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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
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Central Africa
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Angola
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Cuanza Basin (1)
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Cuanza-Sul Angola (1)
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Congo Basin (1)
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East Africa
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Kenya
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Mount Kenya (1)
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Zambia (1)
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East African Lakes
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Lake Tanganyika (1)
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Namib Desert (1)
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North Africa
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Egypt
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Eastern Desert (1)
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Sinai Egypt (2)
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Nubian Shield (1)
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Southern Africa
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Karoo Basin (3)
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Namibia (2)
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South Africa
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Bushveld Complex (1)
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KwaZulu-Natal South Africa (1)
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North-West Province South Africa (1)
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Witwatersrand (1)
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Zimbabwe
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Belingwe greenstone belt (1)
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West Africa (1)
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Altiplano (1)
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Antarctica
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Queen Maud Land
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Sor-Rondane Mountains (1)
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Victoria Land
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McMurdo dry valleys (2)
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Antelope Valley (1)
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Arctic Ocean
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Asia
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Central Asia
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Far East
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China
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Japan
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Atlantic Ocean
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Newfoundland and Labrador
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Ontario
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Scythian Platform (1)
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Ukraine
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Conical Seamount (1)
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Europe
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Germany
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Southern Europe
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Spain
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Italy
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Ukraine
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Western Europe
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Highland region Scotland
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Midlothian Scotland (1)
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Wales
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Fairweather Fault (1)
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International Ocean Discovery Program (2)
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North America
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North Slope (7)
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Oceania
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Pacific Ocean
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commodities
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coal deposits (1)
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construction materials
-
building stone (1)
-
-
diamond deposits (1)
-
energy sources (5)
-
fluorspar deposits (1)
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geothermal energy (2)
-
metal ores
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arsenic ores (1)
-
base metals (4)
-
copper ores (6)
-
gold ores (6)
-
iron ores (1)
-
lead ores (6)
-
lead-zinc deposits (2)
-
molybdenum ores (2)
-
niobium ores (1)
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palladium ores (1)
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platinum ores (1)
-
polymetallic ores (4)
-
silver ores (6)
-
tantalum ores (1)
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uranium ores (7)
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vanadium ores (1)
-
zinc ores (5)
-
-
mineral deposits, genesis (19)
-
mineral exploration (11)
-
oil and gas fields (17)
-
ornamental materials (1)
-
petroleum
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natural gas
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coalbed methane (1)
-
shale gas (4)
-
-
shale oil (1)
-
-
potash (1)
-
water resources (2)
-
-
elements, isotopes
-
boron
-
B-11/B-10 (1)
-
-
carbon
-
C-13 (1)
-
C-13/C-12 (18)
-
C-14 (17)
-
organic carbon (2)
-
-
chemical ratios (2)
-
halogens
-
chlorine
-
chloride ion (1)
-
-
fluorine
-
fluoride ion (1)
-
-
-
hydrogen
-
D/H (2)
-
-
isotope ratios (31)
-
isotopes
-
radioactive isotopes
-
Al-26 (1)
-
Ar-40/Ar-39 (1)
-
Be-10 (5)
-
C-14 (17)
-
Pb-206/Pb-204 (3)
-
Ra-226 (1)
-
Rn-222 (1)
-
Th-232 (1)
-
U-238 (1)
-
-
stable isotopes
-
Ar-40/Ar-39 (1)
-
B-11/B-10 (1)
-
C-13 (1)
-
C-13/C-12 (18)
-
D/H (2)
-
Fe-56/Fe-54 (1)
-
He-3 (1)
-
Hf-177/Hf-176 (3)
-
N-15/N-14 (1)
-
Nd-144/Nd-143 (1)
-
O-18 (1)
-
O-18/O-16 (11)
-
Os-188/Os-187 (1)
-
Pb-206/Pb-204 (3)
-
S-34/S-32 (6)
-
Sr-87/Sr-86 (3)
-
-
-
metals
-
actinides
-
neptunium (1)
-
thorium
-
Th-232 (1)
-
-
uranium
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U-238 (1)
-
-
-
alkali metals
-
lithium (2)
-
potassium (2)
-
sodium (2)
-
-
alkaline earth metals
-
beryllium
-
Be-10 (5)
-
-
calcium
-
Sr/Ca (1)
-
-
magnesium (3)
-
radium
-
Ra-226 (1)
-
-
strontium
-
Sr/Ca (1)
-
Sr-87/Sr-86 (3)
-
-
-
aluminum
-
Al-26 (1)
-
-
chromium (1)
-
copper (1)
-
gold (2)
-
hafnium
-
Hf-177/Hf-176 (3)
-
-
iron
-
Fe-56/Fe-54 (1)
-
ferric iron (2)
-
ferrous iron (3)
-
-
lead
-
Pb-206/Pb-204 (3)
-
-
manganese (1)
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mercury (1)
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molybdenum (3)
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nickel (2)
-
niobium (1)
-
platinum group
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osmium
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Os-188/Os-187 (1)
-
-
palladium ores (1)
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platinum ores (1)
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ruthenium (1)
-
-
precious metals (1)
-
rare earths
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europium (1)
-
neodymium
-
Nd-144/Nd-143 (1)
-
-
yttrium (3)
-
-
tantalum (1)
-
titanium (1)
-
-
nitrogen
-
N-15/N-14 (1)
-
-
noble gases
-
argon
-
Ar-40/Ar-39 (1)
-
-
helium
-
He-3 (1)
-
-
radon
-
Rn-222 (1)
-
-
-
oxygen
-
O-18 (1)
-
O-18/O-16 (11)
-
-
phosphorus (1)
-
silicon (2)
-
sulfur
-
S-34/S-32 (6)
-
-
trace metals (3)
-
-
fossils
-
bacteria (1)
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borings (1)
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burrows (1)
-
Chordata
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Vertebrata
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Agnatha (1)
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Pisces
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Chondrichthyes
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Elasmobranchii (1)
-
-
Osteichthyes
-
Actinopterygii (1)
-
-
-
Tetrapoda
-
Amphibia
-
Labyrinthodontia
-
Anthracosauria (1)
-
-
-
Aves
-
Neornithes (1)
-
-
Mammalia
-
Multituberculata (1)
-
Theria
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Eutheria
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Carnivora
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Fissipeda
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Felidae
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Smilodon (1)
-
-
-
-
Proboscidea
-
Elephantoidea
-
Elephantidae
-
Mammuthus (1)
-
-
-
-
Rodentia (1)
-
-
-
-
Reptilia
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Diapsida
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Archosauria
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dinosaurs
-
Saurischia
-
Sauropodomorpha
-
Sauropoda (1)
-
-
Theropoda
-
Coelurosauria (1)
-
-
-
-
-
-
-
-
-
-
cyanobacteria (1)
-
eukaryotes (3)
-
ichnofossils (5)
-
Invertebrata
-
Arthropoda
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Mandibulata
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Insecta
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Pterygota
-
Neoptera
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Endopterygota
-
Hymenoptera (1)
-
Mecoptera (1)
-
-
-
-
-
-
Trilobitomorpha
-
Trilobita (2)
-
-
-
Brachiopoda
-
Articulata
-
Rhynchonellida (1)
-
-
-
Cnidaria
-
Anthozoa (2)
-
-
Echinodermata
-
Crinozoa
-
Crinoidea (1)
-
-
Echinozoa
-
Echinoidea (2)
-
-
-
Mollusca
-
Bivalvia
-
Heterodonta
-
Veneroida
-
Cardiidae (1)
-
Mactra (1)
-
-
-
Nuculidae (1)
-
-
Cephalopoda
-
Ammonoidea
-
Ammonites (1)
-
Baculites (1)
-
-
-
Gastropoda
-
Neogastropoda (1)
-
-
-
Porifera (1)
-
Protista
-
Foraminifera (6)
-
Radiolaria (4)
-
-
-
lichens (1)
-
Metazoa (1)
-
microfossils
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Conodonta (3)
-
-
palynomorphs
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acritarchs (2)
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miospores
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Classopollis (1)
-
pollen (5)
-
-
-
Plantae
-
algae
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Chlorophyta (2)
-
Coccolithophoraceae (2)
-
diatoms (3)
-
-
Spermatophyta
-
Angiospermae
-
Dicotyledoneae
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Quercus (1)
-
-
-
Gymnospermae
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Coniferales (1)
-
Pteridospermae
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Neuropteris (1)
-
-
-
-
-
problematic fossils (1)
-
-
geochronology methods
-
(U-Th)/He (1)
-
Ar/Ar (8)
-
exposure age (4)
-
fission-track dating (2)
-
infrared stimulated luminescence (1)
-
K/Ar (1)
-
optically stimulated luminescence (5)
-
paleomagnetism (12)
-
Pb/Pb (2)
-
racemization (2)
-
radiation damage (1)
-
Th/U (1)
-
thermochronology (6)
-
U/Pb (27)
-
U/Th/Pb (2)
-
-
geologic age
-
Anthropocene (2)
-
Cenozoic
-
Quaternary
-
Holocene
-
lower Holocene (2)
-
upper Holocene (8)
-
-
Pleistocene
-
upper Pleistocene
-
Weichselian
-
upper Weichselian
-
Younger Dryas (1)
-
-
-
-
-
upper Quaternary (5)
-
-
Tertiary
-
Neogene
-
Bidahochi Formation (1)
-
Miocene
-
Barstow Formation (1)
-
lower Miocene (2)
-
middle Miocene (2)
-
upper Miocene (1)
-
-
Ogallala Formation (1)
-
Pliocene (4)
-
-
Paleogene
-
Eocene
-
lower Eocene
-
Willwood Formation (2)
-
Ypresian (1)
-
-
middle Eocene (1)
-
-
Hanna Formation (1)
-
lower Paleogene (1)
-
Oligocene
-
Frio Formation (2)
-
middle Oligocene
-
Marianna Limestone (1)
-
-
-
Paleocene
-
lower Paleocene
-
K-T boundary (2)
-
-
upper Paleocene
-
Tiffanian (1)
-
-
-
Paleocene-Eocene Thermal Maximum (1)
-
Refugian (1)
-
-
Shahejie Formation (1)
-
upper Tertiary (1)
-
-
upper Cenozoic (1)
-
-
Mesozoic
-
Cretaceous
-
Comanchean
-
Buda Limestone (3)
-
Edwards Formation (1)
-
Glen Rose Formation (1)
-
Trinity Group (1)
-
-
Lower Cretaceous
-
Albian (3)
-
Edwards Formation (1)
-
Glen Rose Formation (1)
-
Mannville Group (1)
-
Mowry Shale (2)
-
Trinity Group (1)
-
-
Nanushuk Group (1)
-
Upper Cretaceous
-
Buda Limestone (3)
-
Campanian
-
Dinosaur Park Formation (1)
-
upper Campanian (1)
-
-
Cardium Formation (3)
-
Cenomanian
-
Dunvegan Formation (1)
-
-
Coniacian
-
lower Coniacian (1)
-
-
Ferron Sandstone Member (1)
-
Fruitland Formation (2)
-
Gulfian
-
Austin Chalk (1)
-
Eagle Ford Formation (5)
-
Woodbine Formation (1)
-
-
Horseshoe Canyon Formation (1)
-
K-T boundary (2)
-
Maestrichtian
-
upper Maestrichtian (1)
-
-
Niobrara Formation (1)
-
Peedee Formation (1)
-
Pictured Cliffs Sandstone (1)
-
Santonian (1)
-
Senonian (1)
-
Turonian
-
upper Turonian (1)
-
-
-
-
Franciscan Complex (1)
-
Jurassic
-
Kingak Shale (1)
-
Lower Jurassic (1)
-
Upper Jurassic
-
Entrada Sandstone (1)
-
Haynesville Formation (2)
-
Kimmeridge Clay (1)
-
Morrison Formation (2)
-
Salt Wash Sandstone Member (1)
-
Sundance Formation (1)
-
Volgian (1)
-
-
-
Triassic
-
Lower Triassic
-
Permian-Triassic boundary (1)
-
-
Middle Triassic (1)
-
Moenkopi Formation (1)
-
Shublik Formation (4)
-
Upper Triassic
-
Keuper (1)
-
Mercia Mudstone (1)
-
Norian (2)
-
Yanchang Formation (2)
-
-
-
-
MIS 2 (1)
-
MIS 3 (1)
-
Paleozoic
-
Berea Sandstone (1)
-
Cambrian
-
Lower Cambrian
-
Terreneuvian (1)
-
-
Middle Cambrian
-
Flathead Sandstone (1)
-
-
Upper Cambrian
-
Pilgrim Formation (1)
-
-
-
Carboniferous
-
Mississippian
-
Barnett Shale (3)
-
Lower Mississippian
-
Kekiktuk Conglomerate (1)
-
Tournaisian (1)
-
-
Middle Mississippian (1)
-
Sunbury Shale (1)
-
Upper Mississippian
-
Chesterian (2)
-
Meramecian
-
Salem Limestone (1)
-
-
-
-
Pennsylvanian
-
Lower Pennsylvanian
-
Bashkirian (1)
-
-
Middle Pennsylvanian
-
Atokan (1)
-
Desmoinesian (1)
-
Paradox Formation (2)
-
-
Morrow Formation (1)
-
Pottsville Group (1)
-
Strawn Series (2)
-
Upper Pennsylvanian
-
Canyon Group (1)
-
Cisco Group (1)
-
-
-
Upper Carboniferous
-
Westphalian (1)
-
-
-
Cow Head Group (2)
-
Devonian
-
Beaverhill Lake Group (1)
-
Lower Devonian (1)
-
Middle Devonian
-
Elk Point Group (3)
-
Givetian (1)
-
Jeffersonville Limestone (1)
-
Marcellus Shale (4)
-
Prairie Evaporite (2)
-
Sylvania Formation (1)
-
Winnipegosis Formation (4)
-
-
Upper Devonian
-
Famennian
-
Wabamun Group (1)
-
-
Frasnian (2)
-
Kanayut Conglomerate (1)
-
Kellwasser event (1)
-
Ohio Shale (1)
-
-
-
Earn Group (1)
-
Helderberg Group (1)
-
Keyser Limestone (1)
-
Lisburne Group (1)
-
middle Paleozoic (1)
-
New Albany Shale (1)
-
Ordovician
-
Lower Ordovician
-
Ellenburger Group (2)
-
Saint George Group (1)
-
Tremadocian
-
Halifax Formation (1)
-
-
-
Middle Ordovician (2)
-
Trenton Group (1)
-
Upper Ordovician
-
Cincinnatian (2)
-
Fairview Formation (1)
-
Trentonian (1)
-
-
Utica Shale (1)
-
-
Permian
-
Cutler Formation (1)
-
Ecca Group (2)
-
Guadalupian
-
Bell Canyon Formation (1)
-
Capitan Formation (1)
-
Delaware Mountain Group (1)
-
Tansill Formation (1)
-
-
Lower Permian
-
Abo Formation (2)
-
Leonardian (1)
-
-
Upper Permian
-
Lopingian
-
Changhsingian (1)
-
-
Permian-Triassic boundary (1)
-
-
Vryheid Formation (1)
-
Whitehill Formation (1)
-
Yeso Formation (1)
-
-
Silurian
-
Bass Islands Dolomite (1)
-
Lockport Formation (1)
-
Lower Silurian
-
Llandovery (1)
-
Wenlock (1)
-
-
Middle Silurian (1)
-
Niagaran (1)
-
Upper Silurian
-
Salina Group (2)
-
-
-
upper Paleozoic
-
Antrim Shale (1)
-
Bakken Formation (1)
-
Kaskaskia Sequence (1)
-
-
Woodford Shale (1)
-
-
Phanerozoic (2)
-
Precambrian
-
Archean
-
Neoarchean (3)
-
Peninsular Gneiss (1)
-
Yellowknife Group (1)
-
-
Chuar Group (2)
-
Prince Albert Group (1)
-
Stillwater Complex (1)
-
upper Precambrian
-
Proterozoic
-
Cahill Formation (1)
-
Great Oxidation Event (2)
-
Keweenawan
-
Copper Harbor Conglomerate (1)
-
-
Kombolgie Formation (4)
-
Mesoproterozoic
-
Roper Group (1)
-
Stenian (1)
-
-
Neoproterozoic
-
Doushantuo Formation (1)
-
Ediacaran (2)
-
Hadrynian (1)
-
Nantuo Formation (1)
-
Tonian (6)
-
Vendian (1)
-
-
Oronto Group (1)
-
Ortega Group (1)
-
Paleoproterozoic
-
Aphebian
-
Hurwitz Group (1)
-
-
-
Sinian
-
Doushantuo Formation (1)
-
Nantuo Formation (1)
-
-
Windermere System (2)
-
-
-
Vadito Group (1)
-
Witwatersrand Supergroup (1)
-
-
Vindhyan (1)
-
-
igneous rocks
-
igneous rocks
-
carbonatites (1)
-
kimberlite (1)
-
plutonic rocks
-
diabase (3)
-
diorites
-
tonalite (1)
-
-
granites
-
A-type granites (1)
-
-
pegmatite (2)
-
syenites
-
alkali syenites (1)
-
-
-
volcanic rocks
-
andesites (1)
-
basalts
-
flood basalts (1)
-
mid-ocean ridge basalts (1)
-
-
glasses (1)
-
pyroclastics
-
ignimbrite (1)
-
tuff (3)
-
welded tuff (1)
-
-
-
-
volcanic ash (2)
-
-
metamorphic rocks
-
metamorphic rocks
-
cataclasites (1)
-
eclogite (1)
-
gneisses
-
augen gneiss (1)
-
granite gneiss (1)
-
paragneiss (2)
-
-
granulites (2)
-
impactites
-
impact breccia
-
lunar breccia (1)
-
-
-
marbles (2)
-
metaigneous rocks (1)
-
metasedimentary rocks
-
metachert (1)
-
metaconglomerate (1)
-
metagraywacke (1)
-
metapelite (1)
-
metasandstone (1)
-
paragneiss (2)
-
-
metasomatic rocks
-
skarn (3)
-
-
metavolcanic rocks (3)
-
mylonites
-
pseudotachylite (1)
-
ultramylonite (2)
-
-
quartzites (3)
-
schists
-
blueschist (1)
-
greenstone (1)
-
-
-
turbidite (9)
-
-
meteorites
-
meteorites
-
Northwest Africa Meteorites (1)
-
stony meteorites
-
achondrites
-
lunar meteorites (1)
-
Martian meteorites
-
SNC Meteorites
-
chassignite (1)
-
nakhlite (1)
-
shergottite (1)
-
-
-
-
-
-
-
minerals
-
alloys
-
phosphides (1)
-
-
arsenates (1)
-
arsenides
-
lollingite (1)
-
-
borates (1)
-
carbonates
-
aragonite (1)
-
calcite (7)
-
dolomite (7)
-
siderite (2)
-
-
halides
-
fluorides
-
fluorite (1)
-
-
-
hydrates (2)
-
minerals (1)
-
molybdates
-
powellite (1)
-
-
native elements
-
graphite (1)
-
-
nitrates (1)
-
oxides
-
anatase (1)
-
brookite (1)
-
cassiterite (1)
-
ferrihydrite (1)
-
ferropericlase (1)
-
franklinite (1)
-
goethite (1)
-
hematite (3)
-
hydroxides (2)
-
iron oxides (2)
-
magnesioferrite (1)
-
magnetite (4)
-
niobates
-
betafite (1)
-
columbite (1)
-
euxenite (1)
-
pyrochlore (1)
-
-
periclase (1)
-
perovskite (2)
-
portlandite (1)
-
rutile (1)
-
spinel (1)
-
spinel group (1)
-
tantalates
-
betafite (1)
-
euxenite (1)
-
microlite (1)
-
tantalite (1)
-
-
titanium oxides (1)
-
uraninite (1)
-
zincite (1)
-
zirconolite (2)
-
-
phosphates
-
apatite (7)
-
florencite (1)
-
fluorapatite (2)
-
goyazite (1)
-
merrillite (1)
-
monazite (6)
-
xenotime (1)
-
-
silicates
-
aluminosilicates (3)
-
chain silicates
-
amphibole group (1)
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
celsian (1)
-
K-feldspar (1)
-
-
barium feldspar
-
celsian (1)
-
-
plagioclase (2)
-
-
silica minerals
-
jasper (1)
-
quartz (2)
-
-
-
orthosilicates
-
nesosilicates
-
andalusite (1)
-
garnet group
-
almandine (1)
-
grossular (2)
-
hydrogarnet (1)
-
majorite (1)
-
-
kyanite (1)
-
larnite (1)
-
olivine group
-
olivine (1)
-
ringwoodite (1)
-
-
phenakite group
-
willemite (1)
-
-
sillimanite (2)
-
titanite group
-
titanite (1)
-
-
zircon group
-
thorite (1)
-
zircon (20)
-
-
-
sorosilicates
-
epidote group
-
allanite (1)
-
-
lawsonite (1)
-
-
-
ring silicates
-
cordierite (2)
-
tourmaline group (2)
-
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sheet silicates
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
Katherine Group
Paleomagnetism of the Katherine Group in the Mackenzie Mountains: implications for post-Grenville (Hadrynian) apparent polar wander Free
Paleomagnetism and the origin of the Mackenzie Arc of northwestern Canada Free
Detailed graphic log for measured section 12MWBs02 through Nainlin Formatio... Available to Purchase
Detailed graphic log for measured section 12MWBs03 through Nainlin Formatio... Available to Purchase
Probability density diagrams and histograms for detrital zircon samples fro... Available to Purchase
Bedding-plane view of conglomerate at base of Nainlin Formation in measured... Available to Purchase
Stratigraphic chart for Lower and Middle Cambrian formations in the norther... Available to Purchase
Detrital zircon populations from Mackenzie Mountains Supergroup (MMS) as po... Available to Purchase
Semisupervised salt segmentation using mean teacher Available to Purchase
View of Proterozoic and Paleozoic stratigraphy exposed in a ridge immediate... Available to Purchase
Controls on pore types and pore-size distribution in the Upper Triassic Yanchang Formation, Ordos Basin, China: Implications for pore-evolution models of lacustrine mudrocks Available to Purchase
Basin architecture and syndepositional fault activity during deposition of the Neoproterozoic Mackenzie Mountains supergroup, Northwest Territories, Canada Northwest Territories Geoscience Office Contribution 0040. Available to Purchase
Zircon provenance data record the lateral extent of pancontinental, early Neoproterozoic rivers and erosional unroofing history of the Grenville orogen Available to Purchase
Katherine Greacen Nelson: Advocate for the public appreciation of earth science Available to Purchase
ABSTRACT Katherine Greacen Nelson (1913–1982) achieved many firsts in her career, but sharing her enthusiasm for geology was first and foremost to her. As the first child born into a military family in 1913, Katherine Fielding Greacen was exposed to nature and travel at an early age. By 1934, she received her bachelor degree from Vassar College, winning a prize for excellence in geology. Just four years later, she received the first Ph.D. in geology from Rutgers University and was the first woman awarded a doctorate in any discipline at that school. Soon after, Katherine was hired by Milwaukee-Downer College as the geology/geography department and curator of its Greene Museum. She left campus for the Texas oilfields in 1943 to do her part for the war effort, working as a petroleum geologist and paleontologist. Having returned to Milwaukee-Downer in 1946, she left again in 1954. The newly founded University of Wisconsin–Milwaukee (UWM) acquired the Milwaukee-Downer campus in 1956, and Katherine became the first faculty member and chair of the geology department. She later brokered the purchase of the Greene collection for UWM and established a public education program at the museum. Serving many professional societies and lay organizations throughout her life, Nelson was the first woman president of the Wisconsin Academy of Sciences, Arts and Letters in 1952, and the first woman to receive the Neil Miner Award from the National Association of Geology Teachers in 1978. Throughout her career, Katherine’s mission was to help people understand their surroundings, appreciate geologic time and processes, and feel awe for all that has gone before. To these ends, she put her effort and energy into reaching the widest audience by presenting public lectures, helping geology hobbyists, giving museum tours to schoolchildren, writing popularized articles, and giving media interviews. She even explained the importance of Wisconsin’s glacial features to politicians to help establish the Ice Age National Scientific Reserve. Katherine especially enjoyed taking students into the field, many for their first exposure to the landscape. As a result, she inspired generations of students to share their (and her) knowledge and enthusiasm, which continues to support her goal of putting the appreciation of geology and the landscape on par with cultural pursuits.