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Polyplacophora (3)
-
Scaphopoda (2)
-
Tentaculitida (2)
-
-
Porifera
-
Demospongea (1)
-
Stromatoporoidea (1)
-
-
Protista
-
Foraminifera
-
Fusulinina
-
Fusulinidae (3)
-
-
-
Radiolaria
-
Spumellina (1)
-
-
Tintinnidae
-
Calpionellidae (1)
-
-
-
Vermes
-
Annelida (7)
-
Chaetognatha (2)
-
Nematoida (1)
-
Phoronida (1)
-
Polychaeta (3)
-
scolecodonts (4)
-
-
-
lichens (1)
-
Metazoa (8)
-
microfossils
-
Charophyta (1)
-
Chitinozoa (5)
-
Conodonta
-
Adetognathus (1)
-
Neogondolella (1)
-
-
Fusulinina
-
Fusulinidae (3)
-
-
Leperditicopida (1)
-
problematic microfossils (7)
-
scolecodonts (4)
-
-
palynomorphs
-
acritarchs
-
Baltisphaeridium (1)
-
-
Chitinozoa (5)
-
Dinoflagellata
-
Deflandrea (1)
-
-
megaspores (4)
-
miospores
-
Classopollis (1)
-
pollen (65)
-
-
-
Plantae
-
algae
-
calcareous algae (3)
-
Chlorophyta
-
Botryococcus (1)
-
Charophyta (1)
-
Desmidiales (1)
-
Tasmanites (2)
-
-
diatoms (13)
-
nannofossils (8)
-
Rhodophyta
-
Corallinaceae
-
Lithothamnium (1)
-
-
-
-
Pteridophyta
-
Filicopsida
-
Archaeopteris (1)
-
Dicroidium (1)
-
-
Lycopsida
-
Lepidodendron (1)
-
Lycopodium (2)
-
Stigmaria (1)
-
-
Psilopsida (1)
-
Sphenopsida
-
Equisetales (1)
-
-
-
Spermatophyta
-
Angiospermae
-
Dicotyledoneae
-
Alnus (1)
-
Artemisia (1)
-
Betula (2)
-
Nothofagus (1)
-
Quercus (1)
-
-
Monocotyledoneae
-
Arecidae (1)
-
Gramineae (1)
-
-
-
Gymnospermae
-
Bennettitales (2)
-
Coniferales
-
Picea (1)
-
Pinaceae
-
Pinus (1)
-
-
Taxodiaceae
-
Metasequoia (1)
-
-
Taxodium (1)
-
Tsuga (1)
-
-
Cycadales (1)
-
Ginkgoales (1)
-
Glossopteridales
-
Glossopteris
-
Glossopteris flora (2)
-
-
-
Pteridospermae (1)
-
-
-
-
problematic fossils
-
problematic microfossils (7)
-
-
prokaryotes (1)
-
Pterobranchia (3)
-
thallophytes (5)
-
tracks (7)
-
-
geochronology methods
-
(U-Th)/He (10)
-
Ar/Ar (118)
-
exposure age (15)
-
fission-track dating (22)
-
infrared stimulated luminescence (2)
-
K/Ar (20)
-
lichenometry (1)
-
Lu/Hf (15)
-
Nd/Nd (2)
-
optical dating (1)
-
optically stimulated luminescence (20)
-
paleomagnetism (72)
-
Pb/Pb (17)
-
Pb/Th (3)
-
radiation damage (2)
-
Rb/Sr (13)
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Re/Os (6)
-
sclerochronology (1)
-
Sm/Nd (11)
-
Sr/Sr (3)
-
tephrochronology (13)
-
Th/U (5)
-
thermochronology (26)
-
thermoluminescence (2)
-
tree rings (5)
-
U/Pb (349)
-
U/Th/Pb (12)
-
uranium disequilibrium (4)
-
-
geologic age
-
Cenozoic
-
Bronze Age (3)
-
Iron Age (1)
-
lower Cenozoic (1)
-
middle Cenozoic (3)
-
Quaternary
-
Clovis (1)
-
Cordilleran ice sheet (7)
-
Holocene
-
lower Holocene (4)
-
Mesolithic (1)
-
Middle Ages (3)
-
middle Holocene (3)
-
Neoglacial
-
Little Ice Age (2)
-
-
Neolithic (1)
-
upper Holocene
-
Little Ice Age (2)
-
Roman period (5)
-
-
-
Mazama Ash (2)
-
Pleistocene
-
Bandelier Tuff (1)
-
Bishop Tuff (5)
-
Glasford Formation (1)
-
Illinoian (4)
-
Kansan (1)
-
Lake Lahontan (1)
-
Lake Missoula (6)
-
lower Pleistocene
-
Calabrian (1)
-
Gelasian (2)
-
Jaramillo Subchron (1)
-
Olduvai Subchron (2)
-
-
Matuyama Chron (3)
-
Miami Limestone (1)
-
middle Pleistocene
-
Elsterian (1)
-
-
upper Pleistocene
-
Devensian
-
upper Devensian (1)
-
-
Lake Lisan (3)
-
Lisan Formation (2)
-
Weichselian
-
Loch Lomond Stade (1)
-
Oldest Dryas (1)
-
upper Weichselian
-
Allerod (1)
-
Older Dryas (1)
-
Younger Dryas (4)
-
-
-
Wisconsinan
-
upper Wisconsinan
-
Fraser Glaciation (2)
-
-
-
-
-
upper Quaternary
-
Brunhes Chron (1)
-
Bull Lake Glaciation (1)
-
Pinedale Glaciation (1)
-
-
Zhoukoudian (1)
-
-
Sirius Group (4)
-
Stone Age
-
Mesolithic (1)
-
Neolithic (1)
-
Paleolithic (3)
-
-
Tertiary
-
Challis Volcanics (1)
-
John Day Formation (2)
-
Lincoln Creek Formation (1)
-
lower Tertiary (4)
-
middle Tertiary
-
Soda Lake Shale Member (1)
-
-
Neogene
-
Deschutes Formation (1)
-
Furnace Creek Formation (1)
-
Hemphillian (2)
-
Miocene
-
Barstovian (1)
-
Barstow Formation (1)
-
Calvert Formation (1)
-
Clarendonian (1)
-
Columbia River Basalt Group (18)
-
Grande Ronde Basalt (1)
-
lower Miocene
-
Aquitanian (1)
-
Burdigalian (2)
-
Hemingfordian (1)
-
-
middle Miocene
-
Badenian (1)
-
Langhian (1)
-
Serravallian (1)
-
-
Paintbrush Tuff (1)
-
Puerto Madryn Formation (1)
-
Saddle Mountains Basalt (1)
-
Sarmatian (1)
-
upper Miocene
-
Baynunah Formation (1)
-
Messinian
-
Messinian Salinity Crisis (1)
-
-
Modelo Formation (1)
-
Mount Messenger Formation (2)
-
Puente Formation (2)
-
Tortonian (4)
-
-
Wanapum Basalt (1)
-
-
Ogallala Formation (1)
-
Pliocene
-
lower Pliocene
-
Zanclean (2)
-
-
middle Pliocene (1)
-
upper Pliocene (7)
-
-
Ringold Formation (1)
-
upper Neogene (3)
-
-
Paleogene
-
Barail Group (1)
-
Calvert Bluff Formation (1)
-
Claron Formation (1)
-
Duchesne River Formation (1)
-
Eocene
-
Absaroka Supergroup (2)
-
Ameki Formation (1)
-
Bracklesham Group (1)
-
Chuckanut Formation (1)
-
Chumstick Formation (3)
-
Clarno Formation (1)
-
Colton Formation (1)
-
Crescent Formation (3)
-
Green River Formation (6)
-
Lake Uinta (1)
-
lower Eocene
-
Willwood Formation (2)
-
Wind River Formation (1)
-
Ypresian
-
London Clay (2)
-
-
-
middle Eocene
-
Aycross Formation (1)
-
Carrizo Sand (1)
-
Lutetian (4)
-
Tyee Formation (1)
-
-
Mirador Formation (1)
-
Ootsa Lake Group (1)
-
Parachute Creek Member (1)
-
Swauk Formation (3)
-
upper Eocene
-
Chadronian (1)
-
Dry Branch Formation (1)
-
La Meseta Formation (1)
-
Moodys Branch Formation (1)
-
Poway Conglomerate (1)
-
Twiggs Clay (1)
-
Uinta Formation (1)
-
Yazoo Clay (1)
-
-
-
Flagstaff Formation (1)
-
Huber Formation (1)
-
Imo Shale (1)
-
lower Paleogene (1)
-
Oligocene
-
Boom Clay (2)
-
Creede Formation (1)
-
lower Oligocene (6)
-
middle Oligocene
-
Byram Formation (1)
-
Marianna Limestone (1)
-
-
upper Oligocene (9)
-
-
Orca Group (1)
-
Paleocene
-
lower Paleocene
-
Danian (8)
-
K-T boundary (4)
-
-
middle Paleocene
-
Selandian (2)
-
-
Nacimiento Formation (1)
-
Ravenscrag Formation (1)
-
Tullock Member (1)
-
upper Paleocene
-
Thanetian (1)
-
-
-
Paleocene-Eocene Thermal Maximum (2)
-
Renova Formation (1)
-
Sespe Formation (2)
-
Tyonek Formation (1)
-
Wasatch Formation (1)
-
White River Group (1)
-
Wilcox Group (2)
-
-
Shahejie Formation (2)
-
upper Tertiary
-
Poznan Clays (1)
-
-
Vaqueros Formation (1)
-
-
Tulare Formation (1)
-
upper Cenozoic
-
Pico Formation (2)
-
Tamiami Formation (1)
-
-
Yakataga Formation (1)
-
-
Dalradian (16)
-
Lake Bonneville (2)
-
Laurentide ice sheet (9)
-
Mesozoic
-
Condrey Mountain Schist (1)
-
Cretaceous
-
Blairmore Group (5)
-
Colorado Group (1)
-
Comanchean
-
Antlers Sands (1)
-
Buda Limestone (1)
-
Travis Peak Formation (1)
-
Trinity Group (1)
-
-
Dakota Formation (1)
-
Kuskokwim Group (2)
-
Lower Cretaceous
-
Albian
-
lower Albian (1)
-
-
Antlers Sands (1)
-
Aptian
-
lower Aptian (1)
-
Shuaiba Formation (2)
-
-
Barremian (5)
-
Berriasian (2)
-
Cadomin Formation (1)
-
Christopher Formation (1)
-
Clearwater Formation (2)
-
Crato Formation (1)
-
Gault Clay (1)
-
Gething Formation (2)
-
Kootenay Formation (2)
-
Mannville Group (3)
-
McMurray Formation (7)
-
Neocomian (1)
-
Spirit River Formation (2)
-
Travis Peak Formation (1)
-
Trinity Group (1)
-
Valanginian (2)
-
-
Mancos Shale (5)
-
Middle Cretaceous (17)
-
Mishash Formation (1)
-
Natih Formation (2)
-
Potomac Group (1)
-
Queen Charlotte Group (1)
-
Upper Cretaceous
-
Bagh Beds (1)
-
Belly River Formation (3)
-
Blackhawk Formation (6)
-
Buda Limestone (1)
-
Campanian
-
Dinosaur Park Formation (2)
-
lower Campanian (2)
-
upper Campanian (1)
-
-
Cardium Formation (2)
-
Castlegate Sandstone (1)
-
Cenomanian
-
Dunvegan Formation (2)
-
upper Cenomanian (1)
-
-
Coniacian (3)
-
Edmonton Group (2)
-
Ferron Sandstone Member (2)
-
Frontier Formation (2)
-
Gulfian
-
Austin Chalk (1)
-
Eagle Ford Formation (1)
-
-
Hell Creek Formation (1)
-
Hornbrook Formation (1)
-
Horseshoe Canyon Formation (3)
-
Judith River Formation (2)
-
Kanguk Formation (1)
-
K-T boundary (4)
-
Lance Formation (2)
-
Maestrichtian
-
lower Maestrichtian (1)
-
upper Maestrichtian (4)
-
-
Mesaverde Group (3)
-
Moreno Formation (1)
-
Neuquen Group (2)
-
Niobrara Formation (1)
-
Oldman Formation (4)
-
Pierre Shale (2)
-
Rosario Formation (1)
-
Saint Mary River Formation (1)
-
Santonian (3)
-
Senonian (19)
-
Star Point Sandstone (1)
-
Straight Cliffs Formation (1)
-
Tuolumne Intrusive Suite (7)
-
Turonian
-
lower Turonian (1)
-
-
Two Medicine Formation (6)
-
Wahweap Formation (1)
-
Williams Fork Formation (1)
-
-
Valdez Group (1)
-
-
Franciscan Complex (8)
-
Glen Canyon Group (1)
-
Great Valley Sequence (6)
-
Jurassic
-
Arapien Shale (1)
-
Aztec Sandstone (1)
-
Carmel Formation (2)
-
Coast Range Ophiolite (2)
-
Fernie Formation (5)
-
Ferrar Group (8)
-
Heather Formation (1)
-
Kirkpatrick Basalt (3)
-
Lower Jurassic
-
Dunlin Group (1)
-
East Berlin Formation (1)
-
middle Liassic (1)
-
Nordegg Member (1)
-
Pliensbachian (4)
-
Portland Formation (1)
-
Toarcian (7)
-
upper Liassic (3)
-
-
Middle Jurassic
-
Aalenian (2)
-
Bajocian
-
Brent Group (1)
-
Tarbert Formation (1)
-
-
Bathonian (3)
-
Callovian (4)
-
Dogger (1)
-
Page Sandstone (1)
-
Walloon Coal Measures (1)
-
-
Opalinus Clay (1)
-
Oxford Clay (3)
-
San Rafael Group (1)
-
Solnhofen Limestone (1)
-
Upper Jurassic
-
Arab Formation (1)
-
Bowser Lake Group (4)
-
Buckner Formation (1)
-
Entrada Sandstone (2)
-
Fulmar Formation (1)
-
Hanifa Formation (2)
-
Jeanne d'Arc Formation (1)
-
Josephine Ophiolite (1)
-
Kimmeridge Clay (2)
-
Kimmeridgian (2)
-
Morrison Formation (4)
-
Naknek Formation (1)
-
Oxfordian
-
lower Oxfordian (1)
-
-
Portlandian (2)
-
Salt Wash Sandstone Member (1)
-
Smackover Formation (2)
-
Sundance Formation (1)
-
Tithonian (2)
-
Volgian (1)
-
-
-
Kayenta Formation (1)
-
lower Mesozoic (1)
-
Maiolica Limestone (1)
-
Mist Mountain Formation (2)
-
Navajo Sandstone (3)
-
Newark Supergroup (2)
-
Orocopia Schist (2)
-
Serra Geral Formation (1)
-
Triassic
-
Fremouw Formation (2)
-
Lower Triassic
-
Bunter
-
Voltzia Sandstone (1)
-
-
Griesbachian (1)
-
Permian-Triassic boundary (12)
-
Smithian (1)
-
-
Middle Triassic
-
Anisian (2)
-
Doig Formation (1)
-
-
Moenkopi Formation (4)
-
Montney Formation (3)
-
Narrabeen Group (1)
-
Sherwood Sandstone (1)
-
Upper Triassic
-
Carnian
-
Ischigualasto Formation (1)
-
-
Chinle Formation (5)
-
Dockum Group (1)
-
Mercia Mudstone (1)
-
Norian (5)
-
Rhaetian
-
Penarth Group (1)
-
-
-
-
upper Mesozoic
-
Yixian Formation (1)
-
-
Vaca Muerta Formation (1)
-
Wingate Sandstone (1)
-
Yanshanian (1)
-
-
MIS 2 (3)
-
MIS 3 (1)
-
MIS 5 (2)
-
MIS 6 (1)
-
MIS 7 (1)
-
Paleozoic
-
Berea Sandstone (1)
-
Cambrian
-
Acadian (1)
-
Carrara Formation (1)
-
Conasauga Group (2)
-
Kanmantoo Group (2)
-
Lower Cambrian
-
Chilhowee Group (3)
-
Kinzers Formation (1)
-
Poleta Formation (1)
-
Terreneuvian
-
Fortunian (3)
-
-
Tommotian (1)
-
-
Middle Cambrian
-
Burgess Shale (17)
-
Flathead Sandstone (2)
-
Marjum Formation (4)
-
Wheeler Formation (5)
-
-
Pioche Shale (5)
-
Upper Cambrian
-
Eau Claire Formation (1)
-
Furongian
-
Paibian (1)
-
-
Goldenville Formation (2)
-
Mount Simon Sandstone (4)
-
Potsdam Sandstone (3)
-
Steptoean (1)
-
-
-
Carboniferous
-
Jackfork Group (1)
-
Johns Valley Formation (1)
-
Lower Carboniferous
-
Dinantian (13)
-
-
Mississippian
-
Borden Group (2)
-
Lower Mississippian
-
Cuyahoga Formation (2)
-
Kinderhookian
-
Banff Formation (2)
-
-
Lodgepole Formation (2)
-
Osagian
-
Burlington Limestone (1)
-
Keokuk Limestone (1)
-
-
Pocono Formation (1)
-
Tournaisian (5)
-
-
Madison Group (3)
-
Middle Mississippian
-
Visean (9)
-
-
Rampart Group (1)
-
Redwall Limestone (1)
-
Upper Mississippian
-
Bangor Limestone (1)
-
Chesterian (1)
-
Mauch Chunk Formation (2)
-
Meramecian
-
Salem Limestone (1)
-
-
Serpukhovian (3)
-
-
Windsor Group (2)
-
-
Namurian (2)
-
Pennsylvanian
-
Conemaugh Group (4)
-
Cumberland Group (1)
-
Joggins Formation (1)
-
Lower Pennsylvanian
-
Bashkirian (3)
-
Morrowan (3)
-
-
Middle Pennsylvanian
-
Allegheny Group (4)
-
Atokan
-
Atoka Formation (1)
-
-
Carbondale Formation (2)
-
Desmoinesian (2)
-
Moscovian (1)
-
-
Minturn Formation (1)
-
Monongahela Group (3)
-
Pittsburgh Coal (1)
-
Pottsville Group (2)
-
Upper Pennsylvanian
-
Ames Limestone (1)
-
Glenshaw Formation (2)
-
Gzhelian (2)
-
Kasimovian (1)
-
Missourian
-
Kansas City Group (1)
-
-
-
-
Upper Carboniferous
-
Millstone Grit (1)
-
Westphalian (3)
-
-
Wahoo Limestone (1)
-
-
Catskill Formation (2)
-
Cow Head Group (4)
-
Deadwood Formation (1)
-
Devonian
-
Beaverhill Lake Group (3)
-
Guilmette Formation (1)
-
Heemskirk Granite (3)
-
Lower Devonian
-
Emsian (5)
-
Gedinnian (2)
-
Lochkovian (1)
-
Siegenian (1)
-
-
Middle Devonian
-
Eifelian (6)
-
Elk Point Group (3)
-
Givetian (5)
-
Hamilton Group (2)
-
Mahantango Formation (3)
-
Marcellus Shale (4)
-
Onondaga Limestone (3)
-
Prairie Evaporite (1)
-
Sulphur Point Formation (1)
-
Winnipegosis Formation (1)
-
-
Millboro Shale (1)
-
Old Red Sandstone (11)
-
Slave Point Formation (1)
-
Swan Hills Formation (1)
-
Upper Devonian
-
Brallier Shale (1)
-
Duperow Formation (1)
-
Famennian
-
lower Famennian (1)
-
upper Famennian (1)
-
-
Frasnian
-
Leduc Formation (3)
-
-
Hampshire Formation (1)
-
Jefferson Group (2)
-
Ohio Shale (1)
-
Palliser Formation (2)
-
-
Waterways Formation (1)
-
-
Dunkard Group (4)
-
Exshaw Formation (1)
-
Hartland Formation (1)
-
Helderberg Group (1)
-
Horton Group (2)
-
Ishbel Group (2)
-
Itarare Subgroup (1)
-
Keyser Limestone (1)
-
Knox Group (3)
-
Leinster Granite (1)
-
Lisburne Group (1)
-
lower Paleozoic
-
Ashe Formation (2)
-
Bay of Islands Ophiolite (1)
-
Cape Phillips Formation (2)
-
Conococheague Formation (1)
-
Wilmington Complex (1)
-
-
Maroon Formation (1)
-
Matapedia Group (1)
-
middle Paleozoic (5)
-
New Albany Shale (1)
-
Ordovician
-
Antelope Valley Limestone (1)
-
Betts Cove Ophiolite (1)
-
Eureka Quartzite (1)
-
Lower Ordovician
-
Arenigian
-
Ballantrae Complex (1)
-
-
Ellenburger Group (1)
-
Floian (1)
-
Prairie du Chien Group (1)
-
Saint George Group (2)
-
Tremadocian
-
Halifax Formation (1)
-
-
-
Lushs Bight Group (1)
-
Martinsburg Formation (3)
-
Meguma Group (1)
-
Middle Ordovician
-
Ammonoosuc Volcanics (1)
-
Bromide Formation (1)
-
Darriwilian (10)
-
Llanvirnian (2)
-
Saint Peter Sandstone (1)
-
-
Skiddaw Slates (1)
-
Tetagouche Group (1)
-
Upper Ordovician
-
Caradocian
-
Borrowdale Volcanic Group (5)
-
-
Cincinnatian (1)
-
Hirnantian (1)
-
Juniata Formation (1)
-
Katian (5)
-
Kope Formation (1)
-
Red River Formation (2)
-
Sandbian (5)
-
Trentonian (1)
-
-
Utica Shale (2)
-
Valmy Formation (1)
-
Wild Bight Group (1)
-
-
Permian
-
Castile Formation (1)
-
Cutler Formation (3)
-
Ecca Group (2)
-
Gharif Formation (2)
-
Guadalupian
-
Capitanian (1)
-
Roadian (2)
-
Seven Rivers Formation (1)
-
Tansill Formation (1)
-
Wordian (2)
-
-
Kaibab Formation (1)
-
Khuff Formation (1)
-
Lower Permian
-
Al Khlata Formation (2)
-
Barakar Stage (1)
-
Cisuralian
-
Artinskian (3)
-
Asselian (3)
-
Kungurian (1)
-
Sakmarian (4)
-
-
Leonardian (2)
-
Wichita Group (1)
-
Wolfcampian (3)
-
-
Lyons Sandstone (1)
-
Maokou Formation (1)
-
Middle Permian (3)
-
Newcastle Coal Measures (1)
-
Park City Formation (1)
-
Ranger Canyon Formation (2)
-
Unayzah Formation (3)
-
Upper Permian
-
Lopingian
-
Changhsingian (1)
-
Wuchiapingian (1)
-
-
Permian-Triassic boundary (12)
-
Raniganj Formation (1)
-
Rio do Rasto Formation (1)
-
Zechstein (2)
-
-
Wellington Formation (1)
-
Whitehill Formation (1)
-
Yates Formation (1)
-
-
Road River Formation (3)
-
Sauk Sequence (3)
-
Shawangunk Formation (1)
-
Shoo Fly Complex (1)
-
Silurian
-
Lockport Formation (1)
-
Lower Silurian
-
Grimsby Sandstone (2)
-
Llandovery
-
Aberystwyth Grits (1)
-
-
Tuscarora Formation (4)
-
Wenlock (9)
-
Whirlpool Sandstone (1)
-
-
Middle Silurian
-
Clinton Group (1)
-
Guelph Formation (1)
-
-
Niagaran (2)
-
Upper Silurian
-
Cayugan
-
Tonoloway Limestone (1)
-
-
Ludlow (4)
-
Pridoli (3)
-
Salina Group (2)
-
-
-
Supai Formation (1)
-
Tippecanoe Sequence (1)
-
upper Paleozoic
-
Bakken Formation (1)
-
Copacabana Group (1)
-
Fountain Formation (2)
-
Kaskaskia Sequence (3)
-
Tirrawarra Sandstone (1)
-
-
Wissahickon Formation (2)
-
Woodford Shale (1)
-
-
Phanerozoic (18)
-
Precambrian
-
Archean
-
Blake River Group (1)
-
Bulawayan Group (1)
-
Eoarchean (1)
-
Fig Tree Group (1)
-
Mesoarchean (4)
-
Neoarchean
-
Dharwar Supergroup (1)
-
Sargur Group (1)
-
-
Paleoarchean (10)
-
Warrawoona Group (3)
-
-
Baltimore Gneiss (2)
-
Brockman Iron Formation (1)
-
Carrizo Mountain Formation (1)
-
Catoctin Formation (1)
-
Chuar Group (2)
-
Cuddapah System (1)
-
Delhi Supergroup (2)
-
Fortescue Group (1)
-
Great Smoky Group (1)
-
Hadean (6)
-
Hamersley Group (1)
-
Lewisian Complex (3)
-
Noonday Dolomite (1)
-
North Shore Volcanics (1)
-
Pahrump Series (1)
-
Prince Albert Group (1)
-
Purcell System (4)
-
Stillwater Complex (4)
-
Stirling Quartzite (3)
-
Transvaal Supergroup (1)
-
Uinta Mountain Group (2)
-
upper Precambrian
-
Proterozoic
-
Adelaidean (1)
-
Dedham Granodiorite (1)
-
Huronian
-
Onaping Formation (1)
-
-
Isan Orogeny (1)
-
Keweenawan
-
Copper Harbor Conglomerate (1)
-
-
Lewisian (1)
-
Mesoproterozoic
-
Aldridge Formation (1)
-
Altyn Limestone (1)
-
Belt Supergroup (5)
-
Calymmian (1)
-
Missoula Group (1)
-
Ravalli Group (1)
-
Roper Group (1)
-
-
Miette Group (2)
-
Neoproterozoic
-
Blaini Formation (1)
-
Brioverian (1)
-
Burra Group (1)
-
Cryogenian (5)
-
Dengying Formation (1)
-
Doushantuo Formation (1)
-
Ediacaran (48)
-
Hadrynian (1)
-
Lynchburg Formation (1)
-
Marinoan (1)
-
Sturtian (7)
-
Tonian (5)
-
Torridonian (3)
-
Vendian (13)
-
-
Oronto Group (1)
-
Paleoproterozoic
-
Aphebian
-
Hurwitz Group (1)
-
-
Birimian (3)
-
Cobalt Group (1)
-
Orosirian (1)
-
Rhyacian (1)
-
Statherian (1)
-
-
Pocatello Formation (3)
-
Roan Supergroup (1)
-
Sinian
-
Dengying Formation (1)
-
Doushantuo Formation (1)
-
-
Tapley Hill Formation (1)
-
Umberatana Group (1)
-
Windermere System (4)
-
-
-
Ventersdorp Supergroup (2)
-
Witwatersrand Supergroup (2)
-
-
Rhenohercynian (1)
-
Saxothuringian (1)
-
Vindhyan (4)
-
-
igneous rocks
-
extrusive rocks (7)
-
igneous rocks
-
carbonatites (8)
-
feldspathoid rocks (1)
-
granophyre (2)
-
hypabyssal rocks (2)
-
kimberlite (17)
-
peperite (2)
-
picrite (7)
-
plutonic rocks
-
anorthosite (10)
-
diabase (14)
-
diorites
-
diorite porphyry (1)
-
plagiogranite (1)
-
quartz diorites (5)
-
tonalite (16)
-
trondhjemite (5)
-
-
gabbros
-
norite (4)
-
troctolite (5)
-
-
granites
-
alkali granites (2)
-
aplite (4)
-
A-type granites (4)
-
charnockite (2)
-
felsite (1)
-
granite porphyry (3)
-
I-type granites (5)
-
leucogranite (10)
-
monzogranite (4)
-
S-type granites (3)
-
-
granodiorites (16)
-
ijolite (1)
-
lamproite (4)
-
lamprophyres
-
minette (1)
-
-
monzodiorite (1)
-
monzonites (2)
-
pegmatite (22)
-
syenites
-
albitite (2)
-
nepheline syenite
-
agpaite (2)
-
-
quartz syenite (2)
-
shonkinite (1)
-
-
ultramafics
-
chromitite (4)
-
peridotites
-
dunite (5)
-
harzburgite (5)
-
spinel lherzolite (2)
-
-
pyroxenite
-
clinopyroxenite (1)
-
websterite (1)
-
-
-
-
porphyry
-
vitrophyre (2)
-
-
volcanic rocks
-
adakites (7)
-
andesites
-
andesite porphyry (1)
-
boninite (1)
-
-
basalts
-
alkali basalts
-
alkali olivine basalt (1)
-
hawaiite (2)
-
mugearite (1)
-
spilite (1)
-
trachybasalts (1)
-
-
flood basalts (30)
-
mare basalts (1)
-
mid-ocean ridge basalts (15)
-
ocean-island basalts (9)
-
oceanite (1)
-
shoshonite (3)
-
tholeiite (9)
-
tholeiitic basalt (8)
-
trap rocks (3)
-
-
basanite
-
ankaramite (2)
-
-
benmoreite (1)
-
dacites (13)
-
glasses
-
obsidian (2)
-
palagonite (2)
-
pitchstone (1)
-
volcanic glass (6)
-
-
keratophyre
-
quartz keratophyre (1)
-
-
komatiite (9)
-
latite (1)
-
nephelinite (2)
-
phonolites (5)
-
pyroclastics
-
ash-flow tuff (5)
-
hyaloclastite (5)
-
ignimbrite (37)
-
pumice (9)
-
rhyolite tuff (3)
-
scoria (6)
-
tuff (56)
-
tuffite (1)
-
welded tuff (2)
-
-
rhyodacites (5)
-
rhyolites (44)
-
trachyandesites (2)
-
trachytes (10)
-
vitrophyre (2)
-
-
-
ophiolite (31)
-
volcanic ash (13)
-
-
metamorphic rocks
-
K-bentonite (3)
-
metamorphic rocks
-
amphibolites (8)
-
cataclasites (3)
-
eclogite (7)
-
gneisses
-
augen gneiss (5)
-
granite gneiss (5)
-
orthogneiss (10)
-
paragneiss (9)
-
-
granulites (7)
-
hornfels (4)
-
impactites
-
impact breccia
-
lunar breccia (1)
-
-
-
lapis lazuli (2)
-
marbles (13)
-
metacarbonate rocks (2)
-
metaigneous rocks
-
metabasalt (7)
-
metadiabase (1)
-
metagabbro (4)
-
metagranite (3)
-
metarhyolite (1)
-
serpentinite (5)
-
-
metaplutonic rocks (2)
-
metasedimentary rocks
-
metaconglomerate (2)
-
metagraywacke (2)
-
metalimestone (1)
-
metapelite (8)
-
metasandstone (1)
-
paragneiss (9)
-
-
metasomatic rocks
-
apogranite (1)
-
fenite (1)
-
greisen (4)
-
propylite (1)
-
rodingite (1)
-
serpentinite (5)
-
skarn (10)
-
-
metavolcanic rocks (14)
-
migmatites (10)
-
mylonites
-
pseudotachylite (5)
-
-
phyllites (4)
-
quartzites (20)
-
schists
-
blueschist (2)
-
greenschist (2)
-
greenstone (4)
-
tourmalinite (1)
-
-
slates (4)
-
-
ophiolite (31)
-
turbidite (55)
-
-
meteorites
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meteorites
-
micrometeorites (1)
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Northwest Africa Meteorites (1)
-
stony meteorites
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achondrites
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aubrite (1)
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diogenite (1)
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eucrite (1)
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howardite (1)
-
lunar meteorites (3)
-
Martian meteorites
-
SNC Meteorites
-
chassignite (1)
-
nakhlite (1)
-
shergottite (1)
-
-
-
-
chondrites
-
enstatite chondrites (1)
-
ordinary chondrites
-
L chondrites (1)
-
-
-
-
-
-
minerals
-
alloys
-
awaruite (2)
-
carbides
-
cohenite (1)
-
moissanite (3)
-
-
nitrides (1)
-
phosphides (1)
-
silicides (2)
-
-
arsenates (2)
-
arsenides
-
arsenopyrite (1)
-
lollingite (1)
-
nickeline (1)
-
rammelsbergite (1)
-
skutterudite (1)
-
sperrylite (2)
-
-
arsenites (1)
-
bismuthides (1)
-
borates
-
colemanite (1)
-
szaibelyite (1)
-
-
carbonates
-
aragonite (8)
-
azurite (3)
-
calcite (41)
-
cancrinite (1)
-
dolomite (13)
-
hydrotalcite (1)
-
magnesian calcite (2)
-
magnesite (1)
-
malachite (2)
-
rhodochrosite (1)
-
siderite (2)
-
vaterite (1)
-
-
halides
-
bromides (2)
-
chlorides
-
atacamite (1)
-
halite (7)
-
-
fluorides
-
fluorite (1)
-
humite (1)
-
topaz (1)
-
triplite (1)
-
-
-
hydrates (4)
-
iron minerals (2)
-
K-bentonite (3)
-
minerals (18)
-
native elements
-
diamond (7)
-
graphite (3)
-
lonsdaleite (1)
-
-
nitrates (3)
-
organic minerals
-
amber (8)
-
-
oxalates
-
weddellite (1)
-
whewellite (1)
-
-
oxides
-
baddeleyite (4)
-
brannerite (1)
-
brucite (1)
-
cassiterite (7)
-
chrome spinel (4)
-
chromite (9)
-
chrysoberyl (1)
-
corundum (7)
-
ferrihydrite (4)
-
ferropericlase (2)
-
gibbsite (2)
-
goethite (9)
-
hematite (16)
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hibonite (1)
-
hoegbomite (1)
-
hydroxides
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iron hydroxides (1)
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oxyhydroxides (1)
-
schoepite (1)
-
-
ilmenite (8)
-
iron oxides (16)
-
lepidocrocite (1)
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limonite (1)
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magnesioferrite (1)
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magnetite (5)
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manganese oxides (4)
-
martite (1)
-
niobates
-
columbite (2)
-
-
psilomelane (1)
-
pyrolusite (1)
-
rutile (5)
-
sapphire (5)
-
spinel (8)
-
spinel group (4)
-
tantalates
-
tantalite (1)
-
-
thorianite (1)
-
titanium oxides (1)
-
todorokite (2)
-
uraninite (3)
-
zirconolite (1)
-
-
phosphates
-
apatite (36)
-
barbosalite (1)
-
crandallite (1)
-
fluorapatite (2)
-
francolite (1)
-
graftonite (2)
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hureaulite (2)
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hydroxylapatite (1)
-
lazulite (1)
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lithiophilite (2)
-
merrillite (1)
-
monazite (26)
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plumbogummite (1)
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rockbridgeite (1)
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sarcopside (1)
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strengite (1)
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struvite (1)
-
triphylite (3)
-
triplite (1)
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turquoise (2)
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vivianite (1)
-
xenotime (3)
-
-
platinum minerals (6)
-
selenides (3)
-
silicates
-
asbestos (3)
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borosilicates (4)
-
chain silicates
-
aenigmatite group
-
sapphirine (1)
-
-
amphibole group
-
alkalic amphibole (1)
-
clinoamphibole
-
actinolite (1)
-
crocidolite (1)
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glaucophane (1)
-
hastingsite (3)
-
hornblende (16)
-
kaersutite (2)
-
pargasite (3)
-
tremolite (1)
-
-
-
prehnite (1)
-
pyroxene group
-
clinopyroxene
-
aegirine (3)
-
augite (1)
-
diopside (2)
-
hedenbergite (1)
-
pigeonite (1)
-
-
orthopyroxene
-
enstatite (2)
-
-
-
wollastonite group
-
wollastonite (1)
-
-
-
feldspathoids (1)
-
framework silicates
-
cancrinite (1)
-
feldspar group
-
alkali feldspar
-
adularia (1)
-
anorthoclase (2)
-
celsian (1)
-
K-feldspar (4)
-
microcline (2)
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orthoclase (1)
-
sanidine (4)
-
-
barium feldspar
-
celsian (1)
-
-
plagioclase
-
albite (2)
-
anorthite (3)
-
bytownite (1)
-
-
-
leucite (2)
-
nepheline group
-
kalsilite (1)
-
nepheline (4)
-
-
scapolite group
-
scapolite (3)
-
-
silica minerals
-
agate (1)
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amethyst (1)
-
carnelian (1)
-
chalcedony (2)
-
coesite (4)
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cristobalite (2)
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jasper (1)
-
moganite (2)
-
opal
-
opal-A (5)
-
-
quartz (44)
-
stishovite (1)
-
tridymite (1)
-
-
sodalite group
-
lazurite (1)
-
sodalite (4)
-
-
zeolite group
-
analcime (2)
-
chabazite (1)
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edingtonite (1)
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erionite (1)
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faujasite (1)
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garronite (1)
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gmelinite (3)
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heulandite (2)
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laumontite (2)
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mesolite (2)
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mordenite (1)
-
natrolite (2)
-
phillipsite (2)
-
pollucite (2)
-
roggianite (1)
-
scolecite (1)
-
thomsonite (1)
-
wairakite (2)
-
yugawaralite (1)
-
-
-
orthosilicates
-
nesosilicates
-
andalusite (1)
-
datolite group
-
datolite (1)
-
gadolinite (1)
-
-
euclase (1)
-
garnet group
-
almandine (1)
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grossular (1)
-
hydrogarnet (1)
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pyrope (2)
-
spessartine (1)
-
-
grandidierite (2)
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humite (1)
-
mullite (1)
-
olivine group
-
fayalite (4)
-
forsterite (3)
-
olivine (21)
-
-
sillimanite (2)
-
staurolite (1)
-
titanite group
-
titanite (9)
-
-
topaz (1)
-
zircon group
-
coffinite (2)
-
thorite (1)
-
zircon (305)
-
-
-
sorosilicates
-
bertrandite (1)
-
chevkinite group
-
chevkinite (1)
-
perrierite (1)
-
-
epidote group
-
allanite (1)
-
epidote (3)
-
-
lawsonite (1)
-
vesuvianite (1)
-
-
-
ring silicates
-
beryl (3)
-
cordierite (2)
-
emerald (2)
-
tourmaline group
-
buergerite (1)
-
dravite (4)
-
elbaite (3)
-
foitite (2)
-
schorl (4)
-
uvite (1)
-
-
-
sheet silicates
-
chlorite group
-
chlorite (15)
-
-
clay minerals
-
beidellite (2)
-
chrysocolla (1)
-
dickite (1)
-
halloysite (3)
-
imogolite (1)
-
kaolinite (23)
-
metahalloysite (1)
-
montmorillonite (7)
-
nontronite (5)
-
saponite (1)
-
smectite (29)
-
vermiculite (1)
-
-
corrensite (1)
-
illite (28)
-
mica group
-
biotite (17)
-
glauconite (2)
-
lepidolite (1)
-
muscovite (26)
-
phlogopite (4)
-
-
palygorskite (2)
-
petalite (1)
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pyrophyllite (1)
-
sericite (1)
-
serpentine group
-
berthierine (2)
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chrysotile (3)
-
cronstedtite (2)
-
serpentine (7)
-
-
talc (2)
-
-
-
sulfates
-
alum (1)
-
alunite (3)
-
anglesite (1)
-
anhydrite (8)
-
barite (6)
-
bassanite (1)
-
brochantite (1)
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epsomite (1)
-
gypsum (13)
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halotrichite (1)
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iron sulfates (1)
-
jarosite (5)
-
lazurite (1)
-
natroalunite (1)
-
posnjakite (1)
-
voltaite (1)
-
-
sulfides
-
acanthite (1)
-
alabandite (1)
-
alloclasite (1)
-
argentite (1)
-
arsenopyrite (1)
-
chalcopyrite (6)
-
cinnabar (2)
-
cooperite (2)
-
copper sulfides (3)
-
covellite (1)
-
cubanite (1)
-
galena (6)
-
greenockite (1)
-
heazlewoodite (1)
-
iron sulfides (2)
-
laurite (1)
-
lazurite (1)
-
metacinnabar (1)
-
molybdenite (1)
-
nickel sulfides (2)
-
niningerite (1)
-
oldhamite (1)
-
pentlandite (4)
-
pyrite (20)
-
pyrrhotite (6)
-
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Paleozoic
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Upper Carboniferous
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Devonian
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Waterways Formation (1)
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Lower Permian
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Permian-Triassic boundary (12)
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Silurian
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Lower Silurian
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Grimsby Sandstone (2)
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Llandovery
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Supai Formation (1)
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upper Paleozoic
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Wissahickon Formation (2)
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Plantae
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Pteridophyta
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Filicopsida
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Baltimore Gneiss (2)
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Transvaal Supergroup (1)
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upper Precambrian
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Proterozoic
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Isan Orogeny (1)
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Mesoproterozoic
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Neoproterozoic
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Oronto Group (1)
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Paleoproterozoic
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Hurwitz Group (1)
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Birimian (3)
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Pocatello Formation (3)
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Roan Supergroup (1)
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Sinian
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Dengying Formation (1)
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Doushantuo Formation (1)
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Tapley Hill Formation (1)
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Umberatana Group (1)
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Windermere System (4)
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Ventersdorp Supergroup (2)
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Steens Mountain (1)
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Hood River County Oregon (4)
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Jackson County Oregon (2)
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Jefferson County Oregon (1)
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Josephine County Oregon (1)
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Klamath County Oregon
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Mount Mazama (2)
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Lake County Oregon (1)
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Lane County Oregon (1)
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Morrow County Oregon (1)
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Mount Hood (3)
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Multnomah County Oregon
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Portland Oregon (1)
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Rogue River (1)
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Umatilla County Oregon (2)
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Union County Oregon (1)
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Wallowa County Oregon (2)
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Wallowa Mountains (2)
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Willamette River (1)
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Willamette Valley (2)
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Ouachita Mountains (2)
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Ozark Mountains (3)
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Pennsylvania
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Adams County Pennsylvania (2)
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Allegheny County Pennsylvania
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Pittsburgh Pennsylvania (3)
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Blair County Pennsylvania (1)
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Cambria County Pennsylvania (1)
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Centre County Pennsylvania (1)
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Clinton County Pennsylvania (1)
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Columbia County Pennsylvania (1)
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Dauphin County Pennsylvania
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Harrisburg Pennsylvania (1)
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Mifflin County Pennsylvania (1)
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Monroe County Pennsylvania (1)
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Philadelphia County Pennsylvania
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Philadelphia Pennsylvania (1)
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Potter County Pennsylvania (1)
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Somerset County Pennsylvania (1)
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Union County Pennsylvania (1)
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Washington County Pennsylvania (1)
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Pine Mountain Window (1)
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Potomac River (2)
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Powder River basin (2)
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Savannah River (1)
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Sevier orogenic belt (7)
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Shenandoah Valley (1)
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South Carolina
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Aiken County South Carolina (2)
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Barnwell County South Carolina (2)
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Charleston County South Carolina
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Charleston South Carolina (2)
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Horry County South Carolina (1)
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Oconee County South Carolina (1)
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Pickens County South Carolina (1)
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Santee River (1)
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Savannah River Site (5)
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South Dakota
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Badlands National Park (1)
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Custer County South Dakota (1)
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Lawrence County South Dakota (2)
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Southwestern U.S. (10)
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Susquehanna River (1)
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Tennessee
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Blount County Tennessee (1)
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Claiborne County Tennessee (1)
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Grainger County Tennessee (1)
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Hamilton County Tennessee (1)
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Oak Ridge National Laboratory (2)
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Roane County Tennessee (1)
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Sequatchie County Tennessee (1)
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Sullivan County Tennessee (1)
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Washington County Tennessee (2)
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Texas
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Amarillo Uplift (1)
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Archer County Texas (1)
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Bastrop County Texas (1)
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Baylor County Texas (1)
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Brewster County Texas
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Big Bend National Park (1)
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Burleson County Texas (1)
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Chambers County Texas (1)
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East Texas (1)
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East Texas Basin (1)
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East Texas Field (1)
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El Paso County Texas
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El Paso Texas (1)
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Galveston Bay (1)
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Galveston County Texas
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Galveston Island (1)
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Hudspeth County Texas (1)
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Jim Wells County Texas (1)
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Kleberg County Texas (1)
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McLennan County Texas
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Waco Texas (1)
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Midland Basin (1)
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Montague County Texas (1)
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Nueces County Texas (1)
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Reeves County Texas (1)
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San Saba County Texas (1)
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West Texas (2)
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Wichita County Texas (1)
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U. S. Rocky Mountains
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Absaroka Range
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Beartooth Mountains (3)
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Bitterroot Range (1)
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Gore Range (1)
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Gravelly Range (1)
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Medicine Bow Mountains (1)
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San Juan Mountains (5)
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Sangre de Cristo Mountains (3)
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Sawatch Range (2)
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Tobacco Root Mountains (1)
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Uinta Mountains (3)
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Wasatch Range (4)
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Wet Mountains (1)
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Wind River Range (1)
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Uinta Basin (3)
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Uncompahgre Uplift (1)
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Utah
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Box Elder County Utah (4)
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Cache County Utah (2)
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Canyonlands National Park (2)
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Drum Mountains (1)
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Duchesne County Utah (1)
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Emery County Utah (3)
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Garfield County Utah (3)
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Grand County Utah (4)
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Grand Staircase-Escalante National Monument (1)
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Great Salt Lake (1)
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Henry Mountains (3)
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Juab County Utah (3)
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Millard County Utah
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House Range (8)
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Oquirrh Mountains (1)
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Salt Lake County Utah (1)
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San Juan County Utah (9)
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Sanpete County Utah (2)
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Sevier County Utah (3)
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Summit County Utah (1)
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Tooele County Utah (2)
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Uintah County Utah (5)
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Utah County Utah
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Provo Utah (1)
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Wah Wah Mountains (1)
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Wasatch Plateau (4)
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Washington County Utah (1)
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Zion National Park (1)
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Vermont
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Franklin County Vermont (1)
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Virginia
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Bedford County Virginia (1)
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Buchanan County Virginia (1)
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Campbell County Virginia (1)
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Chesterfield County Virginia (1)
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King William County Virginia (1)
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New Kent County Virginia (1)
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Pamunkey River (1)
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Pittsylvania County Virginia (2)
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Rockingham County Virginia (2)
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Shenandoah County Virginia (1)
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Smyth County Virginia (1)
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Wabash Valley (2)
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Walker Lane (14)
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Wasatch fault zone (3)
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Washakie Basin (2)
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Washington
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Adams County Washington (1)
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Benton County Washington
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Richland Washington (1)
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Chelan County Washington (2)
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Clallam County Washington (4)
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Clark County Washington
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Vancouver Washington (1)
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Cowlitz County Washington (1)
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Ferry County Washington (1)
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Franklin County Washington (1)
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Grand Coulee Dam (1)
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Grant County Washington (1)
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Grays Harbor County Washington (2)
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Hanford Site (2)
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Jefferson County Washington (4)
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King County Washington
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Seattle Washington (1)
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Kitsap County Washington (2)
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Kittitas County Washington (1)
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Lewis County Washington (3)
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Mason County Washington (1)
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Mount Rainier National Park (3)
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Olympic Mountains (4)
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Olympic Peninsula (10)
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Pacific County Washington
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Willapa Bay (3)
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Pierce County Washington
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Mount Rainier (3)
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Puget Lowland (3)
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Puget Sound (3)
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San Juan County Washington (2)
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Seattle Fault (1)
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Skagit County Washington (2)
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Skamania County Washington
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Mount Saint Helens (5)
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Snohomish County Washington (1)
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Stevens County Washington (1)
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Thurston County Washington (1)
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Toutle River (2)
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Wahkiakum County Washington (1)
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Whatcom County Washington (6)
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Yakima County Washington (2)
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West Virginia
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Monongalia County West Virginia (1)
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Pendleton County West Virginia (1)
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Preston County West Virginia (1)
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Western U.S. (22)
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Wisconsin
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Marathon County Wisconsin (1)
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Milwaukee County Wisconsin
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Milwaukee Wisconsin (1)
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Trempealeau County Wisconsin (1)
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Vilas County Wisconsin (1)
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Wyoming
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Big Horn County Wyoming (1)
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Fremont County Wyoming (1)
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Hanna Basin (2)
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Johnson County Wyoming (1)
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Laramie Basin (1)
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Lincoln County Wyoming (1)
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Natrona County Wyoming (1)
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Niobrara County Wyoming (2)
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Park County Wyoming (3)
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Rock Springs Uplift (1)
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Sweetwater County Wyoming (1)
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Teton County Wyoming
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Grand Teton National Park (2)
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Jackson Hole (1)
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Washakie County Wyoming (1)
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Wind River Range (1)
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Wyoming Province (5)
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Yavapai Province (4)
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Yellowstone National Park (6)
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Yellowstone River (1)
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USSR (3)
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volcanology (14)
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waste disposal (20)
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water resources (10)
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weathering (69)
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well-logging (30)
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West Pacific Ocean Islands
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Kermadec Islands (1)
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Spratly Islands (1)
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Western Hemisphere (1)
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X-ray analysis (10)
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zircon deposits (1)
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rock formations
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Alpine Schist (1)
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Alum Shale Formation (1)
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Beacon Supergroup (2)
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Beaufort Group (2)
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Botucatu Formation (1)
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Coastal Batholith (2)
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Deccan Traps (5)
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Difunta Group (1)
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Emeishan Basalts (5)
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Eureka Sound Group (2)
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Fort Union Formation (2)
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Haast Schist (1)
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Hazelton Group (2)
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Hector Formation (1)
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Huqf Supergroup (1)
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Imperial Formation (1)
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Intertrappean Beds (1)
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Karoo Supergroup (5)
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Little Falls Formation (1)
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Lopez de Bertodano Formation (2)
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Louann Salt (1)
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Medina Formation (2)
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Monashee Complex (1)
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Monterey Formation (4)
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Mount Scopus Group (1)
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Nama Group (6)
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Nanaimo Group (6)
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Nansen Formation (3)
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