IRI: http://resource.geosciml.org/classifierscheme/cgi/201211/simplelithology
IRI: http://resource.geosciml.org/classifier/cgi/lithology/
IRI: http://resource.geosciml.org/classifier/cgi/lithology/acidic_igneous_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/acidic_igneous_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/alkali-olivine_basalt
IRI: http://resource.geosciml.org/classifier/cgi/lithology/alkali_feldspar_granite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/alkali_feldspar_rhyolite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/alkali_feldspar_syenite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/alkali_feldspar_syenitic_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/alkali_feldspar_trachyte
IRI: http://resource.geosciml.org/classifier/cgi/lithology/alkali_feldspar_trachytic_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/amphibolite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/andesite
note the mela-andesite and leuco-basalt categories are not recommended in this system. If chemical analytical data are available to constrain the silica content, the basalt or andesite category should be used.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/anorthosite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/anorthositic_rock
anorthositic rock term invented to label the combined QAPF fields 10, 10*, and 10', in order to construct hierarchy in this vocabulary.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/anthracite_coal
IRI: http://resource.geosciml.org/classifier/cgi/lithology/anthropogenic_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/anthropogenic_unconsolidated_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/aphanite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/aplite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/arenite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/ash_and_lapilli
IRI: http://resource.geosciml.org/classifier/cgi/lithology/ash_breccia_bomb_or_block_tephra
IRI: http://resource.geosciml.org/classifier/cgi/lithology/ash_tuff_lapillistone_and_lapilli_tuff
IRI: http://resource.geosciml.org/classifier/cgi/lithology/basalt
IRI: http://resource.geosciml.org/classifier/cgi/lithology/basanite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/basanitic_foidite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/basic_igneous_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/basic_igneous_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/bauxite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/biogenic_sediment
Corresponding biogenic sedimentary material and biogenic sedimentary rock categories are not included based on the interpretation that biogenic sedimentary rock will be in a different category, e.g. carbonate sedimentary rock or organic rich sedimentary rock.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/biogenic_silica_sedimentary_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/bituminous_coal
IRI: http://resource.geosciml.org/classifier/cgi/lithology/boninite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/boulder_gravel_size_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/boundstone
IRI: http://resource.geosciml.org/classifier/cgi/lithology/breccia
IRI: http://resource.geosciml.org/classifier/cgi/lithology/breccia_gouge_series
IRI: http://resource.geosciml.org/classifier/cgi/lithology/calcareous_carbonate_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/calcareous_carbonate_sedimentary_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/calcareous_carbonate_sedimentary_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/carbonate_mud
IRI: http://resource.geosciml.org/classifier/cgi/lithology/carbonate_mudstone
Not a subcategory of carbonate sedimentary rock because definition does not specify 'carbonate minerals of intrabasinal origin', but is agnostic on origin of carbonate.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/carbonate_ooze
IRI: http://resource.geosciml.org/classifier/cgi/lithology/carbonate_rich_mud
IRI: http://resource.geosciml.org/classifier/cgi/lithology/carbonate_rich_mudstone
'carbonate-rich mudstone' definition limits carbonate to mud-size fraction to avoid overlap with 'impure carbonate sedimentary rock'. If carbonate minerals are in sand or gravel size fractions, use 'impure carbonate sedimentary rock'
The operational test typically used to identify this category is if the rock fizzes when hydrochloric acid is applied. The '10 percent carbonate' criteria is a fuzzy boundary.
Rocks typcially called marlstone are subdivided into a carbonate rich variety, and a
IRI: http://resource.geosciml.org/classifier/cgi/lithology/carbonate_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/carbonate_sedimentary_material
Should carbonate sedimentary material be considered a kind of chemical sedimentary material? Is biogenic precipitation a chemical sedimentary process?
IRI: http://resource.geosciml.org/classifier/cgi/lithology/carbonate_sedimentary_rock
Carbonate rock subcatgories are defined on two orthogonal dimensions--mineralogy (calcitic vs. dolomitic vs non-carbonate impurities), and texture. The texture categories used here are those of Dunham (1962), and involve grain size (matrix vs. grains/allochems), fabric (matrix vs. grain supported), and genesis (bound, frame, or fragmental). The textural approach used for carbonate rocks is conceptually incompatible with that used for clastic sedimentary rocks, which is solely grain size or mineralogy based. This leads to problems in the vocabulary for rocks of mixed siliclastic/carbonate mineralogy (grainstone vs. sandstone, carbonate mudstone vs. carbonate rich mudstone, how to accomodate marlstone...).
IRI: http://resource.geosciml.org/classifier/cgi/lithology/carbonate_wackestone
IRI: http://resource.geosciml.org/classifier/cgi/lithology/carbonatite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/cataclasite_series
IRI: http://resource.geosciml.org/classifier/cgi/lithology/chalk
IRI: http://resource.geosciml.org/classifier/cgi/lithology/chemical_sedimentary_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/chlorite_actinolite_epidote_metamorphic_rock
Rock classified as Greenschist is difficult to categorize in the CGI SimpleLithology scheme. This stems in part from the variation in usage and the general fuzzy definition of the term. The definition of greenschist is generally something along the lines of 'metamorphosed rock with a greenish colour, characterized by the presence of actinolite, chlorite and epidote, and containing a planar or linear fabric. The presence or absence of schistose fabric in rocks called 'greenschist' is problematic. The fabric present in many rocks called greenschist is too weak or variably developed to meet the definition of 'schist' per CGI SimpleLithology. Generally if the rock has achieved metamorphic grade such that the term 'gneiss' is applicable, it would not be called greenschist. Thus, 'greenschist' would correspond most closely to a chlorite + actinolite rich 'Foliated metamorphic rock', but if it actually meets the definition of 'Schist' it would be a chlorite + actinolite 'Schist'.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/clastic_conglomerate
Note this category is equivlanet to category labeled 'Conglomeratic rock in SLTTs (2004), not to the category labeled 'Conglomerate' in that system.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/clastic_mudstone
Distinction of intrabasinal, diagenetic, or clastic genesis for very fine-grained carbonate minerals is interpretive in many cases. If there is uncertainty on the mudstone category based on intrabasinal vs epiclastic distinction required for clastic sedimentary rock-carbonate sedimentary rock categorization in this system, it is recommended to use the generic_mudstone category.
Schnurrenberger, D., Russell, J. and Kelts, K., 2003, Classification of lacustrine sediments based on sedimentary components: Journal of Paleolimnology, v.29, p141-154.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/clastic_sandstone
Note this category is equivalent to cagetory labeled 'sandy rock' in SLTTs (2004), not to the much more restricted category labeled 'Sandstone' in that system.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/clastic_sediment
Choice of 'clastic' is purposful. Other suggested labels for this category include siliciclastic and terrigineous clastic. Siliciclastic is considered too limiting because the category includes rocks that consists clasts of carbonate minerals, e.g. epiclastic detritus eroded from carbonate rock. Terrigineous clastic was considered and rejected first because it is considered redundant, anything that is terrigineous is clastic. Second, it is questionable if clastic sediment derived by submarine processes (fragementation by gravity sliding, faulting, or volcanic activity, with transport by sediment gravity flow or submarine currents) is terrigineous, but it is clastic and is meant to be included in this category.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/clastic_sedimentary_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/clastic_sedimentary_rock
Particularly for fine-grained sedimentary rocks, distinction of 'intrabasinal' versus 'clastic' genesis can be very interpretive. In practice the use of clastic mudstone terminology as opposed to carbonate mudstone terminology may be dermined by a priori knowledge about the rock being categorized. If it is associated with other clastic rocks, the clastic categories will be favored, if with cabonate rocks, the carbonate categories will be favored.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/clay
IRI: http://resource.geosciml.org/classifier/cgi/lithology/claystone
IRI: http://resource.geosciml.org/classifier/cgi/lithology/coal
IRI: http://resource.geosciml.org/classifier/cgi/lithology/cobble_gravel_size_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/composite_genesis_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/composite_genesis_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/compound_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/crystalline_carbonate
IRI: http://resource.geosciml.org/classifier/cgi/lithology/dacite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/diamictite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/diamicton
definition amplified to help distinguish diamicton, conglomerate and wackestone in this version
IRI: http://resource.geosciml.org/classifier/cgi/lithology/diorite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/dioritic_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/dioritoid
IRI: http://resource.geosciml.org/classifier/cgi/lithology/doleritic_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/dolomitic_or_magnesian_sedimentary_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/dolomitic_or_magnesian_sedimentary_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/dolomitic_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/dolostone
IRI: http://resource.geosciml.org/classifier/cgi/lithology/duricrust
IRI: http://resource.geosciml.org/classifier/cgi/lithology/eclogite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/evaporite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/exotic_alkaline_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/exotic_composition_igneous_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/exotic_evaporite
Category represents evaporite material that is not mostly gypsum/anhydrite or halite. These are generally not very common, thus the 'exotic' name
IRI: http://resource.geosciml.org/classifier/cgi/lithology/fault_related_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/fine_grained_igneous_rock
Need to make decision as to whether devitrified glass should be considered glass or microcrystalline framework for purposes of categorization
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_bearing_alkali_feldspar_syenite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_bearing_alkali_feldspar_trachyte
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_bearing_anorthosite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_bearing_diorite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_bearing_gabbro
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_bearing_latite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_bearing_monzodiorite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_bearing_monzogabbro
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_bearing_monzonite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_bearing_syenite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_bearing_trachyte
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_diorite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_dioritoid
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_gabbro
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_gabbroid
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_monzodiorite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_monzogabbro
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_monzosyenite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_syenite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foid_syenitoid
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foidite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foiditoid
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foidolite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/foliated_metamorphic_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/fragmental_igneous_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/fragmental_igneous_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/framestone
IRI: http://resource.geosciml.org/classifier/cgi/lithology/gabbro
Note that this category includes gabbro (sensu stricto) of LeMaitre et al. 2002, but is broader, including the other rock types defined by orthopyroxene-clinopyroxene-olivine-hornblende mineral ratios.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/gabbroic_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/gabbroid
IRI: http://resource.geosciml.org/classifier/cgi/lithology/generic_conglomerate
IRI: http://resource.geosciml.org/classifier/cgi/lithology/generic_mudstone
Distinction of intrabasinal, diagenetic, or clastic genesis for very fine-grained carbonate minerals is so interpretive that it is proposed to not define the mudstone category based on intrabasinal vs epiclastic distinction required for clastic sedimentary rock-carbonate sedimentary rock categorization in this system.
Schnurrenberger, D., Russell, J. and Kelts, K., 2003, Classification of lacustrine sediments based on sedimentary components: Journal of Paleolimnology, v.29, p141-154.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/generic_sandstone
IRI: http://resource.geosciml.org/classifier/cgi/lithology/glass_rich_igneous_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/glassy_igneous_rock
Note that this category is used for massive glassy rocks. Much of the pyroclastic material in a pyroclastic rock may be composed of glass, but the rock is named based on its fragmental nature.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/glaucophane_lawsonite_epidote_metamorphic_rock
Fabric is weakly developed in this rock in many cases, so the fabric categories 'foliated metamorphic rock, 'schist' or 'granofels' may apply.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/gneiss
IRI: http://resource.geosciml.org/classifier/cgi/lithology/grainstone
IRI: http://resource.geosciml.org/classifier/cgi/lithology/granite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/granitoid
IRI: http://resource.geosciml.org/classifier/cgi/lithology/granodiorite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/granofels
IRI: http://resource.geosciml.org/classifier/cgi/lithology/granulite
According to Fettes and Desmons (2007) the main calc-silicate minerals are calcic garnet, calcic plagioclase, calcic scapolite, diopside-hedenbergite, epidote group minerals, hydrogrossular, johannsenite, prehnite, pumpellyite, titanite, vesuvianite, wollastonite.
It is unclear from definitions in Fettes and Desmons (2002) if calcic plagioclase is to be considered part of the required feldspar content of a granulite, or a calc-silicate phase.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/gravel
IRI: http://resource.geosciml.org/classifier/cgi/lithology/gravel_size_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/high_magnesium_fine_grained_igneous_rocks
IRI: http://resource.geosciml.org/classifier/cgi/lithology/hornblendite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/hornfels
IRI: http://resource.geosciml.org/classifier/cgi/lithology/hybrid_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/hybrid_sedimentary_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/igneous_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/igneous_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/impact_generated_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/impure_calcareous_carbonate_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/impure_carbonate_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/impure_carbonate_sedimentary_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/impure_dolomitic_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/impure_dolostone
IRI: http://resource.geosciml.org/classifier/cgi/lithology/impure_limestone
IRI: http://resource.geosciml.org/classifier/cgi/lithology/intermediate_composition_igneous_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/intermediate_composition_igneous_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/iron_rich_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/iron_rich_sedimentary_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/iron_rich_sedimentary_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/kalsilitic_and_melilitic_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/komatiitic_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/latite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/latitic_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/lignite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/limestone
IRI: http://resource.geosciml.org/classifier/cgi/lithology/marble
IRI: http://resource.geosciml.org/classifier/cgi/lithology/material_formed_in_surficial_environment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/metamorphic_rock
Robertson (1999) defines the boundary between diagenesis and metamorphism in sedimentary rocks as follows:
“…the boundary between diagenesis and metamorphism is somewhat arbitrary and strongly dependent on the lithologies involved. For example changes take place in organic materials at lower temperatures than in rocks dominated by silicate minerals. In mudrocks, a white mica (illite) crystallinity value of < 0.42D.2U obtained by X-ray diffraction analysis, is used to define the onset of metamorphism (Kisch, 1991). In this scheme, the first appearance of glaucophane, lawsonite, paragonite, prehnite, pumpellyite or stilpnomelane is taken to indicate the lower limit of metamorphism (Frey and Kisch, 1987; Bucher and Frey, 1994; Frey and Robinson, 1998). Most workers agree that such mineral growth starts at 150 ± 50° C in silicate rocks. Many lithologies may show no change in mineralogy under these conditions and hence the recognition of the onset of metamorphism will vary with bulk composition.”
IRI: http://resource.geosciml.org/classifier/cgi/lithology/metasomatic_rock
SLTTm (2004) proposed the following criteria to distinguish hydrothermally altered or metasomatic rock from igneous rock. "The rock is classified as metamorphic if (1) the texture has been modified such that it can no longer be considered igneous, (2) the bulk composition of the rock is inconsistent with compositions that can be derived purely from a magma and associated processes such as assimilation and differentiation, or (3) minerals inconsistent with magmatic crystallization are present."
IRI: http://resource.geosciml.org/classifier/cgi/lithology/mica_schist
Include single subcategory of schist to indicate this common kind of schist. 'Mica rich metamorphic rock' for compound use with schist fabric term would be more compatible with treatment of blueschist (Glaucophane lawsonite epidote metamorphic rock) and greenschist (Chlorite actinolite epidote metamorphic rock), but based on the assumption that schist is the only rock type that will meet the mica-rich criteria, it seems reasonable to include as a subtype of schist.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/migmatite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/monzodiorite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/monzodioritic_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/monzogabbro
IRI: http://resource.geosciml.org/classifier/cgi/lithology/monzogabbroic_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/monzogranite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/monzonite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/monzonitic_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/mud
IRI: http://resource.geosciml.org/classifier/cgi/lithology/mud_size_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/mylonitic_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/natural_unconsolidated_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/non_clastic_siliceous_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/non_clastic_siliceous_sedimentary_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/non_clastic_siliceous_sedimentary_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/ooze
Neuendorf et al. 2005 put cutoff at 30 percent skeletal remains; this is raised to 50 percent in This vocabulary for consistency with definition of other Biogenic sediment category
IRI: http://resource.geosciml.org/classifier/cgi/lithology/organic_bearing_mudstone
IRI: http://resource.geosciml.org/classifier/cgi/lithology/organic_rich_sediment
The broader relation from organic rich sediment to biogenic sediment is based on the inference that organic rich material is always biogenic in origin. Biogenic is a broader category because not all biogenic materials are organic rich, for example shells or phosphatic bone.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/organic_rich_sedimentary_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/organic_rich_sedimentary_rock
sapropelic coal, and asphaltite are not differentiated in This vocabulary
IRI: http://resource.geosciml.org/classifier/cgi/lithology/orthogneiss
IRI: http://resource.geosciml.org/classifier/cgi/lithology/packstone
Note that this category overlaps with 'carbonate mudstone'.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/paragneiss
IRI: http://resource.geosciml.org/classifier/cgi/lithology/peat
IRI: http://resource.geosciml.org/classifier/cgi/lithology/pegmatite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/peridotite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/phaneritic_igneous_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/phonolilte
IRI: http://resource.geosciml.org/classifier/cgi/lithology/phonolitic_basanite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/phonolitic_foidite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/phonolitic_tephrite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/phonolitoid
IRI: http://resource.geosciml.org/classifier/cgi/lithology/phosphate_rich_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/phosphate_rich_sedimentary_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/phosphorite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/phyllite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/phyllonite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/porphyry
IRI: http://resource.geosciml.org/classifier/cgi/lithology/pure_calcareous_carbonate_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/pure_carbonate_mudstone
IRI: http://resource.geosciml.org/classifier/cgi/lithology/pure_carbonate_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/pure_carbonate_sedimentary_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/pure_dolomitic_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/pyroclastic_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/pyroclastic_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/pyroxenite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/quartz_alkali_feldspar_syenite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/quartz_alkali_feldspar_trachyte
IRI: http://resource.geosciml.org/classifier/cgi/lithology/quartz_anorthosite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/quartz_diorite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/quartz_gabbro
IRI: http://resource.geosciml.org/classifier/cgi/lithology/quartz_latite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/quartz_monzodiorite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/quartz_monzogabbro
IRI: http://resource.geosciml.org/classifier/cgi/lithology/quartz_monzonite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/quartz_rich_igneous_rock
Occurrence of igneous rocks meeting this criteria seems to be vanishingly rare, thus subdividing the category does not seem warranted for the purposes of This vocabulary. Future usage of the vocabulary may motivate including quatzolite and quartz-rich granitoid in future revisions
IRI: http://resource.geosciml.org/classifier/cgi/lithology/quartz_syenite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/quartz_trachyte
IRI: http://resource.geosciml.org/classifier/cgi/lithology/quartzite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/residual_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/rhyolite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/rhyolitoid
Note that technical definition, based on modal mineralogy plotted in a QAPF triangle may be applied qualitatively, based on phenocryst mineralogy when ground mass mineralogy can not be determined optically, or based on CIPW norm. Although TAS categories are defined based on chemical analyses, the correspondence with the QAPF defined categories is generally close enough that QAPF categories are commonly used interchangeably with TAS categories. It is important to note the basis for assignment of fine-grained igneous rocks to a specifice lithology category.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/rock_gypsum_or_anhydrite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/rock_salt
IRI: http://resource.geosciml.org/classifier/cgi/lithology/sand
IRI: http://resource.geosciml.org/classifier/cgi/lithology/sand_size_sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/sapropel
IRI: http://resource.geosciml.org/classifier/cgi/lithology/schist
IRI: http://resource.geosciml.org/classifier/cgi/lithology/sediment
IRI: http://resource.geosciml.org/classifier/cgi/lithology/sedimentary_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/sedimentary_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/serpentinite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/shale
Note definition does not specify carbonate vs. siliclastic nature of mud.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/silicate_mud
IRI: http://resource.geosciml.org/classifier/cgi/lithology/silicate_mudstone
Operational distinction of this category will typically be based on whether or not the rock fizzes when hydrochloric acid is applied--the rock is silicate mudstone if it does not fizz. The quantitative '10 percent' criteria is fuzzy.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/siliceous_ooze
IRI: http://resource.geosciml.org/classifier/cgi/lithology/silt
IRI: http://resource.geosciml.org/classifier/cgi/lithology/siltstone
Use of 'dectable silt' in the criteria for this category is based on the observation that in practice, distinction of claystone from 'siltstone' is typically based on a qualitative assessment of 'grittiness' (e.g. rubbing with fingers, or chewing); the property that these tests can determine is the presence or absence of silty particles in the material. Quantitative grain size analysis in the the clay/silt fraction of a lithified sediment is difficult at best, and of questionable significance because diagensis has altered the size and mineralogy of original sedimentary particles.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/skarn
IRI: http://resource.geosciml.org/classifier/cgi/lithology/slate
IRI: http://resource.geosciml.org/classifier/cgi/lithology/spilite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/syenite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/syenitic_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/syenitoid
IRI: http://resource.geosciml.org/classifier/cgi/lithology/syenogranite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/tephra
IRI: http://resource.geosciml.org/classifier/cgi/lithology/tephrite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/tephritic_foidite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/tephritic_phonolite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/tephritoid
IRI: http://resource.geosciml.org/classifier/cgi/lithology/tholeiitic_basalt
definition of tholeiite and alkali basalt here are more proscriptive than those found in most reference authorities. This is to actually provide some descriptive criteria to allow assignment of rocks on a hand sample basis to the tholeiite or alkali basalt categories if detailed petrographic or chemical data are available.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/tonalite
IRI: http://resource.geosciml.org/classifier/cgi/lithology/trachyte
IRI: http://resource.geosciml.org/classifier/cgi/lithology/trachytic_rock
LeMaitre et al. (2002) used 'trachyte' to refer to QAPF fields 7, 7', and 7* in the text (p. 30) as well as to the more restrictive category (QAPF field 7 only). The term Trachytic rock is introduced here to label this more general category of trachyte.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/trachytoid
IRI: http://resource.geosciml.org/classifier/cgi/lithology/travertine
IRI: http://resource.geosciml.org/classifier/cgi/lithology/tuff_breccia_agglomerate_or_pyroclastic_breccia
IRI: http://resource.geosciml.org/classifier/cgi/lithology/tuffite
50 percent cutoff with epiclastic rock is in contrast with LeMaitre et al., but is used for consistentency with other sedimentary rock categories following the pattern that the rock name reflects the predominant constituent.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/ultrabasic_igneous_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/ultramafic_igneous_rock
IRI: http://resource.geosciml.org/classifier/cgi/lithology/unconsolidated_material
IRI: http://resource.geosciml.org/classifier/cgi/lithology/wacke
Distinction from mudstone is based on inference that less that 50 percent of the mud size fraction (matrix) is original mud size detrital particles. May also grade into diamictite or conglomerate based on size distribution of discernible particles. If more than 50 percent of rock is detrital particles of intrabasinal orgin and carbonate composition, categorize as carbonate wackestone.
IRI: http://resource.geosciml.org/classifier/cgi/lithology/pebble_gravel_size_sediment
IRI: http://resource.geosciml.org/vocabulary/cgi/201211/simplelithology
This HTML document was obtained by processing the OWL ontology source code through LODE, Live OWL Documentation Environment, developed by Silvio Peroni.
definition of tholeiite and alkali basalt here are more proscriptive than those found in most reference authorities. This is to actually provide some descriptive criteria to allow assignment of rocks on a hand sample basis to the tholeiite or alkali basalt categories if detailed petrographic or chemical data are available.