Update search
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
North Africa
-
Algeria
-
Great Kabylia (1)
-
-
Atlas Mountains
-
Moroccan Atlas Mountains
-
High Atlas (5)
-
-
-
Maghreb (1)
-
Morocco
-
Moroccan Atlas Mountains
-
High Atlas (5)
-
-
Rif (1)
-
-
Tunisia (1)
-
-
Southern Africa
-
Karoo Basin (1)
-
Lesotho (1)
-
South Africa (1)
-
-
-
Arctic Ocean
-
Barents Sea (1)
-
Norwegian Sea
-
Haltenbanken (1)
-
-
-
Arctic region
-
Greenland
-
East Greenland (1)
-
-
-
Asia
-
Arabian Peninsula
-
Kuwait (1)
-
Saudi Arabia (1)
-
-
Central Asia
-
Pamirs (1)
-
-
Far East
-
China
-
Fujian China (1)
-
Guangdong China (1)
-
Hunan China (1)
-
Sichuan Basin (1)
-
Sichuan China (1)
-
Xizang China (1)
-
-
-
Himalayas (1)
-
Indian Peninsula
-
India
-
Andhra Pradesh India (1)
-
-
-
Middle East
-
Turkey
-
Anatolia (1)
-
Antalya Turkey (1)
-
Taurus Mountains (1)
-
-
-
Tomsk Russian Federation (1)
-
Tyumen Russian Federation
-
Yamal-Nenets Russian Federation
-
Taz Basin (1)
-
-
-
West Siberia (2)
-
-
Atlantic Ocean
-
North Atlantic
-
North Sea
-
East Shetland Basin (1)
-
Viking Graben (3)
-
-
-
-
Australasia
-
Australia
-
Western Australia (1)
-
-
-
Black Rock Desert (1)
-
Blue Mountains (1)
-
Canada
-
Nunavut
-
Sverdrup Basin (2)
-
-
Queen Elizabeth Islands
-
Sverdrup Basin (2)
-
-
Stikinia Terrane (2)
-
Western Canada
-
Alberta (2)
-
British Columbia
-
Atlin British Columbia (1)
-
Queen Charlotte Islands (3)
-
-
Canadian Cordillera (1)
-
Northwest Territories (2)
-
-
Whitehorse Trough (1)
-
-
Cardigan Bay (1)
-
Commonwealth of Independent States
-
Caucasus (1)
-
Russian Federation
-
Tomsk Russian Federation (1)
-
Tyumen Russian Federation
-
Yamal-Nenets Russian Federation
-
Taz Basin (1)
-
-
-
-
Transcaucasia (1)
-
Ukraine
-
Crimea Ukraine (1)
-
-
West Siberia (2)
-
-
El Paso Mountains (1)
-
Europe
-
Alps (3)
-
Carpathians
-
Slovakian Carpathians (1)
-
Western Carpathians (1)
-
-
Caucasus (1)
-
Central Europe
-
Germany (2)
-
Hungary
-
Bakony Mountains (1)
-
-
Slovakia
-
Slovakian Carpathians (1)
-
-
-
Southern Europe
-
Greece (1)
-
Iberian Peninsula
-
Gibraltar (1)
-
Portugal (1)
-
Spain
-
Andalusia Spain
-
Almeria Spain (1)
-
-
Basque Provinces Spain (1)
-
Betic Cordillera (1)
-
Cantabrian Basin (1)
-
Subbetic Zone (1)
-
Valencia region
-
Alicante Spain (1)
-
-
-
-
Italy
-
Apennines
-
Central Apennines (1)
-
Northern Apennines (1)
-
Southern Apennines (1)
-
-
Basilicata Italy
-
Potenza Italy (1)
-
-
Calabria Italy (1)
-
Marches Italy (2)
-
Sardinia Italy (1)
-
Sicily Italy (1)
-
Trentino-Alto Adige Italy
-
Trento Italy (2)
-
-
Tuscany Italy (2)
-
Umbria Italy (2)
-
-
-
Transcaucasia (1)
-
Ukraine
-
Crimea Ukraine (1)
-
-
Western Europe
-
France
-
Aveyron France (1)
-
Burgundy (1)
-
Causses (1)
-
Central Massif
-
Morvan (1)
-
-
Cote-d'Or France (1)
-
Gard France (1)
-
Lorraine (1)
-
Lot France (1)
-
Lozere France (1)
-
Moselle France (1)
-
-
Scandinavia
-
Denmark
-
Sjaelland (1)
-
-
-
United Kingdom
-
Great Britain
-
England
-
Cheshire England (1)
-
Dorset England (4)
-
Lincolnshire England (1)
-
Somerset England (1)
-
Yorkshire England
-
North Yorkshire England (3)
-
-
-
Scotland
-
Hebrides
-
Inner Hebrides
-
Isle of Skye (1)
-
Raasay (1)
-
-
-
Highland region Scotland
-
Inverness-shire Scotland
-
Isle of Skye (1)
-
Raasay (1)
-
-
-
-
Wales
-
Glamorgan Wales (2)
-
South Wales (1)
-
-
-
-
-
-
Graham Island (1)
-
Indian Ocean
-
East Indian Ocean (1)
-
Exmouth Plateau (1)
-
-
Mexico
-
Sonora Mexico (1)
-
-
Midlands (1)
-
North America
-
Intermontane Belt (1)
-
North American Cordillera
-
Canadian Cordillera (1)
-
-
-
North Sea region (1)
-
Pacific Coast (1)
-
Pacific region (1)
-
Sierra Nevada (2)
-
South America
-
Andes (1)
-
Argentina (2)
-
Chile (3)
-
-
United States
-
Alaska
-
Sleetmute Quadrangle (1)
-
-
Arizona
-
Mohave County Arizona (1)
-
-
Atlantic Coastal Plain (1)
-
California
-
Northern California (1)
-
-
Colorado Plateau (1)
-
Klamath Mountains (1)
-
Nevada
-
Mineral County Nevada (1)
-
-
Newark Basin (1)
-
-
USSR (1)
-
-
commodities
-
energy sources (1)
-
oil and gas fields (2)
-
petroleum
-
natural gas (1)
-
-
-
elements, isotopes
-
carbon
-
C-13/C-12 (6)
-
-
isotope ratios (6)
-
isotopes
-
stable isotopes
-
C-13/C-12 (6)
-
N-15/N-14 (1)
-
Nd-144/Nd-143 (1)
-
O-18/O-16 (4)
-
Os-188/Os-187 (1)
-
S-34/S-32 (2)
-
Sr-87/Sr-86 (1)
-
-
-
metals
-
alkaline earth metals
-
strontium
-
Sr-87/Sr-86 (1)
-
-
-
manganese (1)
-
platinum group
-
osmium
-
Os-188/Os-187 (1)
-
-
-
rare earths
-
neodymium
-
Nd-144/Nd-143 (1)
-
-
-
zinc (1)
-
-
nitrogen
-
N-15/N-14 (1)
-
-
oxygen
-
O-18/O-16 (4)
-
-
sulfur
-
S-34/S-32 (2)
-
-
-
fossils
-
burrows (2)
-
Chordata
-
Vertebrata
-
Tetrapoda
-
Amphibia
-
Labyrinthodontia
-
Temnospondyli (1)
-
-
-
Mammalia (1)
-
Reptilia
-
Anapsida
-
Testudines (1)
-
-
Diapsida
-
Archosauria
-
Crocodilia (2)
-
dinosaurs
-
Ornithischia (1)
-
Saurischia
-
Sauropodomorpha
-
Sauropoda (1)
-
-
Theropoda (3)
-
-
-
Pterosauria (1)
-
Thecodontia
-
Aetosauria (1)
-
-
-
Ichthyosauria
-
Ichthyosaurus (1)
-
-
-
Synapsida
-
Pelycosauria (1)
-
Therapsida
-
Cynodontia (2)
-
-
-
-
-
-
-
ichnofossils (1)
-
Invertebrata
-
Brachiopoda (2)
-
Cnidaria
-
Anthozoa
-
Zoantharia
-
Rugosa (1)
-
-
-
-
Mollusca
-
Bivalvia
-
Ostreoidea
-
Gryphaea (1)
-
-
Pterioida
-
Pteriina
-
Pectinacea
-
Pectinidae (1)
-
-
-
-
-
Cephalopoda
-
Ammonoidea
-
Ammonites (4)
-
Psiloceratida (2)
-
-
-
-
Protista
-
Foraminifera
-
Miliolina
-
Miliolacea (1)
-
-
Rotaliina
-
Nodosariacea (1)
-
-
Textulariina
-
Ammodiscacea (1)
-
-
-
Radiolaria (2)
-
-
-
microfossils
-
Conodonta (1)
-
-
palynomorphs
-
Dinoflagellata (5)
-
miospores
-
pollen (2)
-
-
-
Plantae
-
algae
-
Coccolithophoraceae (1)
-
nannofossils (2)
-
-
-
tracks (1)
-
-
geochronology methods
-
paleomagnetism (3)
-
Sr/Sr (1)
-
U/Pb (3)
-
-
geologic age
-
Cenozoic
-
Quaternary
-
Holocene
-
Boreal (1)
-
-
-
Tertiary
-
Paleogene (1)
-
-
-
Mesozoic
-
Antalya Complex (1)
-
Cretaceous
-
Lower Cretaceous
-
Albian (1)
-
Aptian (1)
-
Neocomian (1)
-
Valanginian (1)
-
-
Upper Cretaceous
-
Cenomanian (1)
-
-
-
Jurassic
-
Clarens Formation (1)
-
Fernie Formation (1)
-
Lower Jurassic
-
Carixian (2)
-
Domerian (2)
-
Dunlin Group (2)
-
Hettangian (24)
-
Laberge Group (1)
-
Lotharingian (1)
-
lower Liassic (65)
-
middle Liassic (18)
-
Nordegg Member (1)
-
Pliensbachian (27)
-
Sinemurian (84)
-
Sunrise Formation (1)
-
Toarcian
-
lower Toarcian (1)
-
-
Triassic-Jurassic boundary (1)
-
upper Liassic (10)
-
-
Middle Jurassic
-
Aalenian (5)
-
Bajocian (3)
-
Bathonian (2)
-
Callovian (4)
-
Dogger (1)
-
-
Oxford Clay (2)
-
Upper Jurassic
-
Kimmeridge Clay (1)
-
Kimmeridgian (4)
-
Lusitanian (1)
-
Oxfordian (9)
-
Portlandian (2)
-
Tithonian (1)
-
-
-
lower Mesozoic (1)
-
Moenave Formation (1)
-
Sandilands Formation (1)
-
Statfjord Formation (1)
-
Triassic
-
Upper Triassic
-
Carnian (5)
-
Norian (4)
-
Rhaetian
-
Penarth Group (1)
-
-
Stormberg Series (1)
-
Triassic-Jurassic boundary (1)
-
-
-
-
Paleozoic
-
Carboniferous
-
Pennsylvanian
-
Lower Pennsylvanian (1)
-
-
-
Devonian
-
Lower Devonian (1)
-
-
Permian (1)
-
-
Precambrian
-
Archean
-
Neoarchean (1)
-
-
upper Precambrian
-
Proterozoic
-
Neoproterozoic (1)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
plutonic rocks
-
diabase (1)
-
ultramafics (1)
-
-
volcanic rocks
-
pyroclastics
-
tuff (1)
-
-
-
-
ophiolite (1)
-
-
metamorphic rocks
-
ophiolite (1)
-
turbidite (1)
-
-
minerals
-
carbonates
-
dolomite (1)
-
-
silicates
-
orthosilicates
-
nesosilicates
-
zircon group
-
zircon (3)
-
-
-
-
sheet silicates (1)
-
-
-
Primary terms
-
absolute age (5)
-
Africa
-
North Africa
-
Algeria
-
Great Kabylia (1)
-
-
Atlas Mountains
-
Moroccan Atlas Mountains
-
High Atlas (5)
-
-
-
Maghreb (1)
-
Morocco
-
Moroccan Atlas Mountains
-
High Atlas (5)
-
-
Rif (1)
-
-
Tunisia (1)
-
-
Southern Africa
-
Karoo Basin (1)
-
Lesotho (1)
-
South Africa (1)
-
-
-
Arctic Ocean
-
Barents Sea (1)
-
Norwegian Sea
-
Haltenbanken (1)
-
-
-
Arctic region
-
Greenland
-
East Greenland (1)
-
-
-
Asia
-
Arabian Peninsula
-
Kuwait (1)
-
Saudi Arabia (1)
-
-
Central Asia
-
Pamirs (1)
-
-
Far East
-
China
-
Fujian China (1)
-
Guangdong China (1)
-
Hunan China (1)
-
Sichuan Basin (1)
-
Sichuan China (1)
-
Xizang China (1)
-
-
-
Himalayas (1)
-
Indian Peninsula
-
India
-
Andhra Pradesh India (1)
-
-
-
Middle East
-
Turkey
-
Anatolia (1)
-
Antalya Turkey (1)
-
Taurus Mountains (1)
-
-
-
Tomsk Russian Federation (1)
-
Tyumen Russian Federation
-
Yamal-Nenets Russian Federation
-
Taz Basin (1)
-
-
-
West Siberia (2)
-
-
Atlantic Ocean
-
North Atlantic
-
North Sea
-
East Shetland Basin (1)
-
Viking Graben (3)
-
-
-
-
Australasia
-
Australia
-
Western Australia (1)
-
-
-
biogeography (3)
-
Canada
-
Nunavut
-
Sverdrup Basin (2)
-
-
Queen Elizabeth Islands
-
Sverdrup Basin (2)
-
-
Stikinia Terrane (2)
-
Western Canada
-
Alberta (2)
-
British Columbia
-
Atlin British Columbia (1)
-
Queen Charlotte Islands (3)
-
-
Canadian Cordillera (1)
-
Northwest Territories (2)
-
-
Whitehorse Trough (1)
-
-
carbon
-
C-13/C-12 (6)
-
-
Cenozoic
-
Quaternary
-
Holocene
-
Boreal (1)
-
-
-
Tertiary
-
Paleogene (1)
-
-
-
Chordata
-
Vertebrata
-
Tetrapoda
-
Amphibia
-
Labyrinthodontia
-
Temnospondyli (1)
-
-
-
Mammalia (1)
-
Reptilia
-
Anapsida
-
Testudines (1)
-
-
Diapsida
-
Archosauria
-
Crocodilia (2)
-
dinosaurs
-
Ornithischia (1)
-
Saurischia
-
Sauropodomorpha
-
Sauropoda (1)
-
-
Theropoda (3)
-
-
-
Pterosauria (1)
-
Thecodontia
-
Aetosauria (1)
-
-
-
Ichthyosauria
-
Ichthyosaurus (1)
-
-
-
Synapsida
-
Pelycosauria (1)
-
Therapsida
-
Cynodontia (2)
-
-
-
-
-
-
-
climate change (1)
-
continental shelf (1)
-
data processing (3)
-
diagenesis (3)
-
ecology (1)
-
economic geology (1)
-
energy sources (1)
-
Europe
-
Alps (3)
-
Carpathians
-
Slovakian Carpathians (1)
-
Western Carpathians (1)
-
-
Caucasus (1)
-
Central Europe
-
Germany (2)
-
Hungary
-
Bakony Mountains (1)
-
-
Slovakia
-
Slovakian Carpathians (1)
-
-
-
Southern Europe
-
Greece (1)
-
Iberian Peninsula
-
Gibraltar (1)
-
Portugal (1)
-
Spain
-
Andalusia Spain
-
Almeria Spain (1)
-
-
Basque Provinces Spain (1)
-
Betic Cordillera (1)
-
Cantabrian Basin (1)
-
Subbetic Zone (1)
-
Valencia region
-
Alicante Spain (1)
-
-
-
-
Italy
-
Apennines
-
Central Apennines (1)
-
Northern Apennines (1)
-
Southern Apennines (1)
-
-
Basilicata Italy
-
Potenza Italy (1)
-
-
Calabria Italy (1)
-
Marches Italy (2)
-
Sardinia Italy (1)
-
Sicily Italy (1)
-
Trentino-Alto Adige Italy
-
Trento Italy (2)
-
-
Tuscany Italy (2)
-
Umbria Italy (2)
-
-
-
Transcaucasia (1)
-
Ukraine
-
Crimea Ukraine (1)
-
-
Western Europe
-
France
-
Aveyron France (1)
-
Burgundy (1)
-
Causses (1)
-
Central Massif
-
Morvan (1)
-
-
Cote-d'Or France (1)
-
Gard France (1)
-
Lorraine (1)
-
Lot France (1)
-
Lozere France (1)
-
Moselle France (1)
-
-
Scandinavia
-
Denmark
-
Sjaelland (1)
-
-
-
United Kingdom
-
Great Britain
-
England
-
Cheshire England (1)
-
Dorset England (4)
-
Lincolnshire England (1)
-
Somerset England (1)
-
Yorkshire England
-
North Yorkshire England (3)
-
-
-
Scotland
-
Hebrides
-
Inner Hebrides
-
Isle of Skye (1)
-
Raasay (1)
-
-
-
Highland region Scotland
-
Inverness-shire Scotland
-
Isle of Skye (1)
-
Raasay (1)
-
-
-
-
Wales
-
Glamorgan Wales (2)
-
South Wales (1)
-
-
-
-
-
-
faults (6)
-
folds (1)
-
fractures (2)
-
geochemistry (4)
-
geochronology (1)
-
geophysical methods (1)
-
government agencies
-
survey organizations (1)
-
-
ichnofossils (1)
-
igneous rocks
-
plutonic rocks
-
diabase (1)
-
ultramafics (1)
-
-
volcanic rocks
-
pyroclastics
-
tuff (1)
-
-
-
-
Indian Ocean
-
East Indian Ocean (1)
-
Exmouth Plateau (1)
-
-
intrusions (1)
-
Invertebrata
-
Brachiopoda (2)
-
Cnidaria
-
Anthozoa
-
Zoantharia
-
Rugosa (1)
-
-
-
-
Mollusca
-
Bivalvia
-
Ostreoidea
-
Gryphaea (1)
-
-
Pterioida
-
Pteriina
-
Pectinacea
-
Pectinidae (1)
-
-
-
-
-
Cephalopoda
-
Ammonoidea
-
Ammonites (4)
-
Psiloceratida (2)
-
-
-
-
Protista
-
Foraminifera
-
Miliolina
-
Miliolacea (1)
-
-
Rotaliina
-
Nodosariacea (1)
-
-
Textulariina
-
Ammodiscacea (1)
-
-
-
Radiolaria (2)
-
-
-
isotopes
-
stable isotopes
-
C-13/C-12 (6)
-
N-15/N-14 (1)
-
Nd-144/Nd-143 (1)
-
O-18/O-16 (4)
-
Os-188/Os-187 (1)
-
S-34/S-32 (2)
-
Sr-87/Sr-86 (1)
-
-
-
lava (1)
-
Mesozoic
-
Antalya Complex (1)
-
Cretaceous
-
Lower Cretaceous
-
Albian (1)
-
Aptian (1)
-
Neocomian (1)
-
Valanginian (1)
-
-
Upper Cretaceous
-
Cenomanian (1)
-
-
-
Jurassic
-
Clarens Formation (1)
-
Fernie Formation (1)
-
Lower Jurassic
-
Carixian (2)
-
Domerian (2)
-
Dunlin Group (2)
-
Hettangian (24)
-
Laberge Group (1)
-
Lotharingian (1)
-
lower Liassic (65)
-
middle Liassic (18)
-
Nordegg Member (1)
-
Pliensbachian (27)
-
Sinemurian (84)
-
Sunrise Formation (1)
-
Toarcian
-
lower Toarcian (1)
-
-
Triassic-Jurassic boundary (1)
-
upper Liassic (10)
-
-
Middle Jurassic
-
Aalenian (5)
-
Bajocian (3)
-
Bathonian (2)
-
Callovian (4)
-
Dogger (1)
-
-
Oxford Clay (2)
-
Upper Jurassic
-
Kimmeridge Clay (1)
-
Kimmeridgian (4)
-
Lusitanian (1)
-
Oxfordian (9)
-
Portlandian (2)
-
Tithonian (1)
-
-
-
lower Mesozoic (1)
-
Moenave Formation (1)
-
Sandilands Formation (1)
-
Statfjord Formation (1)
-
Triassic
-
Upper Triassic
-
Carnian (5)
-
Norian (4)
-
Rhaetian
-
Penarth Group (1)
-
-
Stormberg Series (1)
-
Triassic-Jurassic boundary (1)
-
-
-
-
metals
-
alkaline earth metals
-
strontium
-
Sr-87/Sr-86 (1)
-
-
-
manganese (1)
-
platinum group
-
osmium
-
Os-188/Os-187 (1)
-
-
-
rare earths
-
neodymium
-
Nd-144/Nd-143 (1)
-
-
-
zinc (1)
-
-
Mexico
-
Sonora Mexico (1)
-
-
nitrogen
-
N-15/N-14 (1)
-
-
North America
-
Intermontane Belt (1)
-
North American Cordillera
-
Canadian Cordillera (1)
-
-
-
ocean floors (1)
-
oil and gas fields (2)
-
orogeny (1)
-
oxygen
-
O-18/O-16 (4)
-
-
Pacific Coast (1)
-
Pacific region (1)
-
paleoclimatology (3)
-
paleoecology (11)
-
paleogeography (13)
-
paleomagnetism (3)
-
paleontology (4)
-
Paleozoic
-
Carboniferous
-
Pennsylvanian
-
Lower Pennsylvanian (1)
-
-
-
Devonian
-
Lower Devonian (1)
-
-
Permian (1)
-
-
palynology (1)
-
palynomorphs
-
Dinoflagellata (5)
-
miospores
-
pollen (2)
-
-
-
petroleum
-
natural gas (1)
-
-
Plantae
-
algae
-
Coccolithophoraceae (1)
-
nannofossils (2)
-
-
-
plate tectonics (4)
-
Precambrian
-
Archean
-
Neoarchean (1)
-
-
upper Precambrian
-
Proterozoic
-
Neoproterozoic (1)
-
-
-
-
reefs (2)
-
sea-floor spreading (1)
-
sea-level changes (13)
-
sedimentary petrology (2)
-
sedimentary rocks
-
carbonate rocks
-
boundstone (1)
-
dolostone (1)
-
grainstone (1)
-
limestone
-
calcarenite (2)
-
micrite (1)
-
-
packstone (1)
-
wackestone (1)
-
-
chemically precipitated rocks
-
chert (1)
-
evaporites (1)
-
-
clastic rocks
-
black shale (3)
-
conglomerate (2)
-
graywacke (1)
-
marl (1)
-
mudstone (7)
-
radiolarite (1)
-
sandstone (7)
-
shale (5)
-
siltstone (3)
-
-
oil sands (1)
-
-
sedimentary structures
-
biogenic structures
-
algal structures
-
algal mats (1)
-
-
bioherms (1)
-
-
secondary structures
-
concretions (3)
-
-
soft sediment deformation
-
clastic dikes (1)
-
-
-
sedimentation (12)
-
sediments
-
carbonate sediments (1)
-
-
shorelines (1)
-
South America
-
Andes (1)
-
Argentina (2)
-
Chile (3)
-
-
stratigraphy (13)
-
structural analysis (1)
-
structural geology (2)
-
sulfur
-
S-34/S-32 (2)
-
-
tectonics
-
salt tectonics (1)
-
-
tectonophysics (1)
-
United States
-
Alaska
-
Sleetmute Quadrangle (1)
-
-
Arizona
-
Mohave County Arizona (1)
-
-
Atlantic Coastal Plain (1)
-
California
-
Northern California (1)
-
-
Colorado Plateau (1)
-
Klamath Mountains (1)
-
Nevada
-
Mineral County Nevada (1)
-
-
Newark Basin (1)
-
-
USSR (1)
-
well-logging (1)
-
-
rock formations
-
Elliot Formation (1)
-
Hazelton Group (1)
-
-
sedimentary rocks
-
sedimentary rocks
-
carbonate rocks
-
boundstone (1)
-
dolostone (1)
-
grainstone (1)
-
limestone
-
calcarenite (2)
-
micrite (1)
-
-
packstone (1)
-
wackestone (1)
-
-
chemically precipitated rocks
-
chert (1)
-
evaporites (1)
-
-
clastic rocks
-
black shale (3)
-
conglomerate (2)
-
graywacke (1)
-
marl (1)
-
mudstone (7)
-
radiolarite (1)
-
sandstone (7)
-
shale (5)
-
siltstone (3)
-
-
oil sands (1)
-
-
shell beds (2)
-
turbidite (1)
-
-
sedimentary structures
-
burrows (2)
-
sedimentary structures
-
biogenic structures
-
algal structures
-
algal mats (1)
-
-
bioherms (1)
-
-
secondary structures
-
concretions (3)
-
-
soft sediment deformation
-
clastic dikes (1)
-
-
-
tracks (1)
-
-
sediments
-
sediments
-
carbonate sediments (1)
-
-
shell beds (2)
-
turbidite (1)
-
GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
Sinemurian
A revision of the ‘coelophysoid-grade’ theropod specimen from the Lower Jurassic of the Isle of Skye (Scotland )
Palynology of the Triassic–Jurassic transition of the Danish Basin (Denmark): a palynostratigraphic zonation of the Gassum–lower Fjerritslev formations
Abstract This chapter describes Lower Jurassic second-order sequences J00 and J10, and their component third-order sequences J1–J6 and J12–J18. Two sequences (J1 and J3) are new, four sequences (J2, J4, J12 and J16) are amended and one sequence (J17) is renamed. A significant unconformity at the base of the J12 sequence (Upper Sinemurian) is present near the base of the Dunlin Group in the North Viking Graben–East Shetland Platform and in the Danish Central Graben, and correlates with an equivalent unconformity around the margins of the London Platform, onshore UK. A marked unconformity at the base of the J16 sequence is recognized in the North Viking Graben and onshore UK, where it is related to structural movements on the Market Weighton High, eastern England. Several levels of carbon enrichment (carbon isotope excursions (CIEs)) and associated geochemical changes tie to J sequences defining maximum flooding surfaces: the Upper Sinemurian CIE equates to the base J6 maximum flooding surface (MFS), the basal Pliensbachian CIE ties to the base J13 MFS, the basal Toarcian CIE relates to the base J17 MFS and the Toarcian Ocean Anoxic Event corresponds with the base J18 MFS.
Abstract The most prolific reservoir package in the SW Barents Sea is currently the Upper Triassic–Middle Jurassic Realgrunnen Subgroup, comprising the main hydrocarbon accumulations in the Goliat, Snøhvit and Johan Castberg fields and the Wisting discovery. The interval continues to be the main target as hydrocarbon exploration ventures further into this region. However, the package varies considerably in thickness and reservoir quality throughout the basin, and it is therefore very important to understand how this package developed and what has affected it in the time since it was deposited. Here we review controls on the tectonostratigraphic evolution and facies distribution within the Realgrunnen Subgroup, and exemplify the variability in reservoir characteristics within the subgroup by comparing some key wells in relation to their depositional environment and provenance. New provenance data that record a turnover from reworked Triassic- to Caledonian-sourced mature sediment support facies observations which suggest temporal changes in the depositional environment from marine to fluvial. Much of the variability within the subgroup is attributed the tectonostratigraphic development of the basin that controlled accommodation, facies transitions and sediment distribution. This variability is reflected in subtle differences in reservoir quality important both for exploration and production in the remaining underexplored basin.
Early Jurassic Mafic Magmatism in the Eastern Tethyan Himalaya, Southern Tibet
Fracture stratigraphy of Mesozoic platform carbonates, Agri Valley, southern Italy
High-resolution record of multiple organic carbon-isotope excursions in lacustrine deposits of Upper Sinemurian through Pliensbachian (Early Jurassic) from the Sichuan Basin, China
The Hettangian–Sinemurian (Lower Jurassic) strata of Redcar, Cleveland Basin, NE England: facies and palaeoecology
Tethyan carbonate platform transformations during the Early Jurassic (Sinemurian–Pliensbachian, Southern Alps): Comparison with the Late Triassic Carnian Pluvial Episode
ABSTRACT Lower Mesozoic clastic rocks that unconformably overlie Paleozoic rocks within the Northern Sierra terrane provide clues regarding the evolution of the terrane during a 60 m.y. interval spanning the late Carnian through Bajocian. New detrital-zircon data provide fresh insights into the ages and provenance of these clastic rocks, together with new inferences about the Mesozoic tectonic evolution of the terrane. Previous studies have shown that from the late Carnian to the Sinemurian (~40 m.y.), a 1-km-thick section of subaerial to shallow-marine clastic arc-derived sediment accumulated and shallow-marine carbonate was deposited. At the base of this section, detrital-zircon results suggest the Northern Sierra terrane was located near a source area, possibly the El Paso terrane, containing Permian igneous rocks ranging in age from 270 to 254 Ma. By the earliest Jurassic, the detrital-zircon data suggest the Northern Sierra terrane was located near a source containing latest Triassic–earliest Jurassic igneous rocks spanning 209–186 Ma. The source of this material may have been the Happy Creek volcanic complex of the Black Rock terrane. A deep-marine, anoxic basin developed within the Northern Sierra terrane ca. 187–168 Ma. Approximately 3.5 km of distal turbidites were deposited in this basin. Previously reported geochemical characteristics of these turbidites link the Northern Sierra terrane with arc rock of the Black Rock terrane during this interval, except for a short time in the late Toarcian, when the terrane received an influx of quartz-rich sediment, likely derived from Mesozoic erg deposits now exposed on the Colorado Plateau. Clastic deposition within the Northern Sierra terrane ended in the Bajocian. Eruption of proximal-facies, mafic volcanic rocks and intrusion of hypabyssal rock and 168–163 Ma plutons reflect development of a magmatic arc within the terrane. These igneous rocks represent the first unequivocal evidence that the Northern Sierra terrane was located within a convergent-margin arc during the Triassic and Jurassic. Because detrital-zircon data from Lower Mesozoic strata within the Northern Sierra terrane indicate that it was depositionally linked with differing source areas through time early in the Mesozoic, the terrane may have been mobile along the western margin of Laurentia. There is little evidence from sediment within the Lower Mesozoic section of the terrane that can clearly be tied to the craton or the continental-margin Triassic arc prior to the late Toarcian. The absence of Upper Triassic or Lower Jurassic plutonic rocks within the terrane prior to the mid-Bajocian is also consistent with some form of isolation from the continental-margin arc system. While new detrital-zircon results place the Northern Sierra terrane proximal to the western margin of Laurentia in the late Toarcian, the current location of the terrane likely reflects Early Cretaceous offset along the Mojave–Snow Lake fault.
Abstract Carbonate platforms affected by salt tectonics form important hydrocarbon reservoirs. In an effort to gain new insights of the impact of diapirism on carbonate systems we have undertaken an integrated structural and sedimentological study of Jurassic carbonate platforms of the Moroccan High-Atlas basin. In this natural laboratory, the scale of outcrop exposure is similar in area to a large offshore seismic data set, and field observations provide high details on the geometries and facies distributions around diapiric structures. The Atlas intracontinental basin initiated during the Triassic, contemporaneously with Atlantic rifting. The Triassic synrift sequence includes thick shales and evaporite deposits accumulated in multiple tectonic sub-basins. A thick (>5000m) Jurassic sequence was deposited during an overall post-rift stage in a west-southwest/east-northeast shallow-marine basin open towards the NeoTethys. Since the Sinemurian, sedimentation was mainly carbonates. However, geodynamic events linked with the evolution of the Atlantic margin produced several phases of clastic influx leading to the development of mixed systems (Toarcian and Bathonian). During the Early Pliensbachian, an extensional tectonic event triggered synsedimentary diapiric movements which locally lasted until the Cretaceous. These movements were responsible for the development of narrow diapiric ridges of large extent (>100km), controlled by normal west-southwest/east-northeast relay faults. These ridges were separating several kilometers-wide elongated mini-basins, which subsidence was induced by salt/shale withdrawal. Regionally, diapiric movements have been discontinuous in time and space, leading to significant thickness variations within the different stratigraphic units. However, diapirism has not had any major influence on the nature and distribution of sedimentary systems at the basin scale. The impact of diapirs remains essentially localized in the immediate vicinity of these structures (km-scale), where they affected both stratigraphic geometries and facies distribution. This impact appears to be very different in oolitic and mixed ramp systems in which subtle differentiation of depositional profiles controlled progressive facies variations, or in bioconstructed carbonate systems in which diapiric movements had a major role on the location and morphology of platform margins and associated “micro-rim-basins.” In return, the geometry of the diapirs has been clearly influenced by the lithology of surrounding rocks.