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C-13/C-12 (11)
-
C-14 (7)
-
organic carbon (5)
-
-
hydrogen
-
D/H (2)
-
-
isotope ratios (21)
-
isotopes
-
radioactive isotopes
-
C-14 (7)
-
Pb-206/Pb-204 (2)
-
Pb-207/Pb-204 (1)
-
Zn-65 (1)
-
-
stable isotopes
-
C-13/C-12 (11)
-
D/H (2)
-
O-18 (1)
-
O-18/O-16 (8)
-
Pb-206/Pb-204 (2)
-
Pb-207/Pb-204 (1)
-
Pb-207/Pb-206 (1)
-
Pb-208/Pb-206 (1)
-
S-34/S-32 (2)
-
Sr-87/Sr-86 (5)
-
-
-
metals
-
alkali metals (1)
-
alkaline earth metals
-
calcium
-
Mg/Ca (1)
-
-
magnesium
-
Mg/Ca (1)
-
-
strontium
-
Sr-87/Sr-86 (5)
-
-
-
iron
-
ferric iron (1)
-
-
lead
-
Pb-206/Pb-204 (2)
-
Pb-207/Pb-204 (1)
-
Pb-207/Pb-206 (1)
-
Pb-208/Pb-206 (1)
-
-
mercury (1)
-
platinum group (1)
-
rare earths (5)
-
zinc
-
Zn-65 (1)
-
-
-
noble gases
-
helium (1)
-
radon (1)
-
-
oxygen
-
O-18 (1)
-
O-18/O-16 (8)
-
-
sulfur
-
S-34/S-32 (2)
-
-
-
fossils
-
bacteria
-
Shewanella (1)
-
-
borings (2)
-
burrows (2)
-
Chordata
-
Vertebrata
-
Agnatha (1)
-
Tetrapoda
-
Mammalia
-
Theria
-
Eutheria
-
Proboscidea
-
Elephantoidea
-
Elephantidae
-
Mammuthus (1)
-
-
-
-
Rodentia (1)
-
-
-
-
Reptilia
-
Diapsida
-
Archosauria
-
dinosaurs (1)
-
-
Ichthyosauria (1)
-
Sauropterygia
-
Plesiosauria (1)
-
-
-
Synapsida
-
Therapsida
-
Cynodontia (1)
-
-
-
-
-
-
-
Graptolithina (1)
-
ichnofossils (2)
-
Invertebrata
-
Arthropoda
-
Trilobitomorpha
-
Trilobita
-
Agnostida (1)
-
Ptychopariida (1)
-
Redlichiida (1)
-
-
-
-
Brachiopoda (2)
-
Bryozoa (1)
-
Cnidaria
-
Anthozoa (2)
-
-
Echinodermata
-
Crinozoa
-
Crinoidea (2)
-
-
-
Mollusca
-
Bivalvia (2)
-
Gastropoda
-
Turritellidae
-
Turritella (2)
-
-
-
-
Porifera (1)
-
Protista
-
Foraminifera
-
Fusulinina (1)
-
-
Radiolaria (1)
-
-
Vermes
-
Annelida (1)
-
Chaetognatha (1)
-
Nematoida (1)
-
Polychaeta (1)
-
-
-
microfossils
-
Charophyta (1)
-
Conodonta (2)
-
Fusulinina (1)
-
-
palynomorphs
-
Dinoflagellata (1)
-
miospores
-
pollen (2)
-
-
-
Plantae
-
algae
-
Chlorophyta
-
Charophyta (1)
-
Tasmanites (1)
-
-
nannofossils (2)
-
-
Pteridophyta (2)
-
Spermatophyta
-
Angiospermae (3)
-
Gymnospermae
-
Coniferales
-
Pinaceae
-
Larix (1)
-
-
-
-
-
-
problematic fossils (1)
-
trails (1)
-
-
geochronology methods
-
(U-Th)/He (1)
-
Ar/Ar (11)
-
fission-track dating (4)
-
infrared stimulated luminescence (2)
-
optically stimulated luminescence (4)
-
paleomagnetism (3)
-
Pb/Pb (1)
-
Rb/Sr (1)
-
Re/Os (2)
-
tephrochronology (1)
-
Th/U (1)
-
thermochronology (2)
-
U/Pb (17)
-
uranium disequilibrium (1)
-
-
geologic age
-
Cenozoic
-
Glenns Ferry Formation (1)
-
Quaternary
-
Holocene
-
upper Holocene (1)
-
-
middle Quaternary (1)
-
Pleistocene
-
upper Pleistocene
-
Wisconsinan
-
lower Wisconsinan (1)
-
-
-
-
upper Quaternary (2)
-
-
Saugus Formation (1)
-
Tertiary
-
Catahoula Formation (1)
-
lower Tertiary (2)
-
Muddy Creek Formation (1)
-
Neogene
-
Miocene
-
Columbia River Basalt Group (4)
-
Grande Ronde Basalt (1)
-
lower Miocene (2)
-
middle Miocene (2)
-
Saddle Mountains Basalt (1)
-
Stevens Sandstone (1)
-
upper Miocene (2)
-
Yakima Basalt (1)
-
-
Pliocene (2)
-
Ringold Formation (1)
-
-
Paleogene
-
Eocene
-
Cozy Dell Formation (2)
-
Crescent Formation (1)
-
Green River Formation (1)
-
lower Eocene (4)
-
Matilija Formation (1)
-
middle Eocene
-
Claiborne Group (2)
-
Tyee Formation (2)
-
-
Mirador Formation (1)
-
Umpqua Formation (1)
-
-
lower Paleogene (1)
-
Oligocene
-
Frio Formation (3)
-
Glendon Limestone (1)
-
lower Oligocene
-
Rupelian (1)
-
-
-
Paleocene
-
lower Paleocene
-
Danian (2)
-
K-T boundary (1)
-
-
Midway Group (2)
-
upper Paleocene (1)
-
-
Paleocene-Eocene Thermal Maximum (1)
-
Wilcox Group (3)
-
-
-
Tulare Formation (1)
-
upper Cenozoic (1)
-
-
Mesozoic
-
Cretaceous
-
Blairmore Group (2)
-
Colorado Group (1)
-
Comanchean
-
Buda Limestone (1)
-
-
Lower Cretaceous
-
Albian
-
upper Albian (1)
-
-
Aptian (3)
-
Gething Formation (1)
-
Isachsen Formation (1)
-
Kootenay Formation (1)
-
Mannville Group (1)
-
Moosebar Formation (1)
-
Spirit River Formation (1)
-
-
Mancos Shale (2)
-
Middle Cretaceous (1)
-
Upper Cretaceous
-
Blackhawk Formation (2)
-
Buda Limestone (1)
-
Campanian
-
upper Campanian (1)
-
-
Cenomanian (2)
-
Coniacian (1)
-
Ferron Sandstone Member (2)
-
Gallup Sandstone (2)
-
Gulfian
-
Aguja Formation (1)
-
Austin Chalk (1)
-
Eagle Ford Formation (3)
-
-
Horseshoe Canyon Formation (1)
-
K-T boundary (1)
-
La Luna Formation (1)
-
Lewis Shale (1)
-
Maestrichtian (2)
-
Mesaverde Group (2)
-
Middendorf Formation (1)
-
Pierre Shale (1)
-
Point Lookout Sandstone (1)
-
Senonian (3)
-
Star Point Sandstone (2)
-
Tununk Member (1)
-
Turonian (4)
-
Williams Fork Formation (1)
-
-
-
Glen Canyon Group (1)
-
Jurassic
-
Birkhead Formation (1)
-
Lower Jurassic
-
Laberge Group (2)
-
-
Middle Jurassic
-
Bajocian (1)
-
Walloon Coal Measures (1)
-
-
San Rafael Group (1)
-
Upper Jurassic
-
Entrada Sandstone (1)
-
Morrison Formation (1)
-
Oxfordian (1)
-
Sundance Formation (1)
-
-
-
Kayenta Formation (1)
-
lower Mesozoic (1)
-
Navajo Sandstone (1)
-
Newark Supergroup (1)
-
Triassic
-
Lower Triassic
-
Permian-Triassic boundary (1)
-
-
Middle Triassic
-
Doig Formation (1)
-
Ladinian (1)
-
-
Montney Formation (2)
-
Upper Triassic (2)
-
-
Wingate Sandstone (1)
-
-
Paleozoic
-
Arbuckle Group (1)
-
Cambrian
-
Lower Cambrian
-
Rome Formation (2)
-
Zabriskie Quartzite (1)
-
-
Middle Cambrian (1)
-
-
Carboniferous
-
Bartlesville Sand (1)
-
Lower Carboniferous
-
Dinantian (1)
-
-
Mississippian
-
Lower Mississippian
-
Pocono Formation (1)
-
-
-
Pennsylvanian
-
Conemaugh Group (1)
-
Middle Pennsylvanian
-
Allegheny Group (2)
-
Atokan
-
Atoka Formation (1)
-
-
Desmoinesian
-
Spiro Sandstone (1)
-
-
-
Monongahela Group (1)
-
Wapanucka Limestone (1)
-
-
Silesian (1)
-
Upper Carboniferous (1)
-
-
Devonian
-
Lower Devonian
-
Oriskany Sandstone (1)
-
-
Middle Devonian
-
Eifelian (1)
-
Elk Point Group (1)
-
Hamilton Group (1)
-
Marcellus Shale (7)
-
Onondaga Limestone (4)
-
Tully Limestone (1)
-
-
Swan Hills Formation (1)
-
Thirtyone Formation (1)
-
Upper Devonian
-
Famennian
-
Wabamun Group (1)
-
-
Huron Member (1)
-
-
-
Dunkard Group (1)
-
Exshaw Formation (1)
-
Hanson Creek Formation (1)
-
Hunton Group (2)
-
Knox Group (1)
-
lower Paleozoic
-
Elberton Granite (1)
-
Rose Run Sandstone (1)
-
-
middle Paleozoic (1)
-
Ordovician
-
Eureka Quartzite (1)
-
Lower Ordovician
-
Beekmantown Group (1)
-
Tremadocian (1)
-
-
Martinsburg Formation (1)
-
Middle Ordovician (2)
-
Trenton Group (3)
-
Upper Ordovician
-
Mohawkian (1)
-
Reedsville Formation (1)
-
Trentonian (1)
-
-
Utica Shale (2)
-
-
Permian
-
Ecca Group (1)
-
Lower Permian (3)
-
Park City Formation (1)
-
Phosphoria Formation (1)
-
Rotliegendes (1)
-
Upper Permian
-
Permian-Triassic boundary (1)
-
Zechstein (1)
-
-
-
Road River Formation (1)
-
Silurian
-
Lower Silurian
-
Tuscarora Formation (3)
-
-
Middle Silurian
-
Keefer Sandstone (1)
-
McKenzie Formation (1)
-
Roberts Mountains Formation (1)
-
Rose Hill Formation (1)
-
-
Upper Silurian
-
Cayugan
-
Tonoloway Limestone (1)
-
Williamsport Sandstone (1)
-
-
Salina Group (2)
-
-
-
upper Paleozoic (1)
-
Woodford Shale (3)
-
-
Phanerozoic (3)
-
Precambrian
-
Archean
-
Neoarchean (2)
-
Taihua Group (1)
-
-
Lewisian Complex (2)
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (3)
-
Miette Group (1)
-
Neoproterozoic
-
Ediacaran (2)
-
Horsethief Creek Group (1)
-
McCoy Creek Group (1)
-
Vendian (1)
-
-
Paleoproterozoic (1)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
carbonatites (1)
-
plutonic rocks
-
diabase (1)
-
diorites
-
plagiogranite (1)
-
quartz diorites (1)
-
-
gabbros (2)
-
granites (3)
-
pegmatite (1)
-
ultramafics
-
peridotites (1)
-
-
-
volcanic rocks
-
basalts
-
flood basalts (3)
-
mid-ocean ridge basalts (1)
-
-
glasses
-
volcanic glass (1)
-
-
komatiite (1)
-
pyroclastics
-
ignimbrite (1)
-
tuff (2)
-
-
rhyolites (1)
-
-
-
ophiolite (1)
-
volcanic ash (1)
-
wehrlite (1)
-
-
metamorphic rocks
-
metamorphic rocks
-
eclogite (1)
-
gneisses (2)
-
metasedimentary rocks (1)
-
mylonites
-
pseudotachylite (1)
-
-
quartzites (3)
-
-
ophiolite (1)
-
turbidite (9)
-
-
meteorites
-
meteorites (1)
-
-
minerals
-
carbonates
-
bastnaesite (1)
-
calcite (2)
-
dolomite (1)
-
synchysite (1)
-
-
halides
-
chlorides
-
halite (2)
-
-
fluorides
-
bastnaesite (1)
-
synchysite (1)
-
-
-
minerals (2)
-
oxides
-
hydroxides
-
iron hydroxides (1)
-
-
thorianite (1)
-
-
phosphates
-
apatite (6)
-
monazite (1)
-
vivianite (1)
-
xenotime (1)
-
-
silicates
-
chain silicates
-
pyroxene group
-
clinopyroxene
-
diopside (1)
-
-
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
K-feldspar (2)
-
sanidine (4)
-
-
-
silica minerals
-
chalcedony (1)
-
moganite (1)
-
quartz (5)
-
-
-
orthosilicates
-
nesosilicates
-
zircon group
-
zircon (21)
-
-
-
sorosilicates
-
bertrandite (1)
-
epidote group
-
allanite (1)
-
epidote (1)
-
-
-
-
ring silicates
-
beryl (1)
-
emerald (1)
-
tourmaline group (1)
-
-
sheet silicates
-
chlorite group
-
chlorite (1)
-
-
clay minerals
-
montmorillonite (1)
-
nontronite (1)
-
smectite (1)
-
-
illite (1)
-
palygorskite (1)
-
-
-
sulfates
-
gypsum (2)
-
-
sulfides
-
copper sulfides (1)
-
nickel sulfides (1)
-
-
wehrlite (1)
-
-
Primary terms
-
absolute age (35)
-
Africa
-
East Africa
-
Lake Malawi (1)
-
Sudan (1)
-
-
East African Lakes
-
Lake Malawi (1)
-
-
East African Rift (1)
-
North Africa
-
Atlas Mountains
-
Moroccan Atlas Mountains
-
Middle Atlas (1)
-
-
-
Morocco
-
Moroccan Atlas Mountains
-
Middle Atlas (1)
-
-
Rif (1)
-
-
-
Southern Africa
-
Karoo Basin (1)
-
South Africa
-
Northern Cape Province South Africa (1)
-
-
-
West Africa
-
Nigeria
-
Niger Delta (1)
-
-
Sierra Leone (1)
-
-
-
Antarctica
-
Victoria Land
-
Allan Hills (1)
-
-
-
Arctic Ocean
-
Alpha Cordillera (1)
-
Barents Sea (3)
-
Nares Strait (1)
-
Norwegian Sea
-
More Basin (2)
-
Voring Basin (3)
-
-
-
Arctic region
-
Greenland
-
Northern Greenland (2)
-
-
Russian Arctic
-
New Siberian Islands (1)
-
-
Svalbard
-
Spitsbergen
-
Spitsbergen Island (1)
-
-
-
-
Asia
-
Arabian Peninsula
-
Oman
-
Oman Mountains (1)
-
-
-
Far East
-
Borneo (1)
-
China
-
Bohaiwan Basin (1)
-
Henan China (1)
-
North China Platform (1)
-
Tarim Platform (1)
-
Xiaoqinling Mountains (1)
-
Xinjiang China
-
Junggar Basin (1)
-
Kuqa Depression (1)
-
Tahe Field (1)
-
Taklimakan Desert (1)
-
Tarim Basin (1)
-
-
Zhejiang China (1)
-
-
Indonesia
-
Celebes (1)
-
-
Mongolia (1)
-
Taiwan (1)
-
-
Indian Peninsula
-
Ganges River basin (1)
-
India
-
Gujarat India
-
Kutch India (1)
-
-
Uttar Pradesh India (1)
-
Yamuna River (1)
-
-
Indo-Gangetic Plain (1)
-
-
Krasnoyarsk Russian Federation
-
Taymyr Dolgan-Nenets Russian Federation
-
Norilsk region (1)
-
-
-
Middle East
-
Iran (1)
-
Turkey
-
Anatolia (1)
-
Konya Turkey (1)
-
Taurus Mountains (1)
-
-
Zagros (2)
-
-
Siberian Platform (1)
-
Southeast Asia (1)
-
Tien Shan (3)
-
Yakutia Russian Federation
-
New Siberian Islands (1)
-
-
-
Atlantic Ocean
-
Equatorial Atlantic (2)
-
North Atlantic
-
Caribbean Sea
-
Cayman Trough (1)
-
Nicaragua Rise (1)
-
-
Faeroe-Shetland Basin (3)
-
Gulf of Mexico (4)
-
Labrador Sea (1)
-
North Sea
-
Kattegat (1)
-
Skagerrak (1)
-
-
Northeast Atlantic (3)
-
Northwest Atlantic
-
Demerara Rise (1)
-
-
Sierra Leone Rise (1)
-
-
West Atlantic (1)
-
-
Atlantic Ocean Islands
-
Shetland Islands (1)
-
-
Atlantic region (1)
-
atmosphere (1)
-
Australasia
-
Australia
-
Bass Strait
-
Bass Basin (1)
-
-
Clarence-Moreton Basin (1)
-
Eromanga Basin (1)
-
New South Wales Australia (2)
-
Surat Basin (1)
-
-
-
bacteria
-
Shewanella (1)
-
-
bibliography (1)
-
biogeography (6)
-
biography (2)
-
bitumens (1)
-
brines (1)
-
Canada
-
Arctic Archipelago (2)
-
Eastern Canada
-
Maritime Provinces
-
New Brunswick
-
Restigouche County New Brunswick (1)
-
-
Nova Scotia (2)
-
-
Newfoundland and Labrador
-
Newfoundland
-
Notre Dame Bay (1)
-
-
-
Ontario
-
Sudbury District Ontario (1)
-
Sudbury igneous complex (1)
-
-
-
Mackenzie Mountains (1)
-
Nunavut
-
Ellesmere Island (1)
-
Sverdrup Basin (1)
-
Sverdrup Islands
-
Axel Heiberg Island (1)
-
-
-
Queen Elizabeth Islands
-
Ellesmere Island (1)
-
Sverdrup Basin (1)
-
Sverdrup Islands
-
Axel Heiberg Island (1)
-
-
-
Richardson Mountains (2)
-
Selwyn Mountains (1)
-
Stikinia Terrane (2)
-
Western Canada
-
Alberta
-
Alberta Basin (2)
-
Drumheller Alberta (1)
-
Peace River Arch (2)
-
-
Athabasca Basin (1)
-
British Columbia
-
Bowser Basin (1)
-
Dogtooth Mountains (1)
-
Queen Charlotte Islands (1)
-
Vancouver British Columbia (1)
-
Vancouver Island (1)
-
-
Canadian Cordillera (9)
-
Canadian Rocky Mountains (8)
-
Manitoba (1)
-
Northwest Territories
-
Mackenzie Delta (1)
-
-
Saskatchewan (2)
-
Selwyn Basin (1)
-
Yukon Territory
-
Wernecke Mountains (1)
-
-
-
Whitehorse Trough (2)
-
-
carbon
-
C-13/C-12 (11)
-
C-14 (7)
-
organic carbon (5)
-
-
Caribbean region
-
West Indies
-
Antilles
-
Greater Antilles
-
Jamaica (1)
-
-
-
Bahamas (1)
-
-
-
catalogs (2)
-
Cenozoic
-
Glenns Ferry Formation (1)
-
Quaternary
-
Holocene
-
upper Holocene (1)
-
-
middle Quaternary (1)
-
Pleistocene
-
upper Pleistocene
-
Wisconsinan
-
lower Wisconsinan (1)
-
-
-
-
upper Quaternary (2)
-
-
Saugus Formation (1)
-
Tertiary
-
Catahoula Formation (1)
-
lower Tertiary (2)
-
Muddy Creek Formation (1)
-
Neogene
-
Miocene
-
Columbia River Basalt Group (4)
-
Grande Ronde Basalt (1)
-
lower Miocene (2)
-
middle Miocene (2)
-
Saddle Mountains Basalt (1)
-
Stevens Sandstone (1)
-
upper Miocene (2)
-
Yakima Basalt (1)
-
-
Pliocene (2)
-
Ringold Formation (1)
-
-
Paleogene
-
Eocene
-
Cozy Dell Formation (2)
-
Crescent Formation (1)
-
Green River Formation (1)
-
lower Eocene (4)
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Integrated Ocean Drilling Program
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