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NARROW
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
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Africa
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Kalahari Desert (1)
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Southern Africa
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Botswana (1)
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South Africa (1)
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Zimbabwe (1)
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Antarctica
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Transantarctic Mountains (1)
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Asia
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Arabian Peninsula
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Abu Dhabi (1)
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Far East
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China
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Xinjiang China
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Indonesia (1)
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Atlantic Ocean
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Bear Lake (1)
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Canada
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Eastern Canada
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Newfoundland and Labrador
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Labrador (2)
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Ontario
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Quebec (3)
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Nunavut
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Mexico
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Pacific Ocean
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West Pacific
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New Mexico
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Oregon (3)
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Barnwell County South Carolina (1)
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Utah
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Washington
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commodities
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petroleum
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water resources (2)
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elements, isotopes
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carbon
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C-13 (1)
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C-13/C-12 (11)
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C-14 (9)
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organic carbon (4)
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chemical ratios (1)
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halogens
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bromine
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bromide ion (2)
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chlorine
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chloride ion (3)
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Cl-36 (1)
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iodine
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I-129 (2)
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hydrogen
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D/H (14)
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isotope ratios (22)
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isotopes
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Al-26 (1)
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C-14 (9)
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Cl-36 (1)
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stable isotopes
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C-13 (1)
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C-13/C-12 (11)
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Cl-37/Cl-35 (1)
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D/H (14)
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deuterium (9)
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He-3 (2)
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He-4/He-3 (4)
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O-16 (1)
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O-18 (1)
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O-18/O-16 (21)
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S-34/S-32 (7)
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metals
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Be-10 (1)
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magnesium (1)
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strontium
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Sr-87/Sr-86 (2)
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aluminum
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Al-26 (1)
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technetium
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Tc-99 (1)
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nitrogen (1)
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helium
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He-3 (2)
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He-4/He-3 (4)
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neon (2)
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oxygen
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O-16 (1)
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O-18 (1)
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O-18/O-16 (21)
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-
sulfur
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S-34/S-32 (7)
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-
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fossils
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Plantae
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Spermatophyta
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Angiospermae
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Rosidae (1)
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geologic age
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Tertiary
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Paleogene (1)
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Paleozoic
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illite (1)
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palygorskite (1)
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sulfates
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anhydrite (1)
-
-
-
Primary terms
-
absolute age (8)
-
Africa
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Kalahari Desert (1)
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Southern Africa
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Botswana (1)
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South Africa (1)
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Zimbabwe (1)
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Antarctica
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East Antarctic ice sheet (1)
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Transantarctic Mountains (1)
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Asia
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Arabian Peninsula
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Saudi Arabia (1)
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United Arab Emirates
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Abu Dhabi (1)
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-
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Far East
-
China
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Xinjiang China
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Junggar Basin (1)
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-
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Indonesia (1)
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-
-
Atlantic Ocean
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Equatorial Atlantic (1)
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Ceara Rise (1)
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-
-
atmosphere (3)
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brines (5)
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Canada
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Eastern Canada
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Newfoundland and Labrador
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Labrador (2)
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Newfoundland (2)
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Ontario
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Lambton County Ontario (1)
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Sudbury Basin (1)
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Quebec (3)
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Nunavut
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Devon Island (1)
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Ellesmere Island (1)
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Queen Elizabeth Islands
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Devon Island (1)
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Ellesmere Island (1)
-
-
Ungava (1)
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Western Canada
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British Columbia (1)
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Northwest Territories (2)
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Yukon Territory (2)
-
-
-
carbon
-
C-13 (1)
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C-13/C-12 (11)
-
C-14 (9)
-
organic carbon (4)
-
-
Cenozoic
-
Quaternary
-
Holocene
-
upper Holocene (1)
-
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Pleistocene
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Bandelier Tuff (1)
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upper Pleistocene (2)
-
-
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Tertiary
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Neogene
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Miocene
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upper Miocene
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Tortonian (1)
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Paleogene (1)
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clay mineralogy (2)
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climate change (4)
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construction materials (1)
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crystal structure (1)
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dams (1)
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data processing (2)
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Deep Sea Drilling Project
-
Leg 22
-
DSDP Site 211 (1)
-
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Leg 27
-
DSDP Site 261 (1)
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DSDP Site 262 (1)
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economic geology (3)
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engineering geology (1)
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Europe
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Alps
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Central Europe
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Germany
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Switzerland
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Jutland (1)
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Italy
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-
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Western Europe
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Ardennes (1)
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France
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hydrogeology (10)
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hydrology (18)
-
igneous rocks
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diabase (1)
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volcanic rocks
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basalts (3)
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pyroclastics
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tuff (1)
-
-
-
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Indian Ocean
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Persian Gulf (2)
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Argo abyssal plain (1)
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Ninetyeast Ridge (1)
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-
-
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isotopes
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radioactive isotopes
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Al-26 (1)
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C-14 (9)
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Cl-36 (1)
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Co-60 (1)
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Cs-137 (1)
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I-129 (2)
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Sr-90 (1)
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Tc-99 (1)
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tritium (70)
-
-
stable isotopes
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C-13 (1)
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C-13/C-12 (11)
-
Cl-37/Cl-35 (1)
-
D/H (14)
-
deuterium (9)
-
He-3 (2)
-
He-4/He-3 (4)
-
O-16 (1)
-
O-18 (1)
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O-18/O-16 (21)
-
S-34/S-32 (7)
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Sr-87/Sr-86 (2)
-
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lava (1)
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magmas (1)
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mantle (2)
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East Mediterranean (1)
-
-
Mesozoic
-
Cretaceous
-
Lower Greensand (1)
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Upper Cretaceous
-
Senonian (1)
-
-
-
-
metal ores
-
uranium ores (2)
-
-
metals
-
actinides
-
plutonium (1)
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thorium (1)
-
uranium (1)
-
-
alkali metals
-
cesium
-
Cs-137 (1)
-
-
sodium (1)
-
-
alkaline earth metals
-
beryllium
-
Be-10 (1)
-
-
magnesium (1)
-
strontium
-
Sr-87/Sr-86 (2)
-
Sr-90 (1)
-
-
-
aluminum
-
Al-26 (1)
-
-
chromium (1)
-
cobalt
-
Co-60 (1)
-
-
technetium
-
Tc-99 (1)
-
-
-
metamorphic rocks
-
mylonites (1)
-
-
Mexico
-
Chihuahua Mexico (1)
-
-
mineral exploration (2)
-
nitrogen (1)
-
noble gases
-
argon (1)
-
helium
-
He-3 (2)
-
He-4/He-3 (4)
-
-
neon (2)
-
-
North America
-
Appalachian Basin (1)
-
Basin and Range Province (4)
-
Canadian Shield (1)
-
Hueco Bolson (1)
-
Michigan Basin (1)
-
Rocky Mountains
-
U. S. Rocky Mountains
-
Wasatch Range (2)
-
-
-
-
nuclear facilities (1)
-
Ocean Drilling Program
-
Leg 121
-
ODP Site 757 (1)
-
-
Leg 123
-
ODP Site 765 (1)
-
-
Leg 154
-
ODP Site 926 (1)
-
-
-
oil and gas fields (1)
-
oxygen
-
O-16 (1)
-
O-18 (1)
-
O-18/O-16 (21)
-
-
Pacific Ocean
-
South Pacific
-
Southwest Pacific
-
Bismarck Sea
-
Manus Basin (1)
-
-
-
-
West Pacific
-
Southwest Pacific
-
Bismarck Sea
-
Manus Basin (1)
-
-
-
-
-
paleomagnetism (2)
-
Paleozoic
-
Devonian (1)
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Silurian (1)
-
-
permafrost (3)
-
petroleum
-
natural gas
-
coalbed methane (1)
-
-
-
Plantae
-
Spermatophyta
-
Angiospermae
-
Dicotyledoneae
-
Rosidae (1)
-
-
-
-
-
plate tectonics (1)
-
pollution (18)
-
remote sensing (1)
-
sea water (2)
-
sedimentary rocks
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carbonate rocks
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chalk (2)
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limestone (1)
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clastic rocks
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sandstone (1)
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sedimentary structures (1)
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sedimentation (1)
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sediments
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clastic sediments
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clay (1)
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sand (2)
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marine sediments (2)
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peat (1)
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soils
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Desert soils (2)
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Entisols (1)
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Regosols (1)
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South America
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Andes
-
Central Andes (1)
-
-
Argentina (1)
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Chile (1)
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-
springs (8)
-
sulfur
-
S-34/S-32 (7)
-
-
tectonics
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neotectonics (1)
-
-
thermal waters (4)
-
United States
-
Amargosa Desert (4)
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Atlantic Coastal Plain
-
Southern Atlantic Coastal Plain (1)
-
-
Book Cliffs (1)
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California (1)
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Colorado (1)
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Colorado Plateau (1)
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Floridan Aquifer (1)
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Idaho
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Snake River plain (1)
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Snake River Plain Aquifer (1)
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Illinois (1)
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Midwest (1)
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Mojave Desert (3)
-
Nevada
-
Nye County Nevada
-
Beatty Nevada (2)
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Yucca Mountain (1)
-
-
-
New Mexico
-
Los Alamos County New Mexico
-
Los Alamos National Laboratory (2)
-
-
Taos County New Mexico
-
Questa Mine (1)
-
-
-
Oregon (3)
-
South Carolina
-
Aiken County South Carolina
-
Aiken South Carolina (1)
-
-
Barnwell County South Carolina (1)
-
Savannah River Site (9)
-
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U. S. Rocky Mountains
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Wasatch Range (2)
-
-
Utah
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Washington County Utah (1)
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Washington
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Benton County Washington (1)
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Hanford Site (2)
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volcanology (1)
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well-logging (2)
-
-
sedimentary rocks
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sedimentary rocks
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carbonate rocks
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chalk (2)
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limestone (1)
-
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clastic rocks
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sandstone (1)
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-
-
-
sedimentary structures
-
sedimentary structures (1)
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sediments
-
sediments
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clastic sediments
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boulders (3)
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clay (1)
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sand (2)
-
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marine sediments (2)
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peat (1)
-
-
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soils
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soils
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Desert soils (2)
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Entisols (1)
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Luvisols (1)
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Regosols (1)
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tritium
A study of the gas–water characteristics and their implications for the coalbed methane accumulation modes in the Southern Junggar Basin, China
Pleistocene to recent geomorphic and incision history of the northern Rio Grande gorge, New Mexico: Constraints from field mapping and cosmogenic 3 He surface exposure dating
Carbon cycling at the Sunda margin, Indonesia: A regional study with global implications
Abstract Groundwater pathways and residence times are controlled by aquifer flow and storage properties, which, in weathered/fractured hard rock aquifers, are characterized by high spatial heterogeneity. Building on earlier work in a metamorphic aquifer in NW Ireland, new clay mineralogy and analyses of geophysical data provided high spatial resolution constraints on the variations in aquifer properties. Groundwater storage values derived from magnetic resonance sounding and electrical resistivity tomography were found to largely vary laterally and with depth, by orders of magnitude. The subsequent implementation of hillslope, two-dimensional numerical groundwater models showed that incorporating heterogeneity from geophysical data in model parametrization led to the best fit to observations compared with a reference model based on borehole data alone. Model simulations further revealed that (1) strong spatial heterogeneity produces deeper, longer groundwater flow paths and higher age mixing, in agreement with the mixed sub-modern/modern ages (mostly <50 years) provided by independent tritium data, and (2) areas with extensive weathering/fracturing are correlated with seepage zones of older groundwater resulting from changes in the flow directions and are likely to act as drainage structures for younger groundwater on a catchment or regional scale. Implications for groundwater resilience to climate extremes and surface pollution are discussed together with recommendations for further research.