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Legend (OneGeology/AZGS_HIGS_Geology)

US-HI_HIGS_250k_Geologic_Age (0)
Archean
Calabrian
Calymmian
Cambrian
Carboniferous
Cenozoic
Cisuralian
Cretaceous
Devonian
Ectasian
Eocene
Holocene
Ionian
Jurassic
Lopingian
Lower Cretaceous
Lower Devonian
Lower Jurassic
Lower Mississippian
Lower Ordovician
Lower Pennsylvanian
Lutetian
Mesoproterozoic
Mesozoic
Messinian
Middle Devonian
Middle Jurassic
Middle Ordovician
Miocene
Mississippian
Neoarchean
Neogene
Neoproterozoic
Oligocene
Ordovician
Orosirian
Paleoarchean
Paleocene
Paleogene
Paleoproterozoic
Paleozoic
Pennsylvanian
Permian
Phanerozoic
Pleistocene
Pliocene
Precambrian
Priabonian
Proterozoic
Quaternary
Rhuddanian
Santonian
Silurian
Statherian
Stenian
Triassic
Upper Cretaceous
Upper Devonian
Upper Jurassic
Upper Mississippian
Upper Ordovician
Upper Pennsylvanian
Upper Pleistocene
Ypresian
US-HI_HIGS_250k_Lithology (1)
<all other values>
Acidic igneous material
Acidic igneous rock
Alkali olivine basalt
Alkali feldspar granite
Alkali feldspar rhyolite
Alkali feldspar syenite
Alkali feldspar syenitic rock
Alkali feldspar trachyte
Alkali feldspar trachytic rock
Amphibolite
Andesite
Anorthosite
Anorthositic rock
Anthracite
Anthropogenic material
Anthropogenic unconsolidated material
Aphanite
Aplite
Arenite
Ash and lapilli
Ash breccia, bomb, or block tephra
Ash tuff, lapillistone, and lapilli tuff
Basalt
Basanite
Basanitic foidite
Basic igneous material
Basic igneous rock
Bauxite
Biogenic sediment
Biogenic silica sedimentary rock
Bituminous coal
Boninite
Boulder gravel size sediment
Boundstone
Breccia
Breccia-gouge series
Calcareous carbonate sediment
Calcareous carbonate sedimentary material
Calcareous carbonate sedimentary rock
Carbonate mud
Carbonate mudstone
Carbonate ooze
Carbonate rich mud
Carbonate rich mudstone
Carbonate sediment
Carbonate sedimentary material
Carbonate sedimentary rock
Carbonate wackestone
Carbonatite
Cataclasite series
Chalk
Chemical sedimentary material
Chlorite actinolite epidote metamorphic rock
Conglomerate
Mudstone
Sandstone
Clastic sediment
Clastic sedimentary material
Clastic sedimentary rock
Clay
Claystone
Coal
Cobble gravel size sediment
Composite genesis material
Composite genesis rock
Compound material
Crystalline carbonate
Dacite
Diamictite
Diamicton
Diorite
Dioritic rock
Dioritoid
Doleritic rock
Dolomitic or magnesian sedimentary material
Dolomitic or magnesian sedimentary rock
Dolomitic sediment
Dolomite
Duricrust
Eclogite
Evaporite
Exotic alkaline rock
Exotic composition igneous rock
Exotic evaporite
Fault-related material
Fine grained igneous rock
Foid bearing alkali feldspar syenite
Foid bearing alkali feldspar trachyte
Foid bearing anorthosite
Foid bearing diorite
Foid bearing gabbro
Foid bearing latite
Foid bearing monzodiorite
Foid bearing monzogabbro
Foid bearing monzonite
Foid bearing syenite
Foid bearing trachyte
Foid diorite
Foid dioritoid
Foid gabbro
Foid gabbroid
Foid monzodiorite
Foid monzogabbro
Foid monzosyenite
Foid syenite
Foid syenitoid
Foidite
Foiditoid
Foidolite
Foliated metamorphic rock
Fragmental igneous material
Fragmental igneous rock
Framestone
Gabbro
Gabbroic rock
Gabbroid
Generic conglomerate
Generic mudstone
Generic sandstone
Glass rich igneous rock
Glassy igneous rock
Glaucophane lawsonite epidote metamorphic rock
Gneiss
Grainstone
Granite
Granitoid
Granodiorite
Granofels
Granulite
Gravel
Gravel size sediment
High magnesium fine grained igneous rock
Hornblendite
Hornfels
Hybrid sediment
Hybrid sedimentary rock
Igneous material
Igneous rock
Impact generated material
Impure calcareous carbonate sediment
Impure carbonate sediment
Impure carbonate sedimentary rock
Impure dolomitic sediment
Impure dolomite
Impure limestone
Intermediate composition igneous material
Intermediate composition igneous rock
Iron rich sediment
Iron rich sedimentary material
Iron rich sedimentary rock
Kalsilitic and melilitic rocks
Komatiitic rock
Latite
Latitic rock
Lignite
Limestone
Marble
Material formed in surficial environment
Metamorphic rock
Metasomatic rock
Mica schist
Migmatite
Monzodiorite
Monzodioritic rock
Monzogabbro
Monzogabbroic rock
Monzogranite
Monzonite
Monzonitic rock
Mud
Mud size sediment
Mylonitic rock
Natural unconsolidated material
Non-clastic siliceous sediment
Non-clastic siliceous sedimentary material
Non-clastic siliceous sedimentary rock
Ooze
Organic bearing mudstone
Organic rich sediment
Organic rich sedimentary material
Organic rich sedimentary rock
Orthogneiss
Packstone
Paragneiss
Peat
Pebble gravel size sediment
Pegmatite
Peridotite
Phaneritic igneous rock
Phonolite
Phonolitic basanite
Phonolitic foidite
Phonolitic tephrite
Phonolitoid
Phosphate rich sediment
Phosphate rich sedimentary material
Phosphorite
Phyllite
Phyllonite
Porphyry
Pure calcareous carbonate sediment
Pure carbonate mudstone
Pure carbonate sediment
Pure carbonate sedimentary rock
Pure dolomitic sediment
Pyroclastic material
Pyroclastic rock
Pyroxenite
Quartz alkali feldspar syenite
Quartz alkali feldspar trachyte
Quartz anorthosite
Quartz diorite
Quartz gabbro
Quartz latite
Quartz monzodiorite
Quartz monzogabbro
Quartz monzonite
Quartz rich igneous rock
Quartz syenite
Quartz trachyte
Quartzite
Residual material
Rhyolite
Rhyolitoid
Rock
Gypsum or anhydrite
Rock salt
Sand
Sand size sediment
Sapropel
Schist
Sediment
Sedimentary material
Sedimentary rock
Serpentinite
Shale
Silicate mud
Silicate mudstone
Siliceous ooze
Silt
Siltstone
Skarn
Slate
Spilite
Syenite
Syenitic rock
Syenitoid
Syenogranite
Tephra
Tephrite
Tephritic foidite
Tephritic phonolite
Tephritoid
Tholeiitic basalt
Tonalite
Trachyte
Trachytic rock
Trachytoid
Travertine
Tuff-breccia, agglomerate, or pyroclastic breccia
Tuffite
Ultrabasic igneous rock
Ultramafic igneous rock
Unconsolidated material
Wacke
CGI Simple Lithology Categories