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NARROW
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
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Algeria (1)
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Tunisia (2)
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Asia
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petroleum
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shale oil (5)
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placers (1)
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elements, isotopes
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carbon
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chlorine
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hydrogen
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stable isotopes
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metals
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lead (4)
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geologic age
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lower Paleogene (1)
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Mesozoic
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Cretaceous
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Triassic
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Paleozoic
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Carboniferous
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Devonian
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Upper Devonian
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lower Paleozoic
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Penobscot Formation (1)
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New Albany Shale (1)
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Katian (1)
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Maquoketa Formation (1)
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Permian
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Upper Permian (2)
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Silurian
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Lower Silurian
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Llandovery
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Rhuddanian (1)
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Taiyuan Formation (1)
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upper Paleozoic
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Shanxi Formation (1)
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igneous rocks
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igneous rocks
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sheet silicates
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-
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sulfates
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selenite (1)
-
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sulfides
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arsenopyrite (1)
-
pyrite (2)
-
-
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Primary terms
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Africa
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North Africa
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Algeria (1)
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Tunisia (2)
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Asia
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Far East
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China
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Indian Peninsula
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India
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Middle East
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Turkey
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Atlantic Ocean
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bacteria (1)
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bibliography (1)
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Canada
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Ontario (2)
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Quebec (2)
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Western Canada
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Alberta (4)
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British Columbia (2)
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carbon
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C-13/C-12 (4)
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C-14 (2)
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organic carbon (1)
-
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Cenozoic
-
Tertiary
-
Neogene
-
Miocene
-
Guantao Formation (1)
-
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Pliocene (2)
-
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Paleogene
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Eocene
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middle Eocene
-
Lutetian (1)
-
-
-
Kenai Group (1)
-
lower Paleogene (1)
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Oligocene (1)
-
Tyonek Formation (2)
-
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Shahejie Formation (2)
-
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chemical analysis (1)
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clay mineralogy (48)
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coal deposits (3)
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construction materials
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crystal chemistry (5)
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crystal structure (6)
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deformation (1)
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diagenesis (3)
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Europe
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hydrogen
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D/H (3)
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hydrology (5)
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igneous rocks
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volcanic rocks
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intrusions (2)
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Ra-226 (1)
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Ra-228 (1)
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-
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stable isotopes
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C-13/C-12 (4)
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D/H (3)
-
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land use (1)
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limestone deposits (1)
-
Mesozoic
-
Cretaceous
-
Mancos Shale (1)
-
Upper Cretaceous
-
Belly River Formation (1)
-
Fruitland Formation (1)
-
Gallup Sandstone (1)
-
Horseshoe Canyon Formation (1)
-
Mesaverde Group (1)
-
-
-
Triassic
-
Lower Triassic (1)
-
Montney Formation (1)
-
Upper Triassic
-
Yanchang Formation (1)
-
-
-
Vaca Muerta Formation (1)
-
-
metals
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alkali metals
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cesium (4)
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potassium (2)
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rubidium (1)
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-
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alkaline earth metals
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barium (1)
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calcium (4)
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magnesium (2)
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radium
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Ra-226 (1)
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Ra-228 (1)
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strontium
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Sr-85 (1)
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aluminum (3)
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arsenic (3)
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cadmium (2)
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chromium (2)
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copper (3)
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iron
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lead (4)
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mercury (5)
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rare earths
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lanthanum (2)
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zinc (2)
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metamorphic rocks
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metamorphism (1)
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mineral deposits, genesis (1)
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North America
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oil and gas fields (4)
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oxygen (3)
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Pacific Ocean
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West Pacific
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Northwest Pacific
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Yellow Sea
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Bohai Sea
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Bohai Bay (1)
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paleogeography (2)
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Paleozoic
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Cambrian
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Lower Cambrian (1)
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Carboniferous
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Mississippian (1)
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Upper Carboniferous
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Westphalian (1)
-
-
-
Devonian
-
Upper Devonian
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Frasnian (1)
-
-
-
lower Paleozoic
-
Penobscot Formation (1)
-
-
New Albany Shale (1)
-
Ordovician
-
Upper Ordovician
-
Hirnantian (1)
-
Katian (1)
-
Maquoketa Formation (1)
-
Wufeng Formation (1)
-
-
-
Permian
-
Upper Permian (2)
-
-
Silurian
-
Lower Silurian
-
Llandovery
-
Rhuddanian (1)
-
-
-
-
Taiyuan Formation (1)
-
upper Paleozoic
-
Shanxi Formation (1)
-
-
-
petroleum
-
natural gas
-
coalbed methane (10)
-
shale gas (6)
-
-
shale oil (5)
-
-
phase equilibria (3)
-
phosphorus (1)
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placers (1)
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pollution (25)
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reclamation (2)
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rock mechanics (1)
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sea water (1)
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sedimentary rocks
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clastic rocks
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sedimentary structures
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planar bedding structures
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sediments
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sodium sulfate (1)
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soils
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Andisols (1)
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Clay soils (1)
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Entisols (1)
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Ferralsols (1)
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Inceptisols (1)
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loam (1)
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Ultisols (1)
-
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South America
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Argentina
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Neuquen Basin (1)
-
-
Brazil
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Parana Brazil (1)
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Santa Catarina Brazil (1)
-
-
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structural analysis (1)
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sulfur (1)
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symposia (1)
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tectonics (1)
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thermal analysis (5)
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United States
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Alaska (2)
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California
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Southern California (1)
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Colorado (2)
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Illinois Basin (1)
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Maine (1)
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Texas (2)
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Hanford Site (2)
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West Virginia
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waste disposal (4)
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sedimentary rocks
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sedimentary rocks
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bauxite (1)
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clastic rocks
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bentonite (4)
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black shale (1)
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claystone (2)
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marl (1)
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mudstone (4)
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sandstone (2)
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shale (7)
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siltstone (3)
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tonstein (1)
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coal
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anthracite (1)
-
bituminous coal (4)
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lignite (1)
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subbituminous coal (1)
-
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oil sands (2)
-
-
-
sedimentary structures
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sedimentary structures
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planar bedding structures
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bedding (1)
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sediments
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sediments
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clastic sediments
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clay (3)
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sand (1)
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peat (1)
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soils
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Oxisols (2)
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soils
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Entisols (1)
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Inceptisols (1)
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loam (1)
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Ultisols (1)
-
-
desorption
Enhancement of the adsorption properties of two natural bentonites by ion exchange: equilibrium, kinetics and thermodynamic study
Comparing seepage and selenium desorption in blasted-rock fills using two reclamation techniques
Pore structure characteristics and its effect on adsorption capacity of Niutitang marine shale in Sangzhi block, southern China
Nanopetrophysical characterization of the Mancos Shale Formation in the San Juan Basin of northwestern New Mexico, USA
A quick analytical approach to estimate both free versus sorbed hydrocarbon contents in liquid-rich source rocks
Radium and strontium binding by a modified bauxite refinery residue – isotope exchange studies of pH-dependence, reversibility and ageing
Fractal characteristics of the anisotropic microstructure and pore distribution of low-rank coal
Evaluation of the efficacy of halloysite nanotubes in the removal of acidic and basic dyes from aqueous solution
A model for porosity evolution in shale reservoirs: An example from the Upper Devonian Duvernay Formation, Western Canada Sedimentary Basin
The whole-aperture pore-structure characteristics of marine-continental transitional shale facies of the Taiyuan and Shanxi Formations in the Qinshui Basin, North China
Quantification and characterization of hydrocarbon-filled porosity in oil-rich shales using integrated thermal extraction, pyrolysis, and solvent extraction
Iron catalyst supported on modified kaolin for catalytic wet peroxide oxidation
New results of Boda Claystone research: Genesis, mineralogy, geochemistry, petrophysics
Abstract Boda Claystone is a very tight clayey rock with extreme low porosity and permeability, nano-size pores and small amounts of swelling clays. Due to this character it is ideal as a potential host rock for research into the possibilities of high-level waste deposition in geological formation. Though the research started more than 30 years ago, the genesis, the geotectonic history of the Boda Claystone Formation (BCF) and the geology of surrounding areas has only been sketched out recently. On the basis of research of the past few years the process of sedimentation of different blocks was able to be reconstructed. Equipment and methodological developments were needed for the investigation of reservoir geological and hydrodynamic behaviour of this rock, which began in the early 2000s. Based on them the pore structure and reservoir could be characterized in detail. Only theoretical approaches were available for the chemical composition of free porewater. Traditional water-extracting methods were not adaptable because of excessively low porosity and nano-scale pore size distribution. Hence, new ways have to be found for getting enough water for analysis. These new results of BCF research help to prepare more sophisticated and directed experiments, in which there is a great interest internationally.