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all geography including DSDP/ODP Sites and Legs
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Africa
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East Africa
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Kenya
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Lake Magadi (1)
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Lake Natron (1)
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Lake Turkana (1)
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East African Lakes
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Lake Magadi (1)
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Lake Tanganyika (1)
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North Africa
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Algeria (1)
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Morocco (2)
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Southern Africa (1)
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Altiplano (1)
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Arctic region (1)
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Asia
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Far East
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China
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Australasia
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North America
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Great Plains
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Northeast Pacific
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Northwest Pacific
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Pacific Basin (2)
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West Pacific
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Pacific region
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United States
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Arizona
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Coconino County Arizona (2)
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La Paz County Arizona (1)
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Butte County California
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Central California (14)
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Fresno County California (2)
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Humboldt County California
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Imperial County California (4)
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Inyo County California
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Kern County California (2)
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Los Angeles Basin (2)
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Los Angeles County California
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Long Beach California (1)
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Los Angeles California
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San Fernando California (1)
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Madera County California (1)
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Melones Fault (1)
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Mendocino County California (1)
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Modoc County California (1)
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Modoc Plateau (1)
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Mono County California
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Inyo Domes (1)
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Monterey Bay (2)
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Monterey County California (1)
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Northern California (21)
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Orange County California (2)
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Rattlesnake Creek Terrane (1)
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Salinian Block (5)
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Salton Trough (3)
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San Benito County California (1)
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San Bernardino County California
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San Diego County California
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San Diego California (1)
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San Francisco Bay region (1)
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San Francisco County California
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San Gabriel Fault (1)
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San Joaquin County California (1)
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San Joaquin Valley (3)
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San Luis Obispo County California
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Pismo Basin (1)
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San Luis Obispo California (1)
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San Mateo County California (1)
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Santa Barbara Channel (1)
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Santa Barbara County California
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Santa Clara County California (1)
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Santa Cruz County California
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Santa Cruz California (1)
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Santa Monica Mountains (1)
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Shasta County California
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Lassen Peak (2)
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Sierra Nevada Batholith (5)
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Siskiyou County California
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Sonoma County California (1)
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Southern California (34)
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Trinity County California (2)
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Colorado
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Texas
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Western U.S. (868)
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-
-
shale oil (1)
-
-
phosphate deposits (1)
-
placers (1)
-
quartz crystal (1)
-
tight sands (2)
-
water resources (1)
-
-
elements, isotopes
-
boron (1)
-
carbon
-
C-13/C-12 (12)
-
C-14 (4)
-
organic carbon (4)
-
-
chemical ratios (3)
-
halogens
-
chlorine (1)
-
fluorine (2)
-
-
hydrogen
-
D/H (6)
-
deuterium (1)
-
-
isotope ratios (35)
-
isotopes
-
radioactive isotopes
-
Al-26 (1)
-
Be-10 (3)
-
C-14 (4)
-
Pb-206/Pb-204 (5)
-
Pb-207/Pb-204 (4)
-
Pb-208/Pb-204 (2)
-
-
stable isotopes
-
C-13/C-12 (12)
-
D/H (6)
-
deuterium (1)
-
Hf-177/Hf-176 (1)
-
N-15/N-14 (1)
-
Nd-144/Nd-143 (10)
-
O-18/O-16 (15)
-
Pb-206/Pb-204 (5)
-
Pb-207/Pb-204 (4)
-
Pb-207/Pb-206 (2)
-
Pb-208/Pb-204 (2)
-
S-34/S-32 (1)
-
Sr-87/Sr-86 (15)
-
-
-
metals
-
actinides
-
thorium (1)
-
uranium (1)
-
-
alkali metals
-
potassium (2)
-
rubidium (1)
-
sodium (1)
-
-
alkaline earth metals
-
barium (2)
-
beryllium
-
Be-10 (3)
-
-
calcium (2)
-
magnesium (1)
-
strontium
-
Sr-87/Sr-86 (15)
-
-
-
aluminum
-
Al-26 (1)
-
-
gallium (1)
-
hafnium
-
Hf-177/Hf-176 (1)
-
-
lead
-
Pb-206/Pb-204 (5)
-
Pb-207/Pb-204 (4)
-
Pb-207/Pb-206 (2)
-
Pb-208/Pb-204 (2)
-
-
mercury (1)
-
molybdenum (1)
-
platinum group
-
palladium ores (1)
-
platinum ores (1)
-
-
precious metals (3)
-
rare earths
-
lanthanum (1)
-
neodymium
-
Nd-144/Nd-143 (10)
-
-
ytterbium (1)
-
yttrium (2)
-
-
tin (1)
-
tungsten (1)
-
zinc (1)
-
-
nitrogen
-
N-15/N-14 (1)
-
-
oxygen
-
O-18/O-16 (15)
-
-
phosphorus (1)
-
selenium (1)
-
sulfur
-
S-34/S-32 (1)
-
-
tellurium (1)
-
-
fossils
-
burrows (2)
-
Chordata
-
Vertebrata
-
Agnatha
-
Heterostraci (1)
-
-
Pisces
-
Acanthodii (1)
-
Osteichthyes
-
Actinopterygii
-
Teleostei (1)
-
-
-
-
Tetrapoda
-
Mammalia
-
Theria
-
Eutheria
-
Carnivora (1)
-
Perissodactyla (1)
-
Rodentia
-
Myomorpha
-
Cricetidae
-
Neotoma (1)
-
-
-
-
Ungulata (2)
-
-
-
-
Reptilia
-
Diapsida
-
Archosauria
-
dinosaurs
-
Ornithischia
-
Ceratopsia
-
Ceratopsidae (1)
-
-
Stegosaurus (1)
-
-
Saurischia
-
Sauropodomorpha
-
Sauropoda
-
Camarasaurus (1)
-
Diplodocidae
-
Apatosaurus (1)
-
Diplodocus (1)
-
-
-
-
Theropoda
-
Carnosauria
-
Allosaurus (1)
-
-
-
-
-
-
-
-
-
-
-
ichnofossils
-
Arenicolites (1)
-
Planolites (1)
-
Rhizocorallium (1)
-
Thalassinoides (1)
-
-
Invertebrata
-
Arthropoda
-
Mandibulata
-
Crustacea
-
Branchiopoda (2)
-
Ostracoda
-
Podocopida
-
Cypridocopina
-
Cyprididae
-
Candona (1)
-
-
-
-
-
-
-
Trilobitomorpha
-
Trilobita (8)
-
-
-
Brachiopoda
-
Inarticulata (1)
-
-
Cnidaria
-
Anthozoa (3)
-
-
Echinodermata
-
Crinozoa
-
Crinoidea (3)
-
-
Echinozoa
-
Echinoidea (1)
-
-
Homalozoa
-
Homoiostelea (1)
-
Stylophora (2)
-
-
-
Mollusca
-
Bivalvia
-
Arcidae (1)
-
Heterodonta
-
Veneroida
-
Veneridae
-
Chione (1)
-
-
-
-
Ostreoidea
-
Gryphaea (1)
-
-
Pterioida
-
Pteriina
-
Inocerami
-
Inoceramidae (1)
-
-
Pectinacea (1)
-
-
-
-
Cephalopoda
-
Ammonoidea
-
Ammonites (2)
-
-
-
Gastropoda
-
Mesogastropoda (1)
-
Naticidae (1)
-
Pulmonata (1)
-
-
Hyolithes (1)
-
Scaphopoda (1)
-
-
Protista
-
Foraminifera
-
Fusulinina
-
Fusulinidae (3)
-
-
Rotaliina
-
Cassidulinacea
-
Globocassidulina (1)
-
-
Rotaliacea
-
Elphidium (1)
-
-
-
-
Radiolaria (5)
-
Silicoflagellata (2)
-
-
Vermes (1)
-
-
Metazoa (3)
-
microfossils
-
Charophyta (1)
-
Conodonta
-
Neogondolella (2)
-
-
Fusulinina
-
Fusulinidae (3)
-
-
-
palynomorphs
-
Dinoflagellata (1)
-
miospores
-
pollen (2)
-
-
-
Plantae
-
algae
-
Chlorophyta
-
Charophyta (1)
-
-
Coccolithophoraceae (2)
-
diatoms (7)
-
nannofossils
-
Discoasteridae (1)
-
-
-
Pteridophyta (1)
-
Spermatophyta
-
Angiospermae
-
Dicotyledoneae
-
Quercus (1)
-
-
-
Gymnospermae
-
Coniferales (2)
-
Cycadales (1)
-
Ginkgoales (1)
-
-
-
-
thallophytes (6)
-
tracks (3)
-
-
geochronology methods
-
(U-Th)/He (2)
-
Ar/Ar (17)
-
exposure age (3)
-
fission-track dating (2)
-
K/Ar (12)
-
optically stimulated luminescence (2)
-
paleomagnetism (28)
-
Pb/Pb (1)
-
racemization (1)
-
Rb/Sr (4)
-
Re/Os (2)
-
Sm/Nd (2)
-
tephrochronology (7)
-
Th/U (2)
-
thermochronology (3)
-
tree rings (2)
-
U/Pb (32)
-
U/Th/Pb (1)
-
uranium disequilibrium (3)
-
-
geologic age
-
Cenozoic
-
lower Cenozoic (1)
-
middle Cenozoic (1)
-
Quaternary
-
Cordilleran ice sheet (1)
-
Holocene
-
Flandrian (1)
-
upper Holocene (3)
-
-
Pleistocene
-
Bishop Tuff (2)
-
Illinoian (2)
-
Lake Lahontan (2)
-
Lake Missoula (2)
-
upper Pleistocene
-
Weichselian
-
upper Weichselian
-
Allerod (1)
-
Younger Dryas (2)
-
-
-
Wisconsinan
-
lower Wisconsinan (1)
-
upper Wisconsinan (1)
-
-
-
-
upper Quaternary
-
Pinedale Glaciation (2)
-
-
-
Tertiary
-
Challis Volcanics (2)
-
lower Tertiary (5)
-
middle Tertiary (6)
-
Neogene
-
Miocene
-
Astoria Formation (1)
-
Barstovian (1)
-
Columbia River Basalt Group (10)
-
Frenchman Springs Member (1)
-
Grande Ronde Basalt (2)
-
lower Miocene
-
Hemingfordian (1)
-
Saucesian (1)
-
-
middle Miocene
-
Luisian (2)
-
-
Mohnian (1)
-
Picture Gorge Basalt (1)
-
Pungo River Formation (1)
-
Relizian (1)
-
Saddle Mountains Basalt (1)
-
Stevens Sandstone (1)
-
upper Miocene
-
Montesano Formation (1)
-
-
Wanapum Basalt (2)
-
-
Ogallala Formation (2)
-
Pliocene
-
lower Pliocene (4)
-
middle Pliocene (1)
-
-
Purisima Formation (1)
-
Sisquoc Formation (2)
-
-
Paleogene
-
Eocene
-
Clarno Formation (2)
-
Flournoy Formation (1)
-
Green River Formation (11)
-
Lake Gosiute (1)
-
Llajas Formation (1)
-
Lookingglass Formation (2)
-
lower Eocene (2)
-
middle Eocene
-
Laney Shale Member (2)
-
Tyee Formation (3)
-
-
Narizian (1)
-
Umpqua Formation (2)
-
upper Eocene
-
Cowlitz Formation (1)
-
-
-
lower Paleogene (1)
-
Oligocene
-
lower Oligocene (3)
-
upper Oligocene (1)
-
-
Paleocene
-
lower Paleocene
-
K-T boundary (4)
-
Torrejonian (1)
-
-
upper Paleocene
-
Tiffanian (1)
-
-
-
Refugian (2)
-
Renova Formation (1)
-
Santa Susana Formation (2)
-
Sespe Formation (1)
-
upper Paleogene (1)
-
Wasatch Formation (2)
-
White River Group (2)
-
Wilcox Group (1)
-
-
Shahejie Formation (1)
-
-
upper Cenozoic (7)
-
-
Lake Bonneville (2)
-
Laurentide ice sheet (2)
-
Mesozoic
-
Cretaceous
-
Dakota Formation (2)
-
Lower Cretaceous
-
Albian (1)
-
Aptian (1)
-
Burro Canyon Formation (1)
-
Cloverly Formation (1)
-
Mowry Shale (3)
-
Muddy Sandstone (1)
-
Skull Creek Shale (2)
-
Valanginian (1)
-
-
Mancos Shale (3)
-
Middle Cretaceous (1)
-
Nenjiang Formation (1)
-
Qingshankou Formation (1)
-
Upper Cretaceous
-
Blackhawk Formation (1)
-
Bridge Creek Limestone Member (2)
-
Campanian
-
lower Campanian (1)
-
-
Cardium Formation (1)
-
Carlile Shale (1)
-
Castlegate Sandstone (2)
-
Cenomanian (6)
-
Cody Shale (1)
-
Coniacian (3)
-
Crevasse Canyon Formation (1)
-
Ferron Sandstone Member (1)
-
Fort Hays Limestone Member (3)
-
Frontier Formation (2)
-
Fruitland Formation (2)
-
Gallup Sandstone (1)
-
Greenhorn Limestone (2)
-
Hell Creek Formation (1)
-
K-T boundary (4)
-
Ladd Formation (1)
-
Maestrichtian (5)
-
Menefee Formation (1)
-
Mesaverde Group (6)
-
Moreno Formation (1)
-
Niobrara Formation (2)
-
Pierre Shale (2)
-
Point Lookout Sandstone (1)
-
Santonian (2)
-
Senonian (7)
-
Sharon Springs Member (1)
-
Smoky Hill Chalk Member (1)
-
Star Point Sandstone (1)
-
Turonian
-
upper Turonian (1)
-
-
-
-
Franciscan Complex (5)
-
Great Valley Sequence (5)
-
Jurassic
-
Coast Range Ophiolite (1)
-
Ferrar Group (1)
-
Lower Jurassic
-
middle Liassic (1)
-
Pliensbachian (3)
-
Toarcian (2)
-
Triassic-Jurassic boundary (1)
-
-
Middle Jurassic
-
Bajocian
-
Yakoun Group (1)
-
-
-
Posidonia Shale (1)
-
Smartville Complex (1)
-
Upper Jurassic
-
Brushy Basin Member (2)
-
Entrada Sandstone (1)
-
Galice Formation (1)
-
Kimmeridgian
-
upper Kimmeridgian (1)
-
-
Morrison Formation (11)
-
Salt Wash Sandstone Member (3)
-
Stump Formation (1)
-
Sundance Formation (1)
-
-
-
lower Mesozoic (4)
-
Moenave Formation (1)
-
Navajo Sandstone (1)
-
Nugget Sandstone (1)
-
Triassic
-
Lower Triassic
-
Dinwoody Formation (3)
-
Induan (1)
-
Permian-Triassic boundary (5)
-
Scythian (1)
-
Smithian (2)
-
Spathian (2)
-
Thaynes Formation (3)
-
Werfenian (1)
-
-
Moenkopi Formation (3)
-
Upper Triassic
-
Carnian (1)
-
Chinle Formation (4)
-
Norian (1)
-
Shinarump Member (2)
-
Triassic-Jurassic boundary (1)
-
-
-
upper Mesozoic (1)
-
-
Paleozoic
-
Cambrian
-
Lower Cambrian
-
Atdabanian (1)
-
Rome Formation (1)
-
-
Middle Cambrian
-
Wheeler Formation (1)
-
-
Pioche Shale (2)
-
Upper Cambrian
-
Dunderberg Shale (1)
-
Furongian (1)
-
Steptoean (1)
-
-
-
Carboniferous
-
Chilliwack Group (1)
-
Middle Carboniferous (1)
-
Mississippian
-
Barnett Shale (1)
-
Lower Mississippian
-
Joana Limestone (1)
-
Kinderhookian (1)
-
Osagian (1)
-
-
Madison Group (1)
-
Upper Mississippian
-
Chesterian
-
Golconda Formation (1)
-
-
-
-
Namurian (2)
-
Pennsylvanian
-
Lower Pennsylvanian
-
Bashkirian (1)
-
Morrowan (3)
-
-
Middle Pennsylvanian
-
Atokan (3)
-
Desmoinesian (1)
-
Paradox Formation (1)
-
-
Upper Pennsylvanian
-
Virgilian (1)
-
-
-
Schoonover Sequence (1)
-
Upper Carboniferous (3)
-
-
Devonian
-
Lost Burro Formation (1)
-
Lower Devonian
-
Emsian (1)
-
-
Middle Devonian (1)
-
-
Laborcita Formation (1)
-
lower Paleozoic (4)
-
Ordovician
-
Lower Ordovician
-
Fillmore Formation (5)
-
Ibexian (4)
-
Tremadocian (1)
-
-
Pogonip Group (1)
-
-
Permian
-
Cutler Formation (1)
-
Guadalupian
-
Capitanian (1)
-
-
Lower Permian
-
Leonardian (1)
-
Wolfcampian (3)
-
-
McCloud Limestone (1)
-
Meade Peak Member (2)
-
Park City Formation (3)
-
Phosphoria Formation (7)
-
Retort Phosphatic Shale Member (1)
-
Upper Permian
-
Lopingian (1)
-
Permian-Triassic boundary (5)
-
Zechstein (1)
-
-
-
Sauk Sequence (1)
-
Shoo Fly Complex (1)
-
Silurian (3)
-
Tensleep Sandstone (1)
-
upper Paleozoic
-
Admire Group (1)
-
Bakken Formation (1)
-
Calaveras Formation (1)
-
-
-
Phanerozoic (3)
-
Precambrian
-
Archean (2)
-
Chuar Group (1)
-
middle Precambrian (1)
-
Pahrump Series (1)
-
Stillwater Complex (1)
-
Uinta Mountain Group (1)
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (4)
-
Neoproterozoic
-
Tonian (1)
-
Vendian (1)
-
-
Paleoproterozoic (1)
-
Windermere System (1)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
kimberlite (1)
-
plutonic rocks
-
diabase (1)
-
diorites
-
tonalite (1)
-
-
granites
-
felsite (1)
-
granite porphyry (1)
-
muscovite granite (1)
-
two-mica granite (1)
-
-
granodiorites (3)
-
lamprophyres
-
minette (1)
-
-
pegmatite (2)
-
ultramafics
-
peridotites
-
garnet lherzolite (1)
-
spinel peridotite (1)
-
-
pyroxenite
-
websterite (1)
-
-
-
-
porphyry
-
vitrophyre (1)
-
-
volcanic rocks
-
andesites (4)
-
basalts
-
flood basalts (2)
-
olivine tholeiite (2)
-
tholeiite (1)
-
tholeiitic basalt (1)
-
-
basanite (1)
-
glasses
-
obsidian (2)
-
perlite (1)
-
volcanic glass (2)
-
-
pyroclastics
-
ash-flow tuff (4)
-
ignimbrite (14)
-
pumice (3)
-
rhyolite tuff (1)
-
tuff (15)
-
-
rhyolites
-
rhyolite porphyry (1)
-
-
tephrite (1)
-
vitrophyre (1)
-
-
-
ophiolite (4)
-
pyrolite (1)
-
volcanic ash (5)
-
-
metamorphic rocks
-
metamorphic rocks
-
amphibolites (2)
-
eclogite (5)
-
gneisses (1)
-
metaigneous rocks
-
metabasalt (1)
-
metagranite (1)
-
-
metasedimentary rocks (6)
-
metasomatic rocks
-
skarn (1)
-
-
mylonites (3)
-
phyllites (1)
-
schists
-
blueschist (1)
-
greenschist (1)
-
greenstone (1)
-
-
-
ophiolite (4)
-
turbidite (10)
-
-
minerals
-
alloys (1)
-
carbonates
-
aragonite (2)
-
calcite (2)
-
ikaite (1)
-
malachite (1)
-
-
halides
-
fluorides
-
topaz (1)
-
-
-
hydrates (2)
-
minerals (12)
-
organic minerals
-
amber (1)
-
-
oxides
-
baddeleyite (1)
-
hematite (1)
-
ilmenite (1)
-
spinel group (1)
-
-
phosphates
-
apatite (4)
-
monazite (1)
-
-
silicates
-
asbestos (1)
-
chain silicates
-
amphibole group
-
clinoamphibole
-
hornblende (2)
-
-
-
pyroxene group
-
clinopyroxene (1)
-
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
adularia (1)
-
K-feldspar (2)
-
sanidine (4)
-
-
plagioclase (3)
-
-
silica minerals
-
chalcedony (1)
-
opal (2)
-
quartz (2)
-
-
zeolite group
-
clinoptilolite (1)
-
erionite (1)
-
heulandite (1)
-
laumontite (1)
-
-
-
orthosilicates
-
nesosilicates
-
olivine group
-
olivine (1)
-
-
titanite group
-
titanite (1)
-
-
topaz (1)
-
zircon group
-
zircon (30)
-
-
-
sorosilicates
-
epidote group
-
allanite (1)
-
epidote (1)
-
-
-
-
sheet silicates
-
chlorite group
-
chlorite (1)
-
-
clay minerals
-
kaolinite (1)
-
montmorillonite (1)
-
smectite (3)
-
-
illite (4)
-
mica group
-
biotite (1)
-
muscovite (1)
-
phlogopite (1)
-
-
-
-
sulfates
-
barite (1)
-
-
sulfides
-
copper sulfides (1)
-
marcasite (1)
-
molybdenite (1)
-
-
-
Primary terms
-
absolute age (63)
-
Africa
-
East Africa
-
Kenya
-
Lake Magadi (1)
-
-
Lake Natron (1)
-
Lake Turkana (1)
-
-
East African Lakes
-
Lake Magadi (1)
-
Lake Natron (1)
-
Lake Tanganyika (1)
-
Lake Turkana (1)
-
-
North Africa
-
Algeria (1)
-
Morocco (2)
-
-
Southern Africa (1)
-
-
Antarctica (1)
-
Arctic Ocean
-
Beaufort Sea (1)
-
-
Arctic region (1)
-
Asia
-
Arabian Peninsula
-
Arabian Shield (1)
-
-
Far East
-
China
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