous se

Rock:
siliciclastic rudaceous sediments and siliclastic


RockLU:
siliciclastic arenaceous sediments and arenaceous

Rock:
siliciclastic arenaceous sediments and siliclastic


RockLU:
siliciclastic argillaceous sediments and argillace

Rock:
siliciclastic argillaceous sediments and silicicla


RockLU:
sediment and sedimentry rock (undifferentiated)(hi

Rock:
sediment and sedimentry rock (undifferentiated)


RockLU:
carbonate sediments and carbonate sedimentary rock

Rock:
carbonate sediments and carbonate sedimentary rock


RockLU:
lime sediments and limestones (hierarchy)


RockLU:
na/mg carbonate sedimentary rocks (hierarchy)


RockLU:
dolomite-sediments, dolostones and magnesites (hie


RockLU:
misc-hydroxide, oxide & silicate sediments and sed

Rock:
misc-hydroxide, oxide & silicate sediments and mis


RockLU:
hydroxides and oxides of iron and alumina (hierarc

Rock:
hydroxides and oxides of iron and alumina


RockLU:
non-clastic siliceous sediments and sedimentary ro

Rock:
non-clastic siliceous sediments and non-clastic si


RockLU:
sediments and sedimentary rocks rich in organic ma

Rock:
sediments and sedimentary rocks rich in organic ma


# tblRockSuite

RockSuiteCom:
The rocks contain (a) modal foids and /or alkali amphiboles or pyroxenes (b) normative foids or acmite


RockSuiteCom:
, Basic to acid igneous rocks containing groundmass augite, hypersthene, (basalt and andesites) or hornblende or biotite (dacite, rhyolite), little or no iron enrichment on an AMF diagram.


RockSuiteCom:
Alpine-type peridotites gabbro dolerite, spilites keratophyres Defines basic to ultrabasic rocks representing the ocean crust. Hartzburgite dunite lherzolite wherlite pyroxenite leuco-gabbro trondjemite dolerite peridotite. Sed/chem chert+mudstone.


RockSuiteCom:
An iron enriched suite on the AMF diagram, includes basalt oversaturated in silica with hypersthene and pigeonite amongst modal pyroxene. With or without olivine.


RockSuiteCom:
Dark olivine bearing andesite, porphyritic volcanics with plagioclase (labradorite-oligoclase), pyroxene, hornblende and/or biotite. QAPF diagram fields 9 and 10.


RockSuiteCom:
Basalts of tholeiitic, calc-alkaline and alkaline association Al2O3 + 16% usually with phenocrysts of plagioclase.


RockSuiteCom:
No good defn.  K-trachybasalt is the potassium = of hawaiite TAS field S1. K2O & MgO both +3% & K2O=2Na2O.Also Hi-K andesites with K2O > 2.5% & now all volcanic rocks:basalts,andesites, trachytes plotting above a line SiO2 to K2O on Peccerillo 1976 dgrm)


RockSuiteCom:
Absarokite trachyandesite with phenocrysts of olivine and augite and banakite with less olivine and augite and more sanidine. (orthoclase bearing basalt).


RockSuiteCom:
Molar Na2O + K2O exceeds Al2O3 with acmite + sometimes sodium-metasilicate in CIPW norm usually alkali pyroxene and/or alkaline amphiboles in mode


RockSuiteCom:
Deep-seated, dominantly dioritic rocks with coarse-grained-euhedral hornblende, poikilitic 
feldspar, includes meladiorites, gabbros,hornblendites + pyroxenites with abundant hydrous mafic minerals + granodioritic, monzonitic, syenitic + lamprophyres


RockSuiteCom:
Several basalts in the TAS diagram no normative nepheline. Rocks not alkali in character, TAS field B accessory foids, Ti-augite + olivine (normative nepheline). (Two of these don't seem to me to agree).


# tblRockTexture

RockTextureCom:
MOst definitions from the BGS Rock Classification system, but also from the Geological Society of London handbooks


RockTextureCom:
Having holes occupied by late-stage or post-magmatic minerals

RockTextureDesc:
Having holes occupied by late-stage or post-magmatic minerals

RockTextureRef:
BGS Research Report # RR 99-06 V1 Sec. 7.2.6


RockTextureCom:
Having round, ovoid or elongate irregular holes formed by gas expansion (bubbles)

RockTextureDesc:
Having round, ovoid or elongate irregular holes formed by gas expansion (bubbles)


RockTextureCom:
Having spheres consisting of concentric shells with hollow interspaces

RockTextureDesc:
Having spheres consisting of concentric shells with hollow interspaces


RockTextureCom:
Irregular shaped cavities (druses) in plutonic rx  into which euhedral crystals of the rock project

RockTextureDesc:
Irregular shaped cavities (druses) in plutonic rx  into which euhedral crystals of the rock project


RockTextureCom:
Degree to which formerly molten rock exhibits crystal development

RockTextureDesc:
Degree to which formerly molten rock exhibits crystal development


RockTextureRef:
BGS Research Report # RR 99-06 Sec. 7.2.2


RockTextureCom:
Interlocking arrangment of crystals arising from simultaneous crystallisation or exsolution

RockTextureDesc:
Interlocking arrangment of crystals arising from simultaneous crystallisation or exsolution


RockTextureCom:
Regular intergrowth of two minerals giving a cuniform or runic appearance

RockTextureDesc:
Regular intergrowth of two minerals giving a cuniform or runic appearance

RockTextureRef:
BGS Research Report # RR 99-06 V1 Sec. 7.2.4


RockTextureCom:
Variety of (micro)graphic intergrowth of qtz and alk feldspar crudely radiate and less regular

RockTextureDesc:
Variety of (micro)graphic intergrowth of qtz and alk feldspar crudely radiate and less regular


RockTextureCom:
Intergrowth of vermicular quartz and plagioclase feldspar

RockTextureDesc:
Intergrowth of vermicular quartz and plagioclase feldspar


RockTextureCom:
Textures/fabrics formed during partial to total rextallisation of rock under elevated P/T conditions

RockTextureDesc:
Textures/fabrics formed during partial to total rextallisation of rock under elevated P/T conditions


RockTextureCom:
Megascopically composite rock consist of meta-country & aplitic/granitic/pegmatitic (plutonic) parts

RockTextureDesc:
Megascopically composite rock consist of meta-country & aplitic/granitic/pegmatitic (plutonic) parts

RockTextureRef:
BGS Research Report # RR 99-02 V1 Sec. 9.3


RockTextureCom:
Migmatitic rock with  non-leucosome streaks in leucosome

RockTextureDesc:
Migmatitic rock with  non-leucosome streaks in leucosome


RockTextureCom:
Migmatitic rock with neosome and mesosome have a layered structure

RockTextureDesc:
Migmatitic rock with neosome and mesosome have a layered structure


RockTextureCom:
Migmatitic rock with ghost-like relicts of pre-existing rx within largely reconstituted igneous host

RockTextureDesc:
Migmatitic rock with ghost-like relicts of pre-existing rx within largely reconstituted igneous host


RockTextureCom:
Migmatitic rock where the neosome or leucosome forms a network of veins within mesosome

RockTextureDesc:
Migmatitic rock where the neosome or leucosome forms a network of veins within mesosome


RockTextureCom:
Inhomogeneous rock with coarse banding,+15mm and contrasting texture/grain size in adjacent bands

RockTextureDesc:
Inhomogeneous rock with coarse banding,+15mm and contrasting texture/grain size in adjacent bands

RockTextureRef:
BGS Research Report # RR 99-02 V1 Sec. 10.1


RockTextureCom:
Hard, fine-med grnd rx which lack parting planes & have rextallised due to contact metamorphism

RockTextureDesc:
Hard, fine-med grnd rx which lack parting planes & have rextallised due to contact metamorphism


RockTextureCom:
Stratigraphic or metamorphic layers of minerals and fossils >10mm thick and conitiguous

RockTextureCom2:
BHK does not think banded should be included

RockTextureDesc:
Stratigraphic or metamorphic layers of minerals and fossils >10mm thick and conitiguous


RockTextureCom:
Silky or lustrous sheen on foliation surfaces imparted by phyllosilicates (usually white mica)

RockTextureDesc:
Silky or lustrous sheen on foliation surfaces imparted by phyllosilicates (usually white mica)


RockTextureCom:
Planar textural/structural feature, in particular preferred orientation of inequidiamensional mins.

RockTextureDesc:
Planar textural/structural feature, in particular preferred orientation of inequidiamensional mins.


RockTextureCom:
Lineated structures usually due to preferred orientation of prismatic minerals

RockTextureDesc:
Lineated structures usually due to preferred orientation of prismatic minerals


RockTextureCom:
Noncohesive rock comprising mechanically disrupted rock fragments usually >64mm diameter

RockTextureDesc:
Noncohesive rock comprising mechanically disrupted rock fragments usually >64mm diameter

RockTextureRef:
BGS Research Report # RR 99-02 V2 Sec. 7.1


RockTextureCom:
Stong fissility yielding thin plates which are lithologically indistinguishable.  Syn-slaty cleavage

RockTextureDesc:
Stong fissility yielding thin plates which are lithologically indistinguishable.  Syn-slaty cleavage


RockTextureCom:
Large metamorphic crystals in finer-grained groundmass

RockTextureDesc:
Large metamorphic crystals in finer-grained groundmass


RockTextureCom:
Recognisable schistosity (foliation or lineation) which allows rock to be spilt easily along planes

RockTextureDesc:
Recognisable schistosity (foliation or lineation) which allows rock to be spilt easily along planes


RockTextureCom:
Extreme. fine grnd, foliated texture where 10-50% rock composed of dynamically recrystallised matrix

RockTextureDesc:
Extreme. fine grnd, foliated texture where 10-50% rock composed of dynamically recrystallised matrix


RockTextureCom:
Large crystal fragments (as opposed to lithic fragments)  in finer-grained matrix

RockTextureDesc:
Large crystal fragments (as opposed to lithic fragments)  in finer-grained matrix


RockTextureCom:
Rock consists of aggregate of broardly equidiamensional crystals/grains

RockTextureDesc:
Rock consists of aggregate of broardly equidiamensional crystals/grains


RockTextureCom:
Lacking obvious foliation, having granoblastic texture

RockTextureDesc:
Lacking obvious foliation, having granoblastic texture


RockTextureCom:
Lensoid crystals/mineral aggregates common in gneissose rocks where foliation wraps augen structure

RockTextureDesc:
Lensoid crystals/mineral aggregates common in gneissose rocks where foliation wraps augen structure


RockTextureCom:
Cohesive brecciated texture where 50-90% rock composed of comminuted matrix

RockTextureDesc:
Cohesive brecciated texture where 50-90% rock composed of comminuted matrix


RockTextureCom:
Specific variety of brecciated rx where the matrix forms <10% of rock

RockTextureDesc:
Specific variety of brecciated rx where the matrix forms <10% of rock


RockTextureCom:
Intensely foliated phyllosilicate-rich rocks (often associated with ductile shear zones)

RockTextureDesc:
Intensely foliated phyllosilicate-rich rocks (often associated with ductile shear zones)


RockTextureCom:
Minerals having a preferred crystalligraphic orientation

RockTextureDesc:
Minerals having a preferred crystalligraphic orientation


RockTextureCom:
Subparallel arrangement of tabluar or bladed crystals. Syn- trachytic/fluxion-textured

RockTextureDesc:
Subparallel arrangement of tabluar or bladed crystals. Syn- trachytic/fluxion-textured

RockTextureRef:
BGS Research Report # RR 99-06 V1 Sec. 7.2.5


RockTextureCom:
Orbs consisting of concentric shells of rhythmically alternating mineral constitution

RockTextureDesc:
Orbs consisting of concentric shells of rhythmically alternating mineral constitution


RockTextureCom:
Spheroidal bodies of radiating fibrous crystals in a glass or crystal matrix

RockTextureDesc:
Spheroidal bodies of radiating fibrous crystals in a glass or crystal matrix


RockTextureCom:
Sheafs of blade-like skeletal olivine and pyx in finer devitrified aggregate of pyx & chromite

RockTextureDesc:
Sheafs of blade-like skeletal olivine and pyx in finer devitrified aggregate of pyx & chromite


RockTextureCom:
Fan-like arrangement of divergent/branching fibres

RockTextureDesc:
Fan-like arrangement of divergent/branching fibres


RockTextureCom:
Textures in volcanoclastic fragments that have formed as direct result of volcanic activity

RockTextureDesc:
Textures in volcanoclastic fragments that have formed as direct result of volcanic activity

RockTextureRef:
BGS Research Report # RR 99-06 V1 Sec. 4.1


RockTextureCom:
Having a planar foliation formed by welding compaction, with elongation and flattening of fragments

RockTextureDesc:
Having a planar foliation formed by welding compaction, with elongation and flattening of fragments

RockTextureRef:
BGS Research Report # RR 99-06 V1 Sec. 7.2.7


RockTextureCom:
Extreme eutaxitic, having a linear fabric; elongate pumice fragments are termed "fiamme'

RockTextureDesc:
Extreme eutaxitic, having a linear fabric; elongate pumice fragments are termed "fiamme'


RockTextureCom:
Shards have sintered together during compaction or flow

RockTextureDesc:
Shards have sintered together during compaction or flow


RockTextureCom:
Rel. larger xtals (phenocrysts) embedded in finer ground mass (where mineral not used as qualifier)

RockTextureDesc:
Rel. larger xtals (phenocrysts) embedded in finer ground mass (where mineral not used as qualifier)

RockTextureRef:
BGS Research Report # RR 99-06 V1 Sec.7.2.3


RockTextureRef:
BGS Research Report # RR 99-06 V1 Sec. 7.2.3


RockTextureCom:
Continuous range of sizes of principal minerals

RockTextureDesc:
Continuous range of sizes of principal minerals


RockTextureCom:
Relatively larger crystals (phenocrysts) embedded in a finer ground mass

RockTextureDesc:
Relatively larger crystals (phenocrysts) embedded in a finer ground mass


RockTextureCom:
Textures formed by post-depositional biological, diagenetic and chemical weathering processes

RockTextureDesc:
Textures formed by post-depositional biological, diagenetic and chemical weathering processes


RockTextureRef:
BGS Research Report # RR 99-03 V3 Sec. 13.5.1


RockTextureRef:
BGS Research Report # RR 99-03 V3 Sec. 13.2.7


RockTextureCom:
Seen in unconsolidated, well sorted sands

RockTextureDesc:
Seen in unconsolidated, well sorted sands


RockTextureCom:
Overlap of tabular or disc-shaped pebbles dipping in an upstream direction

RockTextureDesc:
Overlap of tabular or disc-shaped pebbles dipping in an upstream direction


RockTextureCom:
No matrix, very good sorting and well rounded grains

RockTextureDesc:
No matrix, very good sorting and well rounded grains

RockTextureRef:
BGS Research Report # RR 99-0-03 V3 Sec. 13.2.6


RockTextureCom:
Much matrix, poor sorting and angular grains

RockTextureDesc:
Much matrix, poor sorting and angular grains


RockTextureCom:
Thin, surficial, soft, spongy incrustation around mouth of springs carrying calcium carb in soln

RockTextureCom2:
not sure if belongs in texture (genetic?)

RockTextureDesc:
Thin, surficial, soft, spongy incrustation around mouth of springs carrying calcium carb in soln

RockTextureRef:
BGS Research Report # RR 99-03 V3 Sec. 13.6.4


RockTextureCom:
Little matrix, moderate sorting and soubrounded to rounded grains

RockTextureDesc:
Little matrix, moderate sorting and soubrounded to rounded grains


RockTextureCom:
Rock textures associated with movement on brittle and/or ductile faults/shear zones

RockTextureDesc:
Rock textures associated with movement on brittle and/or ductile faults/shear zones


RockTextureCom:
Cohesive, brecciated texture where <50% rock composed of comminuted matrix

RockTextureDesc:
Cohesive, brecciated texture where <50% rock composed of comminuted matrix


RockTextureCom:
Extreme. fine grnd, pervasively foliated texture where >90% rock composed of dyn. rextallised matrix

RockTextureCom2:
Also BSP 2001! need to check Sibson  ref

RockTextureDesc:
Extreme. fine grnd, pervasively foliated texture where >90% rock composed of dyn. rextallised matrix


RockTextureCom:
Fine grnd, foliated texture where <10% rock composed of dynamically recrystallised matrix

RockTextureDesc:
Fine grnd, foliated texture where <10% rock composed of dynamically recrystallised matrix


RockTextureCom:
Streaked/communited fabric with discrete striated slip surfaces formed during simple shear movement

RockTextureDesc:
Streaked/communited fabric with discrete striated slip surfaces formed during simple shear movement


RockTextureCom:
Relatively coarser grained facies developed in a relatively finer grained rock mass

RockTextureDesc:
Relatively coarser grained facies developed in a relatively finer grained rock mass

RockTextureRef:
BGS Research Report # RR 99-06 V1 Sec. 8.1


RockTextureCom:
Cohesive, brecciated texture where >90% rock composed of comminuted matrix

RockTextureDesc:
Cohesive, brecciated texture where >90% rock composed of comminuted matrix


RockTextureCom:
Noncohesive w <30% mechanically disrupted fragment within fine grnd (largely) clay matrix

RockTextureDesc:
Noncohesive w <30% mechanically disrupted fragment within fine grnd (largely) clay matrix


RockTextureCom:
Minerals w preferred xtallographic orientation formed during eq movement subparallel to slip vector

RockTextureDesc:
Minerals w preferred xtallographic orientation formed during eq movement subparallel to slip vector


RockTextureCom:
Regular intergrowth of two minerals giving a cuniform or runic appearance at microscopic scale

RockTextureDesc:
Regular intergrowth of two minerals giving a cuniform or runic appearance at microscopic scale


RockTextureCom:
Small crystals irregularly included within a larger xtal of another mineral

RockTextureDesc:
Small crystals irregularly included within a larger xtal of another mineral


RockTextureCom:
Intergrowth of alkali feldspar and plag where A>P

RockTextureDesc:
Intergrowth of alkali feldspar and plag where A>P

RockTextureRef:
BGS Research Report # RR 99-06 V1 Sec. 5.1.5.1


RockTextureCom:
Melanocratic & greasy texture. Composed of (largely) qtz and fspar xtals + opx/fayalite present.

RockTextureDesc:
Melanocratic & greasy texture. Composed of (largely) qtz and fspar xtals + opx/fayalite present.

RockTextureRef:
BGS Research Report # RR 99-06 V1 Sec. 5.1.5


RockTextureCom:
Intergrowth of alkali feldspar and plag where  A =  P (usu plag component oligocene/andesine)

RockTextureDesc:
Intergrowth of alkali feldspar and plag where  A =  P (usu plag component oligocene/andesine)


RockTextureCom:
Intergrowth of alkali feldspar and plag where A<P (albite<andesine)

RockTextureDesc:
Intergrowth of alkali feldspar and plag where A<P (albite<andesine)


RockTextureCom:
Sedimentary rocks composed entirely of contiguous crystals and clarified by size

RockTextureDesc:
Sedimentary rocks composed entirely of contiguous crystals and clarified by size

RockTextureRef:
BGS Research Report # RR 99-03 V3 Sec. 13.2.2


RockTextureCom:
Persistant tabular succession of differing components (mineralogy/texture/structure)

RockTextureDesc:
Persistant tabular succession of differing components (mineralogy/texture/structure)


RockTextureCom:
Discrete isolated trace fossils, up to 10% of original bedidng disturbed

RockTextureDesc:
Discrete isolated trace fossils, up to 10% of original bedidng disturbed


RockTextureCom:
Trace fossils generally isolated but locally overlap; 10-40% of original bedding disturbed

RockTextureDesc:
Trace fossils generally isolated but locally overlap; 10-40% of original bedding disturbed


RockTextureCom:
Burrows overlap & often ill-defined, last vestiges of bedding discernable with 40-60% disturbed

RockTextureDesc:
Burrows overlap & often ill-defined, last vestiges of bedding discernable with 40-60% disturbed


RockTextureCom:
Trace fossils still discrete in places, fabric not mixed, bedding completely disturbed

RockTextureDesc:
Trace fossils still discrete in places, fabric not mixed, bedding completely disturbed


RockTextureCom:
Degree of particle size sorting based on statistical spread of particle size frequency (IGSD)

RockTextureCom2:
IGSD=Inclusive Graphic Std Deviation Folk 1974

RockTextureDesc:
Degree of particle size sorting based on statistical spread of particle size frequency (IGSD)

RockTextureRef:
BGS Research Report # RR 99-0-03 V3 Sec. 13.2.4


RockTextureCom:
Degree of textural maturity in a depositional environment

RockTextureDesc:
Degree of textural maturity in a depositional environment


RockTextureCom:
Nature of fabric; includes degree of packing /ratio of clasts to matrix/imbrication

RockTextureDesc:
Nature of fabric; includes degree of packing /ratio of clasts to matrix/imbrication


RockTextureCom:
Arenaceous or rudaceous grade clasts floating in a matrix

RockTextureDesc:
Arenaceous or rudaceous grade clasts floating in a matrix


RockTextureCom:
Arenaceous or rudaceous grade clasts in contact with little or no matrix

RockTextureDesc:
Arenaceous or rudaceous grade clasts in contact with little or no matrix


RockTextureCom:
Depositional layering of sedimentary rocks

RockTextureDesc:
Depositional layering of sedimentary rocks


RockTextureCom2:
Modified from Ingram 1954 and Potter et al. 1980


RockTextureCom:
Distribution of minerals, grains or rocks at a macroscopic scale

RockTextureDesc:
Distribution of minerals, grains or rocks at a macroscopic scale


RockTextureCom:
The breaking along planes of weakness in minerals; eg: cleavage planes

RockTextureDesc:
The breaking along planes of weakness in minerals; eg: cleavage planes


RockTextureCom:
Cm- to metric-scale layer of sedimentary rock bound by discrete surfaces

RockTextureDesc:
Cm- to metric-scale layer of sedimentary rock bound by discrete surfaces


RockTextureCom:
Millimetre-scale layer of sedimentary rock bound by discrete surfaces

RockTextureDesc:
Millimetre-scale layer of sedimentary rock bound by discrete surfaces


RockTextureRef:
BGS Research Report # RR 99-03 V3 Sec. 13.5.2


RockTextureCom2:
ref Powers 1953/Tucker 1991/ Pettijohn et al. 1987


RockTextureCom:
Minerals, lithic fragments or fossils are relatively evenly distributed throughout the rock

RockTextureDesc:
Minerals, lithic fragments or fossils are relatively evenly distributed throughout the rock


RockTextureCom:
Minerals, grains or fossils form isolated quasi-spherical clumps

RockTextureDesc:
Minerals, grains or fossils form isolated quasi-spherical clumps


RockTextureCom:
Comprises mineral grains of one size; normally one type of micro-organism fossil in limestones

RockTextureDesc:
Comprises mineral grains of one size; normally one type of micro-organism fossil in limestones


RockTextureCom:
Degree of hardening due to cementation and/or intergranular solution

RockTextureDesc:
Degree of hardening due to cementation and/or intergranular solution


RockTextureRef:
BGS Research Report # RR 99-03 V3 Sec. 13.2.8


RockTextureCom:
A very hard rock resistant to breakage due to cement or intergranular solution

RockTextureDesc:
A very hard rock resistant to breakage due to cement or intergranular solution


RockTextureCom:
Rock/bedded unit which has an internally consistent texture and composition

RockTextureDesc:
Rock/bedded unit which has an internally consistent texture and composition


RockTextureCom:
Minerals, rock units or fossils which are irregularly distributed through host rock

RockTextureDesc:
Minerals, rock units or fossils which are irregularly distributed through host rock


RockTextureCom:
Coated grains and clasts common to carbonates, phosphorites & iron-rich sediments

RockTextureDesc:
Coated grains and clasts common to carbonates, phosphorites & iron-rich sediments

RockTextureRef:
BGS Research Report # RR 99-03 V3 Sec. 13.3.5


RockTextureCom:
Rounded, internally structureless, microcrystalline carbonate grain 0.1 to 0.5mm, Syn: pellet

RockTextureDesc:
Rounded, internally structureless, microcrystalline carbonate grain 0.1 to 0.5mm, Syn: pellet


RockTextureCom:
+2mm irregular grns w cortex of overlapping laminae, biogenic structures, may lack distinct nucleus

RockTextureDesc:
+2mm irregular grns w cortex of overlapping laminae, biogenic structures, may lack distinct nucleus


RockTextureCom:
Spheroidal coated grn w smooth & evenly laminated cortex, core may have different core comp.

RockTextureDesc:
Spheroidal coated grn w smooth & evenly laminated cortex, core may have different core comp.


RockTextureCom:
Plastically deformed oolith; outer cortical lamallae may be replaced w siderite or phophate mineral

RockTextureDesc:
Plastically deformed oolith; outer cortical lamallae may be replaced w siderite or phophate mineral


RockTextureCom:
Containing fragments of skeletal grains, if the fossil type is identified it should be specified

RockTextureDesc:
Containing fragments of skeletal grains, if the fossil type is identified it should be specified


RockTextureCom:
Containing fragments of weakly consolidated sediment reworked from within area of deposition

RockTextureDesc:
Containing fragments of weakly consolidated sediment reworked from within area of deposition


RockTextureCom:
Fragments of lithologies not represented in the associated environments

RockTextureDesc:
Fragments of lithologies not represented in the associated environments


RockTextureCom:
Degree to which authegenic minerals are ppted into pores of seds, causing them to become lithified

RockTextureDesc:
Degree to which authegenic minerals are ppted into pores of seds, causing them to become lithified


RockTextureCom:
The rock is bound into a rigid dense mass of very low porosity

RockTextureDesc:
The rock is bound into a rigid dense mass of very low porosity

RockTextureRef:
BGS Research Report # RR 99-03 V3 Sec. 13.4


RockTextureCom:
The rock particles are cemented by silica

RockTextureDesc:
The rock particles are cemented by silica


RockTextureCom:
The cement is of unspecified carbonate composition

RockTextureDesc:
The cement is of unspecified carbonate composition


RockTextureCom:
The rock particles are cemented by dolomite

RockTextureDesc:
The rock particles are cemented by dolomite


RockTextureCom:
The rock particles are cemented by siderite

RockTextureDesc:
The rock particles are cemented by siderite


RockTextureCom:
The rock particles are cemented by gypsum

RockTextureDesc:
The rock particles are cemented by gypsum


RockTextureCom:
Hard, dense variety of tufa. Syn: calcareous sinter

RockTextureDesc:
Hard, dense variety of tufa. Syn: calcareous sinter


RockTextureCom:
Diagenetic textural qualifiers specific to limestone

RockTextureDesc:
Diagenetic textural qualifiers specific to limestone

RockTextureRef:
BGS Research Report # RR 99-03 V3 Sec. 3.1.5


RockTextureCom:
Grain stones where pressure solution has caused many grain contacts to consist of styloliltes

RockTextureDesc:
Grain stones where pressure solution has caused many grain contacts to consist of styloliltes


RockTextureCom:
Grain stones where almost all the grain contacts consist of microstylolites

RockTextureDesc:
Grain stones where almost all the grain contacts consist of microstylolites


RockTextureCom2:
BSP thinks some terms relevant in diff. contexts


RockTextureRef:
BGS Research Report # RR 99-0-03 V3 Sec. 7.4


RockTextureCom:
Irregular nodules (usually anhydrite) separated by thin stringers of sediment

RockTextureDesc:
Irregular nodules (usually anhydrite) separated by thin stringers of sediment


RockTextureCom:
bedded non-carbonate salts in which all the beds have been deformed

RockTextureDesc:
bedded non-carbonate salts in which all the beds have been deformed


RockTextureCom:
The original structure of the sediment is no longer recognisable due to deformation

RockTextureDesc:
The original structure of the sediment is no longer recognisable due to deformation


RockTextureCom:
Rock consists of angular fragments of evaporite

RockTextureDesc:
Rock consists of angular fragments of evaporite


RockTextureCom:
Inverted "v" fold at the edge of a large polygon

RockTextureDesc:
Inverted "v" fold at the edge of a large polygon


# tblSetting

SettingDesc:
Wide spread linear rift systems forming accretionary plate boundaries where oceanic lithosphere is produced by extrusion of basaltic magma at the ridge during opening of an ocean basin following supercontinent breakup (Condie)

SettingCom:
Wide spread linear rift systems forming accretionary plate boundaries where oceanic lithosphere is produced by extrusion of basaltic magma at the ridge during opening of an ocean basin following supercontinent breakup (Condie)


SettingDesc:
Tectonically emplaced layered oceanic crust fragment; ideal sequence from the base is ultramafic tectonite, commonly harzburgite; cumulate gabbros+ ultramafics; non-cumulate gabbros diorites + plagiogranites; sheeted diabase dykes; pillow basalts (Condie)

SettingCom:
Tectonically emplaced layered oceanic crust fragment; ideal sequence from the base is ultramafic tectonite, commonly harzburgite; cumulate gabbros+ ultramafics; non-cumulate gabbros diorites + plagiogranites; sheeted diabase dykes; pillow basalts (Condie)


SettingDesc:
Items that appear to be mainly due to the rise of mantle plumes to the base of the crust such as continental flood basalts and volcanic islands (Condie)

SettingCom:
Items that appear to be mainly due to the rise of mantle plumes to the base of the crust such as continental flood basalts and volcanic islands (Condie)


SettingDesc:
Extensive, thick, rapidly erupted low Mg + Fe dominantly tholeiitic basalt successions formed by entrainment + adiabatic melting of lower mantle material + some conductive* the lithosphere by a plume with a >1000 km diameter head (Condie)

SettingCom:
Extensive, thick, rapidly erupted low Mg + Fe dominantly tholeiitic basalt successions formed by entrainment + adiabatic melting of lower mantle material + some conductive* the lithosphere by a plume with a >1000 km diameter head (Condie)


SettingDesc:
Large volcanoes, developed over mantle plumes of dominantly tholeiitic lava erupted from the the sea floor and called seamounts before becoming subaerial when some alkali basalts are erupted (Condie)

SettingCom:
Large volcanoes, developed over mantle plumes of dominantly tholeiitic lava erupted from the the sea floor and called seamounts before becoming subaerial when some alkali basalts are erupted (Condie)


SettingDesc:
Zones to 500km wide and 3000km long containing thousands of tholeiitic dykes to 200m thickand to 1000km long which are intruded laterally and widen sufacewards. Some radiate from a point (Condie)

SettingCom:
Zones to 500km wide and 3000km long containing thousands of tholeiitic dykes to 200m thickand to 1000km long which are intruded laterally and widen sufacewards. Some radiate from a point (Condie)


SettingDesc:
Simple to complex fault-bounded valleys to 70km wide and 1000s kms long in thin crust under tension with high, low order seismisity and immature terrigenous clastic sediments and bimodal volcanics, active rifts have more volcanics (Condie)

SettingCom:
Simple to complex fault-bounded valleys to 70km wide and 1000s kms long in thin crust under tension with high, low order seismisity and immature terrigenous clastic sediments and bimodal volcanics, active rifts have more volcanics (Condie)


SettingDesc:
Volcanic island chains developed on oceanic crust or continental margin volcanic chains developed on continental or transitional crust above active subduction zones idealy  consisting of an arc-trench gap, the arc and the arc-rear area (Condie)

SettingCom:
Volcanic island chains developed on oceanic crust or continental margin volcanic chains developed on continental or transitional crust above active subduction zones idealy  consisting of an arc-trench gap, the arc and the arc-rear area (Condie)


SettingDesc:
Very deep, narrow, extensive, linear, sediment poor structure formed in the ocean floor parallel to arc systems above where a lithospheric slab begins to decend into the mantle and subject to intense seismic activity (Condie)

SettingCom:
Very deep, narrow, extensive, linear, sediment poor structure formed in the ocean floor parallel to arc systems above where a lithospheric slab begins to decend into the mantle and subject to intense seismic activity (Condie)


SettingDesc:
Steeply inclined melanges of sediment and volcanics including slab derived ophiolites as fault-bounded wedges accreted to the arc front above a descending oceanic slab (Condie)

SettingCom:
Steeply inclined melanges of sediment and volcanics including slab derived ophiolites as fault-bounded wedges accreted to the arc front above a descending oceanic slab (Condie)


SettingDesc:
Marine turbitite depositional basins up to 700km long overlying and arc-wards of the accretionary prism and lacking volcanism (Condie)

SettingCom:
Marine turbitite depositional basins up to 700km long overlying and arc-wards of the accretionary prism and lacking volcanism (Condie)


SettingDesc:
Subaerial and submarine volcanic chains erupting tholeiitic and calc-alkaline magmas above a descending oceanic slab (Condie)

SettingCom:
Subaerial and submarine volcanic chains erupting tholeiitic and calc-alkaline magmas above a descending oceanic slab (Condie)


SettingDesc:
Behind arc over descending oceanic slabs, if active have high heat flow and thin often ophiolitic lithosphere and an ocean ridge enlarging the basin dominant sediments proximal (Condie)

SettingCom:
Behind arc over descending oceanic slabs, if active have high heat flow and thin often ophiolitic lithosphere and an ocean ridge enlarging the basin dominant sediments proximal (Condie)


SettingDesc:
Extinct arc portions forming submarine aseismic ridges rifted away by opening of back-arc basins (Condie)

SettingCom:
Extinct arc portions forming submarine aseismic ridges rifted away by opening of back-arc basins (Condie)


SettingDesc:
Continental margin arc-rear basin filled with syntectonic clastic terrigenious sediments from the fold thrust belt which becomes involved with the proximal margin + gives inversestratigraphic sampling as unroofing progresses (Condie)

SettingCom:
Continental margin arc-rear basin filled with syntectonic clastic terrigenious sediments from the fold thrust belt which becomes involved with the proximal margin + gives inversestratigraphic sampling as unroofing progresses (Condie)


SettingDesc:
Events arising from the collision of two or more continents or a continent and an arc (Condie)

SettingCom:
Events arising from the collision of two or more continents or a continent and an arc (Condie)


SettingDesc:
Collision of two or more continental units commonly greatly thickening and partially melting the crust with extensive thrusting, folding, metamorphism and mountain formation (Condie)

SettingCom:
Collision of two or more continental units commonly greatly thickening and partially melting the crust with extensive thrusting, folding, metamorphism and mountain formation (Condie)


SettingDesc:
Area of main thrusting and folding in suture foreland of collision orogen (Condie)

SettingCom:
Area of main thrusting and folding in suture foreland of collision orogen (Condie)


SettingDesc:
Upwarped lithosphere area ahead of by major overthrust belts (Condie)

SettingCom:
Upwarped lithosphere area ahead of by major overthrust belts (Condie)


SettingDesc:
Area elevated 1 to 5km adjacent to the suture zone in the near hinterland of fold thrust belts (Condie)

SettingCom:
Area elevated 1 to 5km adjacent to the suture zone in the near hinterland of fold thrust belts (Condie)


SettingDesc:
Regions away from the main overthrust belts in the direction of and away from the direction of principle orogenic vergence respectively (Condie)

SettingCom:
Regions away from the main overthrust belts in the direction of and away from the direction of principle orogenic vergence respectively (Condie)


SettingDesc:
Local basin formed in foreland area when subduction stops or reverses (Condie)

SettingCom:
Local basin formed in foreland area when subduction stops or reverses (Condie)


SettingDesc:
Collision and suturing of largely juvenile crustal blocks such as ophiolites, island arcs and submarine plateaux with little reworked older crust (Condie)

SettingCom:
Collision and suturing of largely juvenile crustal blocks such as ophiolites, island arcs and submarine plateaux with little reworked older crust (Condie)


SettingDesc:
Subalkalic to peraluminous A-type granite emplaced in an anorogenic tectonic environment, enriched in REE, Zr and Hf, depleted in Sr, P and Ti with incompatable element and oxygen isotope distribution of lower crustal type  Condie

SettingCom:
Subalkalic to peraluminous A-type granite emplaced in an anorogenic tectonic environment, enriched in REE, Zr and Hf, depleted in Sr, P and Ti with incompatable element and oxygen isotope distribution of lower crustal type  Condie


SettingDesc:
Volcanic mainly subaqueous basalt + komatiite-dominated successions formed in arcs, submarine plateaux, volcanic islands + oceanic crust, mainly juvenile oceanic terranes. Post Archean gstns hve less komatiite+more volcaniclastics+adesitic+felsitic vlcncs

SettingCom:
Volcanic mainly subaqueous basalt + komatiite-dominated successions formed in arcs, submarine plateaux, volcanic islands + oceanic crust, mainly juvenile oceanic terranes. Post Archean gstns hve less komatiite+more volcaniclastics+adesitic+felsitic vlcncs


SettingDesc:
effectively "non-tectonic", in same sense as craton; added by CPS to Condie classes

SettingCom:
effectively "non-tectonic", in same sense as craton; added by CPS to Condie classes


SettingDesc:
Rifts within continental crust, commonly associated with bimodal volcanism.

SettingCom:
Rifts within continental crust, commonly associated with bimodal volcanism.


SettingDesc:
Incipient oceanic basins floored by new oceanic crust and flanked by young rifted continental margins

SettingCom:
Incipient oceanic basins floored by new oceanic crust and flanked by young rifted continental margins


SettingDesc:
Mature rifted continental margins in intraplate settings at continental-oceanic interfaces

SettingCom:
Mature rifted continental margins in intraplate settings at continental-oceanic interfaces


SettingDesc:
Progradational sediment wedges constructed off edges of rifted continental margins

SettingCom:
Progradational sediment wedges constructed off edges of rifted continental margins


SettingDesc:
Broad cratonic basins floored by fossil rifts in axial zones

SettingCom:
Broad cratonic basins floored by fossil rifts in axial zones


SettingDesc:
Stable cratons covered with thin and laterally extensive sedimentary strata

SettingCom:
Stable cratons covered with thin and laterally extensive sedimentary strata


SettingDesc:
Basins floored by oceanic crust formed at divergent plate boundaries unrelated to arc-trench systems (spreading still active)

SettingCom:
Basins floored by oceanic crust formed at divergent plate boundaries unrelated to arc-trench systems (spreading still active)


Setting:
oceanic islands, aseismic ridges and plateaux

SettingLU:
oceanic islands, aseismic ridges and plateaux

SettingDesc:
Sedimentary aprons and platforms formed in intraoceanic settings other than magmatic arcs

SettingCom:
Sedimentary aprons and platforms formed in intraoceanic settings other than magmatic arcs


SettingDesc:
Basins floored by oceanic crust, which is neither spreading nor subducting (no acitive plate boundaries within or adjoining basin)

SettingCom:
Basins floored by oceanic crust, which is neither spreading nor subducting (no acitive plate boundaries within or adjoining basin)


SettingDesc:
Deep troughs formed by subduction of oceanic lithosphere

SettingCom:
Deep troughs formed by subduction of oceanic lithosphere


SettingDesc:
Local structural depressions developed on subduction complexes

SettingCom:
Local structural depressions developed on subduction complexes


SettingDesc:
Basins along arc platform, which includes superposed and overlapping volcanoes.

SettingCom:
Basins along arc platform, which includes superposed and overlapping volcanoes.


SettingDesc:
Oceanic basins behind intraoceanic magmatic arcs (inc interarc basins between active and remnant arcs) and cont. basins behind cont. margin magmatic arcs without foreland foldthrust belts

SettingCom:
Oceanic basins behind intraoceanic magmatic arcs (inc interarc basins between active and remnant arcs) and cont. basins behind cont. margin magmatic arcs without foreland foldthrust belts


SettingDesc:
Foreland basins on continental sides of continental-margin arc-trench systems (formed by subduction-generated compression and/or collision).

SettingCom:
Foreland basins on continental sides of continental-margin arc-trench systems (formed by subduction-generated compression and/or collision).


SettingDesc:
Shrinking ocean basins caught between colliding continental margins and/or arc-trench systems, and ultimately subducted or deformed within suture belts.

SettingCom:
Shrinking ocean basins caught between colliding continental margins and/or arc-trench systems, and ultimately subducted or deformed within suture belts.


SettingDesc:
Foreland basins above rifted continental margins that have been pulled into subduction zones during crustal collisions (primary type of collision-related forelands).

SettingCom:
Foreland basins above rifted continental margins that have been pulled into subduction zones during crustal collisions (primary type of collision-related forelands).


SettingDesc:
Basins formed and carried atop moving thrust sheets

SettingCom:
Basins formed and carried atop moving thrust sheets


SettingDesc:
(Brokens forelands) Basins formed among basement-cored uplifts in foreland settings.

SettingCom:
(Brokens forelands) Basins formed among basement-cored uplifts in foreland settings.


SettingDesc:
Basins formed by extension along strike-slip fault systems

SettingCom:
Basins formed by extension along strike-slip fault systems


SettingDesc:
Basins formed by compression along strike-slip systems

SettingCom:
Basins formed by compression along strike-slip systems


SettingDesc:
Basins formed by rotation of crustal blocks about vertical axes within strike-slip fault systems

SettingCom:
Basins formed by rotation of crustal blocks about vertical axes within strike-slip fault systems


SettingDesc:
Diverse basins formed within and on continental crust due to distant collisional processes

SettingCom:
Diverse basins formed within and on continental crust due to distant collisional processes


SettingDesc:
Former failed rifts at high angles to continental margins, wihch ahve been reactivated during convergent tectonics so that they are at high angles to orogenic belts

SettingCom:
Former failed rifts at high angles to continental margins, wihch ahve been reactivated during convergent tectonics so that they are at high angles to orogenic belts


SettingDesc:
Rifts formed at high angles to orogenic belts, without pre-orogenic history

SettingCom:
Rifts formed at high angles to orogenic belts, without pre-orogenic history


SettingDesc:
Basins formed in intermontane settings following cessation of local orogenic or taphrogenic activity

SettingCom:
Basins formed in intermontane settings following cessation of local orogenic or taphrogenic activity


SettingDesc:
5 - 50km in breadth, with circular outcrop

SettingCom:
5 - 50km in breadth, with circular outcrop


SettingDesc:
circular, surface area less than 100km sq

SettingCom:
circular, surface area less than 100km sq


SettingDesc:
Extensive deposits of flat-lying or gently tilted or warped seds (eg: Colorado Plateau)

SettingCom:
Extensive deposits of flat-lying or gently tilted or warped seds (eg: Colorado Plateau)


SettingDesc:
Systems of approx parallel faults with dip-slip displacements of 100s or 1000s of metres (eg: Basin & Range Prov)

SettingCom:
Systems of approx parallel faults with dip-slip displacements of 100s or 1000s of metres (eg: Basin & Range Prov)


SettingDesc:
Major transcurrent faults in continental rocks, typically 100s of km long (eg: Alpine Fault in New Zealand)

SettingCom:
Major transcurrent faults in continental rocks, typically 100s of km long (eg: Alpine Fault in New Zealand)


SettingDesc:
Shallow-deformed rocks above a decollement zone, oft referred to as suprastructure of mtn belts (cf: infrastructure) eg: Canadian Rocky Mtns

SettingCom:
Shallow-deformed rocks above a decollement zone, oft referred to as suprastructure of mtn belts (cf: infrastructure) eg: Canadian Rocky Mtns


SettingDesc:
Environment of juxtaposition of large-scale exotic rock blocks on blocks & matrix of different age or lithology. (eg: Ankara melange: Turkey)

SettingCom:
Environment of juxtaposition of large-scale exotic rock blocks on blocks & matrix of different age or lithology. (eg: Ankara melange: Turkey)


SettingDesc:
Areas of doubly plunging anticlines and synclines (eg: Kettleman Hills, California)

SettingCom:
Areas of doubly plunging anticlines and synclines (eg: Kettleman Hills, California)


SettingDesc:
Regions of diapiric uprise of thick columnar plug-like bodies of halite (eg: Gulf Coast, USA)

SettingCom:
Regions of diapiric uprise of thick columnar plug-like bodies of halite (eg: Gulf Coast, USA)


Setting:
simple fold systems with steeply dipping axial surfaces

SettingLU:
simple fold systems with steeply dipping axial surfaces

SettingDesc:
Areas of regular trains of gently plunging folds of similar size orientation and steeply dipping axial surfaces (eg: Appalachain Fold Belt)

SettingCom:
Areas of regular trains of gently plunging folds of similar size orientation and steeply dipping axial surfaces (eg: Appalachain Fold Belt)


SettingDesc:
Typically narrow zones of slate parallel to orogenic belts (exception: equidimensional slate belt in N Wales)

SettingCom:
Typically narrow zones of slate parallel to orogenic belts (exception: equidimensional slate belt in N Wales)


Setting:
multiply deformed belts of low and medium metamorphism

SettingLU:
multiply deformed belts of low and medium metamorphism

SettingDesc:
As present as parts of virtually all the world's fold-mountain belts.

SettingCom:
As present as parts of virtually all the world's fold-mountain belts.


SettingDesc:
Allochthonous regions of large-scale thrusting with or without recumbant folding  of rocks of essentially horizontal undisturbed material.

SettingCom:
Allochthonous regions of large-scale thrusting with or without recumbant folding  of rocks of essentially horizontal undisturbed material.


SettingDesc:
Regions in which prominent schistosity has a gentle dip over 1000s of sq km (eg: Otago Schist terrain, NZ)

SettingCom:
Regions in which prominent schistosity has a gentle dip over 1000s of sq km (eg: Otago Schist terrain, NZ)


SettingDesc:
Narrow planar regions in which deformation is intense relative to the adjacent rocks

SettingCom:
Narrow planar regions in which deformation is intense relative to the adjacent rocks


SettingDesc:
Core of granitic migmatites/gneisses overlain by a layered metasedimantary & metavolc cover (Eskola 1949: Caledonides of Finland)

SettingCom:
Core of granitic migmatites/gneisses overlain by a layered metasedimantary & metavolc cover (Eskola 1949: Caledonides of Finland)


SettingDesc:
Upper amph and granulite facies rocks of similar geometry to mult def rocks of lower met grade, but with particular problems in understanding because of destroyed structure

SettingCom:
Upper amph and granulite facies rocks of similar geometry to mult def rocks of lower met grade, but with particular problems in understanding because of destroyed structure


SettingDesc:
Wind-driven depositional setting giving rise to ripple/dune/interdune/sheet sand bedforms.  Bedforms rarely preserved in ancient eolian deposits

SettingCom:
Wind-driven depositional setting giving rise to ripple/dune/interdune/sheet sand bedforms.  Bedforms rarely preserved in ancient eolian deposits


SettingDesc:
The water table and its capillary fringe lie at depth below the depositional surface

SettingCom:
The water table and its capillary fringe lie at depth below the depositional surface


SettingDesc:
Vegetation, surface cementation or mud drapes play a significant stabilising role and thus influence the behaviour of the accummulating surface

SettingCom:
Vegetation, surface cementation or mud drapes play a significant stabilising role and thus influence the behaviour of the accummulating surface


SettingDesc:
The water table or its capillary fringe is at or near the depositional surface

SettingCom:
The water table or its capillary fringe is at or near the depositional surface


SettingDesc:
Cone-shaped to arcuate deposits (in plan view)  w. a well dvpled network of distributory channels that cross the fan.  Many have steep depositional slopes

SettingCom:
Cone-shaped to arcuate deposits (in plan view)  w. a well dvpled network of distributory channels that cross the fan.  Many have steep depositional slopes


SettingDesc:
Inner fan: longitudinal gravel bars; Mid-fan: longitudinal gravel bars and transverse bars; Outer fan: transverse bars and dunes

SettingCom:
Inner fan: longitudinal gravel bars; Mid-fan: longitudinal gravel bars and transverse bars; Outer fan: transverse bars and dunes


SettingDesc:
Inner fan: channelized proximal debris flows; Mid-fan: distal debris flows and sheet flows; Outer Fan: sheet flows and shallow braided stream

SettingCom:
Inner fan: channelized proximal debris flows; Mid-fan: distal debris flows and sheet flows; Outer Fan: sheet flows and shallow braided stream


SettingDesc:
Inner fan: active meander belts; Mid-fan: low-sinuousity/anastomosing river w vegetated levees; Outer fan: low sinuousity/ansotmosing river w little channel confinement

SettingCom:
Inner fan: active meander belts; Mid-fan: low-sinuousity/anastomosing river w vegetated levees; Outer fan: low sinuousity/ansotmosing river w little channel confinement


SettingDesc:
Low sinuousity, high gradient streams charactersied by the presence of many channels separated by bars or small islands.  Occur in areas of high relief and have ltd. areal extent.

SettingCom:
Low sinuousity, high gradient streams charactersied by the presence of many channels separated by bars or small islands.  Occur in areas of high relief and have ltd. areal extent.


SettingDesc:
Highly sinuous, low gradient streams with finer sed. load.  Tend to be confined within a single major channel, char. by cohesive banks that are difficult to erode

SettingCom:
Highly sinuous, low gradient streams with finer sed. load.  Tend to be confined within a single major channel, char. by cohesive banks that are difficult to erode


SettingDesc:
Lag deposits composed of coarse material the river can move only at max. stream velocity during flood stage.  Bedding indistinct but imbrication common

SettingCom:
Lag deposits composed of coarse material the river can move only at max. stream velocity during flood stage.  Bedding indistinct but imbrication common


SettingDesc:
Occur on floodplains where rising floodwaters breach natural levees

SettingCom:
Occur on floodplains where rising floodwaters breach natural levees


SettingDesc:
Fine-grained sediments that settle out of suspension from floodwaters carried into the floodbasin.  Broad, low-relief plain/swamp

SettingCom:
Fine-grained sediments that settle out of suspension from floodwaters carried into the floodbasin.  Broad, low-relief plain/swamp


SettingDesc:
Form on the concave or steep-bank side of meander loops immediately adjacent to the channel due to sudden loss of stream competence as they overtop their banks

SettingCom:
Form on the concave or steep-bank side of meander loops immediately adjacent to the channel due to sudden loss of stream competence as they overtop their banks


SettingDesc:
Fine silt and mud introduced into the lakes from the main stream during overbank flooding

SettingCom:
Fine silt and mud introduced into the lakes from the main stream during overbank flooding


SettingDesc:
Areas where more or less permanent accumulations of snow exist; composite depositional setting

SettingCom:
Areas where more or less permanent accumulations of snow exist; composite depositional setting


SettingDesc:
Huge sheets or ice that spread over large continental areas or plateaus

SettingCom:
Huge sheets or ice that spread over large continental areas or plateaus


SettingDesc:
Large masses or sheets of ice formed at the base of a mountain

SettingCom:
Large masses or sheets of ice formed at the base of a mountain


SettingDesc:
Relatively small ice masses  confined to within valley walls of a mountain

SettingCom:
Relatively small ice masses  confined to within valley walls of a mountain


SettingDesc:
Lakes do not have a major outflow, have fluctuating shorelines and occur in regions of interior drainage ; inflow is commonly exceeded by evaporation and infiltration leading to chemical sedimentation

SettingCom:
Lakes do not have a major outflow, have fluctuating shorelines and occur in regions of interior drainage ; inflow is commonly exceeded by evaporation and infiltration leading to chemical sedimentation


SettingDesc:
Fed by ephemeral (intermittent) runoff, springs and groundwater and are generally dry through each part of the year; bedded salt deposits are dominant

SettingCom:
Fed by ephemeral (intermittent) runoff, springs and groundwater and are generally dry through each part of the year; bedded salt deposits are dominant


SettingDesc:
Mostly saline lakes which receive inflow from at least one perennial stream and commonly do not dry up completely from year to year,

SettingCom:
Mostly saline lakes which receive inflow from at least one perennial stream and commonly do not dry up completely from year to year,


SettingDesc:
Lakes have an outflow of water and a relatively stable (fixed) shoreline and in which inflow=precipitation.  Siliciclastic sediment commonly predominates

SettingCom:
Lakes have an outflow of water and a relatively stable (fixed) shoreline and in which inflow=precipitation.  Siliciclastic sediment commonly predominates


SettingDesc:
Narrow zone dominated by river, wave and tidal processes lying along the boundary between the continental and marine depositional realms

SettingCom:
Narrow zone dominated by river, wave and tidal processes lying along the boundary between the continental and marine depositional realms


SettingDesc:
Long, narrow accumulations of sand aligned parallel to the shoreline and attached to land.  High energy environment

SettingCom:
Long, narrow accumulations of sand aligned parallel to the shoreline and attached to land.  High energy environment


SettingDesc:
Shallow stretch of seawater (sound, channel, bay) partly/completely separated from the sea by a low, narrow strip of land commonly extending parallel to the coast. No significant fresh water runoff.

SettingCom:
Shallow stretch of seawater (sound, channel, bay) partly/completely separated from the sea by a low, narrow strip of land commonly extending parallel to the coast. No significant fresh water runoff.


SettingDesc:
Discrete shoreline protuberances formed where rivers enter oceans, semi-enclosed seas, lakes or lagoons and supply sediment more rapidly than it can be redistributed by basinal processes

SettingCom:
Discrete shoreline protuberances formed where rivers enter oceans, semi-enclosed seas, lakes or lagoons and supply sediment more rapidly than it can be redistributed by basinal processes


SettingDesc:
Formed where alluvial fans prograde into standing water

SettingCom:
Formed where alluvial fans prograde into standing water


SettingDesc:
Formed from the deposits of a braided stream system

SettingCom:
Formed from the deposits of a braided stream system


SettingDesc:
Formed from the deposits of a single river

SettingCom:
Formed from the deposits of a single river


SettingDesc:
Formed where scree deposits extend into water

SettingCom:
Formed where scree deposits extend into water


SettingDesc:
Lower courses of rivers open to the sea which receive sediment from both fluvial and marine sources

SettingCom:
Lower courses of rivers open to the sea which receive sediment from both fluvial and marine sources


SettingDesc:
Occur mainly on macrotidal coasts where tidal-current energy exceeds wave energy at the mouth of the estuary

SettingCom:
Occur mainly on macrotidal coasts where tidal-current energy exceeds wave energy at the mouth of the estuary


SettingDesc:
Tidal influence is small, and the mouth of the estuary experiences high wave energy, seds. move alongshore and onshore in the mouth of estuary

SettingCom:
Tidal influence is small, and the mouth of the estuary experiences high wave energy, seds. move alongshore and onshore in the mouth of estuary


SettingDesc:
Sediments deposited where glaciers extend beyond the mouths of river valleys to enter the sea

SettingCom:
Sediments deposited where glaciers extend beyond the mouths of river valleys to enter the sea


SettingDesc:
Coastal supratidal mudflats. Algal mats (stromatolites) commonly form in associated intertidal to supratidal sediments

SettingCom:
Coastal supratidal mudflats. Algal mats (stromatolites) commonly form in associated intertidal to supratidal sediments


SettingDesc:
Marine-fed coastal lagoons and salt pans which occur in depressions on sabkhas, between coastal dunes, on deltas, or in tectonic downwarps behind coastal barriers

SettingCom:
Marine-fed coastal lagoons and salt pans which occur in depressions on sabkhas, between coastal dunes, on deltas, or in tectonic downwarps behind coastal barriers


SettingDesc:
Marshy and muddy to sandy featureless plains dissected by a network of tidal channels and creeks that are largely exposed during low tide

SettingCom:
Marshy and muddy to sandy featureless plains dissected by a network of tidal channels and creeks that are largely exposed during low tide


SettingDesc:
Evaporites accumulated from shallow bodies of brine or within saline mudfalts

SettingCom:
Evaporites accumulated from shallow bodies of brine or within saline mudfalts


SettingDesc:
Encompasses the shallow-water areas of the ocean lying shoreward of the shelf break

SettingCom:
Encompasses the shallow-water areas of the ocean lying shoreward of the shelf break


SettingDesc:
Evaporites formed in vast expanses of evaporitic lagoons and mudflats,over which brine depths are only a few metres

SettingCom:
Evaporites formed in vast expanses of evaporitic lagoons and mudflats,over which brine depths are only a few metres


SettingDesc:
Shelf char. by topographic buildup at the shelf margin of the outer shelf creating a barrier to incoming waves

SettingCom:
Shelf char. by topographic buildup at the shelf margin of the outer shelf creating a barrier to incoming waves


SettingDesc:
Shallow (often broad) seas occupying areas within continents, associated with widespread deposition of carbonate sediments

SettingCom:
Shallow (often broad) seas occupying areas within continents, associated with widespread deposition of carbonate sediments


SettingDesc:
Deposits formed within interiors of isolated carbonate platforms under moderately low-energy, open to restricted subtidal conditions

SettingCom:
Deposits formed within interiors of isolated carbonate platforms under moderately low-energy, open to restricted subtidal conditions


SettingDesc:
Biological buildup of carbonate sediment which affects deposition in adjacent areas and stands topographically higher than surrounding sediments during deposition

SettingCom:
Biological buildup of carbonate sediment which affects deposition in adjacent areas and stands topographically higher than surrounding sediments during deposition


SettingDesc:
Linear reefs located along platform margins; reefs are more or less laterally continuous and may extend for hundreds of kms

SettingCom:
Linear reefs located along platform margins; reefs are more or less laterally continuous and may extend for hundreds of kms


SettingDesc:
Narrow, linear reef located hard up against the shoreline, with no intervening lagoon

SettingCom:
Narrow, linear reef located hard up against the shoreline, with no intervening lagoon


SettingDesc:
High energy tidal environ. with lag deposits composed of skeletal fragments of shallow-water organisms such as corals, calcareous algae, and bryozoa and/or ooids and peloids

SettingCom:
High energy tidal environ. with lag deposits composed of skeletal fragments of shallow-water organisms such as corals, calcareous algae, and bryozoa and/or ooids and peloids


SettingDesc:
Low energy, tidal flat environ. in which predominantly fine-grnd seds. accumulate.  Generally consist of  pelleted mudstones Syn; inner tidal

SettingCom:
Low energy, tidal flat environ. in which predominantly fine-grnd seds. accumulate.  Generally consist of  pelleted mudstones Syn; inner tidal


SettingDesc:
Sed. succession; outer-ramp carbonate muds give way in shoreward direction to bioclastic sand bodies give way to ooid sand bodies in near shore area

SettingCom:
Sed. succession; outer-ramp carbonate muds give way in shoreward direction to bioclastic sand bodies give way to ooid sand bodies in near shore area


SettingDesc:
Encompasses abysall plain/lower continental slope/lower reaches of submarine canyons

SettingCom:
Encompasses abysall plain/lower continental slope/lower reaches of submarine canyons


SettingDesc:
Fine grained sediment deposited far from land  influence by slow settling of particles suspended in the water column

SettingCom:
Fine grained sediment deposited far from land  influence by slow settling of particles suspended in the water column


SettingDesc:
Catastrophic or surge-type, high-velocity turbidity currents generated on the shelf or upper slope transporting sands and gravels to deeper water through submarine channels

SettingCom:
Catastrophic or surge-type, high-velocity turbidity currents generated on the shelf or upper slope transporting sands and gravels to deeper water through submarine channels


SettingDesc:
Submarine canyons discharge turbidites into fore-arc basins on the slope or into deep-sea trenches where they may spread out along the canyon axis

SettingCom:
Submarine canyons discharge turbidites into fore-arc basins on the slope or into deep-sea trenches where they may spread out along the canyon axis


SettingDesc:
Deposits of flows spread out from the mouths of canyons onto the deep seafloor to form deep-sea fans.  Typical of passive margin and back-arc basin setting

SettingCom:
Deposits of flows spread out from the mouths of canyons onto the deep seafloor to form deep-sea fans.  Typical of passive margin and back-arc basin setting


SettingDesc:
Large flat areas elevated some 2km above the seafloor comprised of thick rapidly erupted low Mg and Fe dominantly tholeiitic basalt and mafic intrusives covered with a thin layer of deep sea sediments (Condie)

SettingCom:
Large flat areas elevated some 2km above the seafloor comprised of thick rapidly erupted low Mg and Fe dominantly tholeiitic basalt and mafic intrusives covered with a thin layer of deep sea sediments (Condie)


SettingDesc:
Elongate steep-sided submarine volcanic ridges that mark the track of a mantle plume across the oceanic lithosphere during plate motion (Condie)

SettingCom:
Elongate steep-sided submarine volcanic ridges that mark the track of a mantle plume across the oceanic lithosphere during plate motion (Condie)


SettingDesc:
Precambrian tectonically stable elevated part of a continent composed of rocks that have been Precambrian tectonically stable elevated part of a continent composed of rocks that have been forming part of a shield (Condie)

SettingCom:
Precambrian tectonically stable elevated part of a continent composed of rocks that have been Precambrian tectonically stable elevated part of a continent composed of rocks that have been forming part of a shield (Condie)


SettingDesc:
The continental edge of a rift that has developed into an ocean basin with rift assemblages underlying true margin assemblages of mature clastic sediments, where back arc basins also develop arc sediments may interfinger (Condie)

SettingCom:
The continental edge of a rift that has developed into an ocean basin with rift assemblages underlying true margin assemblages of mature clastic sediments, where back arc basins also develop arc sediments may interfinger (Condie)


SettingDesc:
A ductile shear zone along converging plate boundaries containing rocks from both plates, often in a serpentine-rich matrix (Condie)

SettingCom:
A ductile shear zone along converging plate boundaries containing rocks from both plates, often in a serpentine-rich matrix (Condie)


