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NARROW
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
East Africa
-
Kenya (1)
-
Lake Turkana (1)
-
Somali Republic (1)
-
Tanzania (2)
-
-
East African Lakes
-
Lake Turkana (1)
-
-
Kalahari Desert (1)
-
Madagascar (1)
-
North Africa
-
Atlas Mountains
-
Moroccan Atlas Mountains
-
Middle Atlas (1)
-
-
-
Egypt (1)
-
Morocco
-
Moroccan Atlas Mountains
-
Middle Atlas (1)
-
-
-
Tunisia (1)
-
-
Southern Africa
-
Namibia (1)
-
South Africa
-
Cape Province region (1)
-
Northern Cape Province South Africa (1)
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Transvaal region (1)
-
-
-
West Africa
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Senegal
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Dakar Senegal (1)
-
-
-
-
Asia
-
Arabian Peninsula
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United Arab Emirates (1)
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Far East
-
China
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Hubei China (1)
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Hunan China (1)
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Jiangxi China (1)
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South China Block (1)
-
-
Japan
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Honshu
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Tochigi Japan (1)
-
-
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Taiwan
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Taiwanese Coastal Range (1)
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Middle East
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Dead Sea (1)
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Israel (1)
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Turkey
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Anatolia (6)
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Ankara Turkey (1)
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Eskisehir Turkey (6)
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Konya Basin (1)
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Konya Turkey (1)
-
-
-
-
Atlantic Ocean
-
Mid-Atlantic Ridge (1)
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North Atlantic
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North Sea (1)
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South Atlantic
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Santos Basin (1)
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-
-
Australasia
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Australia
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Nullarbor Plain (1)
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Western Australia (1)
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-
-
Canada
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Western Canada
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Saskatchewan
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Saskatoon Saskatchewan (1)
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-
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Caribbean region
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West Indies
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Antilles
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Greater Antilles
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Hispaniola
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Dominican Republic (3)
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-
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Commonwealth of Independent States
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Russian Federation
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Moscow Basin (1)
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Murmansk Russian Federation
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Kola Peninsula (1)
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Orenburg Russian Federation (1)
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Urals
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Southern Urals (1)
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Europe
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Moscow Basin (1)
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Murmansk Russian Federation
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Kola Peninsula (1)
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Orenburg Russian Federation (1)
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Southern Europe
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Iberian Peninsula
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Spain
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Andalusia Spain
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Granada Spain (1)
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Betic Cordillera (1)
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Calatayud-Teruel Basin (1)
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Castile Spain
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New Castile Spain (2)
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Castilla-La Mancha Spain
-
Toledo Spain (2)
-
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Catalonia Spain
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Tarragona Spain (1)
-
-
Ebro Basin (2)
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Madrid Basin (2)
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Madrid Spain (2)
-
-
-
Italy
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Apennines
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Ligurian Apennines (1)
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Liguria Italy
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Ligurian Apennines (1)
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Western Europe
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United Kingdom
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Great Britain
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England
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Yorkshire England (1)
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Wales (1)
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-
-
-
-
Indian Ocean
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Ninetyeast Ridge (1)
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Indian Ocean Islands
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Madagascar (1)
-
-
Mediterranean region (1)
-
Mexico
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Durango Mexico (1)
-
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Midlands (1)
-
Oceania
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Melanesia
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New Caledonia (2)
-
-
-
Pacific Ocean (1)
-
Russian Platform (1)
-
South America
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Brazil (1)
-
-
United States
-
Amargosa Desert (3)
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Arizona
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Yavapai County Arizona (1)
-
-
California
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Inyo County California (1)
-
Riverside County California (1)
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Southern California (1)
-
-
Florida
-
Broward County Florida (1)
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Everglades (1)
-
Palm Beach County Florida (1)
-
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Georgia (1)
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Nevada
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Clark County Nevada
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Las Vegas Nevada (1)
-
-
Nye County Nevada (3)
-
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New Mexico
-
Grant County New Mexico (1)
-
-
Texas (2)
-
Utah (2)
-
-
-
commodities
-
aggregate (2)
-
clay deposits (1)
-
industrial minerals (3)
-
magnesite deposits (1)
-
metal ores
-
iron ores (1)
-
nickel ores (3)
-
-
mineral deposits, genesis (4)
-
ornamental materials (1)
-
potash (1)
-
-
elements, isotopes
-
carbon
-
C-13/C-12 (1)
-
-
chemical ratios (2)
-
halogens
-
bromine
-
bromide ion (1)
-
-
fluorine (1)
-
-
isotope ratios (2)
-
isotopes
-
radioactive isotopes
-
Cs-137 (1)
-
K-40 (1)
-
Ra-226 (1)
-
Th-232 (1)
-
-
stable isotopes
-
C-13/C-12 (1)
-
O-18/O-16 (3)
-
Si-29 (3)
-
-
-
large-ion lithophile elements (1)
-
metals
-
actinides
-
thorium
-
Th-232 (1)
-
-
-
alkali metals
-
cesium
-
Cs-137 (1)
-
-
potassium
-
K-40 (1)
-
-
-
alkaline earth metals
-
magnesium (10)
-
radium
-
Ra-226 (1)
-
-
-
aluminum (4)
-
cadmium (1)
-
copper (3)
-
iron
-
ferric iron (3)
-
-
mercury (1)
-
nickel (5)
-
platinum group
-
palladium (1)
-
-
rare earths (1)
-
zinc (1)
-
-
nitrogen (5)
-
oxygen
-
O-18/O-16 (3)
-
-
silicon
-
Si-29 (3)
-
-
-
geologic age
-
Cenozoic
-
Quaternary
-
Pleistocene (6)
-
upper Quaternary (1)
-
-
Tertiary
-
Neogene
-
Miocene
-
middle Miocene (2)
-
-
Pliocene
-
lower Pliocene (1)
-
-
-
Paleogene
-
Eocene
-
lower Eocene
-
Thebes Formation (1)
-
Ypresian (1)
-
-
-
-
-
-
Mesozoic
-
Cretaceous
-
Upper Cretaceous (1)
-
-
Triassic
-
Upper Triassic
-
Mercia Mudstone (1)
-
-
-
-
Paleozoic
-
Cambrian
-
Bonanza King Formation (1)
-
-
Carboniferous
-
Pennsylvanian
-
Middle Pennsylvanian
-
Moscovian (1)
-
-
-
Upper Carboniferous (1)
-
-
Devonian
-
Middle Devonian
-
Prairie Evaporite (1)
-
-
-
Permian
-
Lower Permian
-
Qixia Formation (2)
-
-
Maokou Formation (1)
-
Middle Permian (1)
-
-
-
Phanerozoic (1)
-
-
igneous rocks
-
igneous rocks
-
plutonic rocks
-
granites (2)
-
pegmatite (1)
-
-
volcanic rocks
-
basalts
-
alkali basalts (1)
-
-
glasses (1)
-
pyroclastics
-
tuff (1)
-
-
-
-
-
metamorphic rocks
-
metamorphic rocks
-
metaigneous rocks
-
serpentinite (3)
-
-
metasomatic rocks
-
serpentinite (3)
-
-
-
-
minerals
-
amosite (1)
-
carbonates
-
aragonite (1)
-
calcite (4)
-
dolomite (8)
-
hydrotalcite (1)
-
magnesite (4)
-
-
chromates (1)
-
halides
-
fluorides (1)
-
-
minerals (56)
-
oxides
-
birnessite (1)
-
boehmite (1)
-
brucite (1)
-
gibbsite (1)
-
goethite (1)
-
hematite (1)
-
hydroxides
-
aluminum hydroxides (1)
-
-
lepidocrocite (1)
-
-
silicates
-
asbestos (3)
-
chain silicates
-
amphibole group
-
clinoamphibole
-
actinolite (2)
-
tremolite (3)
-
-
orthoamphibole
-
anthophyllite (1)
-
-
-
pyroxene group
-
orthopyroxene
-
enstatite (1)
-
-
-
tobermorite (1)
-
-
framework silicates
-
feldspar group (1)
-
silica minerals
-
opal (1)
-
quartz (4)
-
-
zeolite group
-
analcime (3)
-
clinoptilolite (3)
-
mordenite (1)
-
-
-
garnierite (4)
-
magnesian silicates (1)
-
sheet silicates
-
cerolite (11)
-
chlorite group
-
chlorite (11)
-
-
clay minerals
-
halloysite (4)
-
hectorite (2)
-
kaolinite (18)
-
montmorillonite (11)
-
saponite (8)
-
smectite (28)
-
stevensite (9)
-
vermiculite (3)
-
-
gyrolite (1)
-
illite (10)
-
mica group
-
biotite (1)
-
glauconite (1)
-
muscovite (2)
-
phlogopite (3)
-
-
palygorskite (72)
-
pyrophyllite (3)
-
sepiolite (198)
-
serpentine group
-
antigorite (3)
-
berthierine (1)
-
chrysotile (3)
-
lizardite (2)
-
serpentine (1)
-
-
talc (5)
-
-
-
sulfates
-
gypsum (1)
-
-
-
Primary terms
-
Africa
-
East Africa
-
Kenya (1)
-
Lake Turkana (1)
-
Somali Republic (1)
-
Tanzania (2)
-
-
East African Lakes
-
Lake Turkana (1)
-
-
Kalahari Desert (1)
-
Madagascar (1)
-
North Africa
-
Atlas Mountains
-
Moroccan Atlas Mountains
-
Middle Atlas (1)
-
-
-
Egypt (1)
-
Morocco
-
Moroccan Atlas Mountains
-
Middle Atlas (1)
-
-
-
Tunisia (1)
-
-
Southern Africa
-
Namibia (1)
-
South Africa
-
Cape Province region (1)
-
Northern Cape Province South Africa (1)
-
Transvaal region (1)
-
-
-
West Africa
-
Senegal
-
Dakar Senegal (1)
-
-
-
-
Asia
-
Arabian Peninsula
-
United Arab Emirates (1)
-
-
Far East
-
China
-
Hubei China (1)
-
Hunan China (1)
-
Jiangxi China (1)
-
South China Block (1)
-
-
Japan
-
Honshu
-
Tochigi Japan (1)
-
-
-
Taiwan
-
Taiwanese Coastal Range (1)
-
-
-
Middle East
-
Dead Sea (1)
-
Israel (1)
-
Turkey
-
Anatolia (6)
-
Ankara Turkey (1)
-
Eskisehir Turkey (6)
-
Konya Basin (1)
-
Konya Turkey (1)
-
-
-
-
Atlantic Ocean
-
Mid-Atlantic Ridge (1)
-
North Atlantic
-
North Sea (1)
-
-
South Atlantic
-
Santos Basin (1)
-
-
-
Australasia
-
Australia
-
Nullarbor Plain (1)
-
Western Australia (1)
-
-
-
bibliography (1)
-
Canada
-
Western Canada
-
Saskatchewan
-
Saskatoon Saskatchewan (1)
-
-
-
-
carbon
-
C-13/C-12 (1)
-
-
Caribbean region
-
West Indies
-
Antilles
-
Greater Antilles
-
Hispaniola
-
Dominican Republic (3)
-
-
-
-
-
-
Cenozoic
-
Quaternary
-
Pleistocene (6)
-
upper Quaternary (1)
-
-
Tertiary
-
Neogene
-
Miocene
-
middle Miocene (2)
-
-
Pliocene
-
lower Pliocene (1)
-
-
-
Paleogene
-
Eocene
-
lower Eocene
-
Thebes Formation (1)
-
Ypresian (1)
-
-
-
-
-
-
chemical analysis (2)
-
clay deposits (1)
-
clay mineralogy (141)
-
crystal chemistry (29)
-
crystal growth (7)
-
crystal structure (39)
-
data processing (3)
-
deformation (4)
-
diagenesis (10)
-
ecology (1)
-
economic geology (3)
-
electron microscopy (1)
-
Europe
-
Moscow Basin (1)
-
Murmansk Russian Federation
-
Kola Peninsula (1)
-
-
Orenburg Russian Federation (1)
-
Southern Europe
-
Iberian Peninsula
-
Spain
-
Andalusia Spain
-
Granada Spain (1)
-
-
Betic Cordillera (1)
-
Calatayud-Teruel Basin (1)
-
Castile Spain
-
New Castile Spain (2)
-
-
Castilla-La Mancha Spain
-
Toledo Spain (2)
-
-
Catalonia Spain
-
Tarragona Spain (1)
-
-
Ebro Basin (2)
-
Madrid Basin (2)
-
Madrid Spain (2)
-
-
-
Italy
-
Apennines
-
Ligurian Apennines (1)
-
-
Liguria Italy
-
Ligurian Apennines (1)
-
-
-
-
Western Europe
-
United Kingdom
-
Great Britain
-
England
-
Yorkshire England (1)
-
-
Wales (1)
-
-
-
-
-
faults (3)
-
folds (4)
-
foundations (1)
-
fractures (1)
-
geochemistry (66)
-
geomorphology (1)
-
ground water (1)
-
igneous rocks
-
plutonic rocks
-
granites (2)
-
pegmatite (1)
-
-
volcanic rocks
-
basalts
-
alkali basalts (1)
-
-
glasses (1)
-
pyroclastics
-
tuff (1)
-
-
-
-
Indian Ocean
-
Ninetyeast Ridge (1)
-
-
Indian Ocean Islands
-
Madagascar (1)
-
-
industrial minerals (3)
-
isotopes
-
radioactive isotopes
-
Cs-137 (1)
-
K-40 (1)
-
Ra-226 (1)
-
Th-232 (1)
-
-
stable isotopes
-
C-13/C-12 (1)
-
O-18/O-16 (3)
-
Si-29 (3)
-
-
-
magnesite deposits (1)
-
marine geology (1)
-
Mediterranean region (1)
-
Mesozoic
-
Cretaceous
-
Upper Cretaceous (1)
-
-
Triassic
-
Upper Triassic
-
Mercia Mudstone (1)
-
-
-
-
metal ores
-
iron ores (1)
-
nickel ores (3)
-
-
metals
-
actinides
-
thorium
-
Th-232 (1)
-
-
-
alkali metals
-
cesium
-
Cs-137 (1)
-
-
potassium
-
K-40 (1)
-
-
-
alkaline earth metals
-
magnesium (10)
-
radium
-
Ra-226 (1)
-
-
-
aluminum (4)
-
cadmium (1)
-
copper (3)
-
iron
-
ferric iron (3)
-
-
mercury (1)
-
nickel (5)
-
platinum group
-
palladium (1)
-
-
rare earths (1)
-
zinc (1)
-
-
metamorphic rocks
-
metaigneous rocks
-
serpentinite (3)
-
-
metasomatic rocks
-
serpentinite (3)
-
-
-
metasomatism (7)
-
Mexico
-
Durango Mexico (1)
-
-
mineral deposits, genesis (4)
-
mineralogy (19)
-
minerals (56)
-
nitrogen (5)
-
Oceania
-
Melanesia
-
New Caledonia (2)
-
-
-
oxygen
-
O-18/O-16 (3)
-
-
Pacific Ocean (1)
-
paleoclimatology (5)
-
paleoecology (1)
-
Paleozoic
-
Cambrian
-
Bonanza King Formation (1)
-
-
Carboniferous
-
Pennsylvanian
-
Middle Pennsylvanian
-
Moscovian (1)
-
-
-
Upper Carboniferous (1)
-
-
Devonian
-
Middle Devonian
-
Prairie Evaporite (1)
-
-
-
Permian
-
Lower Permian
-
Qixia Formation (2)
-
-
Maokou Formation (1)
-
Middle Permian (1)
-
-
-
paragenesis (2)
-
Phanerozoic (1)
-
phase equilibria (5)
-
pollution (8)
-
potash (1)
-
rock mechanics (1)
-
sea water (1)
-
sea-level changes (2)
-
sedimentary petrology (11)
-
sedimentary rocks
-
carbonate rocks
-
chalk (1)
-
limestone
-
micrite (1)
-
oolitic limestone (1)
-
-
travertine (2)
-
-
chemically precipitated rocks
-
chert (1)
-
evaporites
-
salt (1)
-
-
phosphate rocks (1)
-
-
clastic rocks
-
bentonite (6)
-
claystone (1)
-
conglomerate (2)
-
diatomite (1)
-
marl (2)
-
sandstone (1)
-
shale (1)
-
siltstone (1)
-
-
-
sedimentary structures
-
bedding plane irregularities
-
ripple marks (1)
-
-
biogenic structures
-
microbial mats (1)
-
-
planar bedding structures
-
cyclothems (1)
-
-
-
sedimentation (7)
-
sediments
-
carbonate sediments (1)
-
clastic sediments
-
alluvium (1)
-
clay (4)
-
cobbles (1)
-
dust (1)
-
pebbles (1)
-
silt (1)
-
-
-
silicon
-
Si-29 (3)
-
-
slope stability (1)
-
soil mechanics (2)
-
soils
-
Calcareous soils (1)
-
laterites (3)
-
-
South America
-
Brazil (1)
-
-
spectroscopy (4)
-
thermal analysis (1)
-
tunnels (1)
-
United States
-
Amargosa Desert (3)
-
Arizona
-
Yavapai County Arizona (1)
-
-
California
-
Inyo County California (1)
-
Riverside County California (1)
-
Southern California (1)
-
-
Florida
-
Broward County Florida (1)
-
Everglades (1)
-
Palm Beach County Florida (1)
-
-
Georgia (1)
-
Nevada
-
Clark County Nevada
-
Las Vegas Nevada (1)
-
-
Nye County Nevada (3)
-
-
New Mexico
-
Grant County New Mexico (1)
-
-
Texas (2)
-
Utah (2)
-
-
waste disposal (1)
-
weathering (8)
-
X-ray analysis (4)
-
-
sedimentary rocks
-
calcrete (2)
-
caliche (1)
-
oolite (1)
-
sedimentary rocks
-
carbonate rocks
-
chalk (1)
-
limestone
-
micrite (1)
-
oolitic limestone (1)
-
-
travertine (2)
-
-
chemically precipitated rocks
-
chert (1)
-
evaporites
-
salt (1)
-
-
phosphate rocks (1)
-
-
clastic rocks
-
bentonite (6)
-
claystone (1)
-
conglomerate (2)
-
diatomite (1)
-
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sepiolite
Sepiolite as an efficient adsorbent for ethylene gas
Removing tar and nicotine from mainstream cigarette smoke using sepiolite-modified filter tips
Hydrothermal solidification of sepiolite into a cemented sepiolite aggregate for humidity regulation and formaldehyde removal
Clay minerals in drilling fluids: functions and challenges
Thermal degradation kinetics of sepiolite
Characterisation and possible hazard of an atypical asbestiform sepiolite associated with aliphatic hydrocarbons from Sassello, Ligurian Apennines, Italy
Micro- and nano-scale study of deformation induced mineral transformations in Mg-phyllosilicate-rich fault gouges from the Galera Fault Zone (Betic Cordillera, SE Spain)
EXPERIMENTAL AND ATOMIC MODELING OF THE ADSORPTION OF ACID AZO DYE 57 TO SEPIOLITE
A groupoid and graph-theoretical analysis of the biopyribole–palysepiole series
A structure-based argument for non-classical crystal growth in natural clay minerals
Abstract: The lacustrine carbonate reservoirs of the South Atlantic host significant accumulations of chemically reactive and Al-free Mg-silicate minerals (e.g. stevensite, kerolite and talc). Petrographic data from units such as the Cretaceous Barra Velha Formation in the Santos Basin suggest that Mg-silicate minerals strongly influenced, and perhaps created, much of the observed secondary porosity. The diagenetic interactions between reactive Mg-silicate minerals and carbonate sediments are, however, poorly known. Here we develop a conceptual model for the origin of secondary porosity in the Barra Velha Formation guided by considerations of the chemistry that triggers Mg-silicate crystallization, as well as the geochemical and mineralogical factors that act as prerequisites for rapid Mg-silicate dissolution during early and late diagenesis. We conclude that sub-littoral zones of volcanically influenced rift lakes would have acted as the locus for widespread Mg-silicate accumulation and preservation. Organic-rich profundal sediments, however, would be especially prone to Mg-silicate dissolution and secondary porosity development. Here, organic matter diagenesis (especially methanogenesis) plays a major role in modifying the dissolved inorganic carbon budget and the pH of sediment porewaters, which preferentially destabilizes and then dissolves Mg-silicates. Together, the sedimentological, stratigraphic and geochemical predictions of the model explain many enigmatic features of the Barra Velha Formation, providing a novel framework for understanding how Mg-silicate–carbonate interactions might generate secondary porosity more broadly in other lacustrine carbonate reservoirs across the South Atlantic.