- 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
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Arctic Ocean
-
Nares Strait (1)
-
-
Arctic region
-
Greenland
-
Disko Island (1)
-
West Greenland (1)
-
-
-
Asia
-
Amur region (1)
-
Amur Russian Federation
-
Zeya-Bureya Basin (2)
-
-
Far East
-
Japan
-
Honshu
-
Hakusan (1)
-
-
-
-
Russian Far East (1)
-
-
Atlantic Ocean
-
North Atlantic
-
Labrador Sea (1)
-
-
-
Baffin Bay (2)
-
Banks Island (2)
-
Canada
-
Arctic Archipelago (1)
-
Western Canada
-
Alberta
-
Calgary Alberta (1)
-
Drumheller Alberta (1)
-
Red Deer River valley (6)
-
-
Manitoba (2)
-
Northwest Territories (3)
-
Red Deer River (1)
-
Saskatchewan (5)
-
Yukon Territory (1)
-
-
-
Chicxulub Crater (1)
-
Commonwealth of Independent States
-
Russian Federation
-
Amur region (1)
-
Amur Russian Federation
-
Zeya-Bureya Basin (2)
-
-
Russian Far East (1)
-
-
-
Cook Inlet (1)
-
North America
-
Great Plains
-
Northern Great Plains (1)
-
-
Western Canada Sedimentary Basin (1)
-
Western Interior
-
Western Interior Seaway (1)
-
-
-
Raton Basin (1)
-
United States
-
Alaska
-
Seldovia Quadrangle (1)
-
-
Colorado
-
Adams County Colorado (1)
-
Arapahoe County Colorado (4)
-
Denver County Colorado
-
Denver Colorado (1)
-
-
Douglas County Colorado (4)
-
El Paso County Colorado (3)
-
Elbert County Colorado (5)
-
Jefferson County Colorado (2)
-
-
Denver Basin (8)
-
Montana
-
Garfield County Montana (1)
-
-
North Dakota
-
Slope County North Dakota (2)
-
-
South Dakota
-
Badlands National Park (2)
-
Corson County South Dakota (2)
-
Pennington County South Dakota (1)
-
-
Western U.S. (1)
-
Wyoming
-
Johnson County Wyoming (1)
-
-
-
-
commodities
-
petroleum (2)
-
-
elements, isotopes
-
carbon
-
C-13/C-12 (1)
-
organic carbon (1)
-
-
isotope ratios (2)
-
isotopes
-
stable isotopes
-
C-13/C-12 (1)
-
O-18/O-16 (1)
-
-
-
oxygen
-
O-18/O-16 (1)
-
-
-
fossils
-
burrows (1)
-
Chordata
-
Vertebrata
-
Tetrapoda
-
Mammalia (4)
-
Reptilia
-
Diapsida
-
Archosauria
-
dinosaurs
-
Ornithischia
-
Ceratopsia
-
Ceratopsidae
-
Triceratops (1)
-
-
-
Ornithopoda
-
Hadrosauridae (4)
-
-
-
Saurischia
-
Theropoda
-
Carnosauria (1)
-
Coelurosauria
-
Tyrannosauridae (1)
-
-
-
-
-
-
-
-
-
-
-
ichnofossils
-
Ophiomorpha (1)
-
-
Invertebrata
-
Arthropoda
-
Mandibulata
-
Crustacea
-
Malacostraca (1)
-
-
-
Trilobitomorpha
-
Trilobita (1)
-
-
-
Mollusca
-
Bivalvia (3)
-
Cephalopoda
-
Ammonoidea
-
Ammonites (3)
-
Baculites (1)
-
Scaphites (1)
-
-
-
-
Protista
-
Foraminifera (2)
-
-
-
microfossils (29)
-
palynomorphs
-
Dinoflagellata (4)
-
miospores
-
pollen (9)
-
-
-
Plantae
-
Pteridophyta (2)
-
Spermatophyta
-
Angiospermae (5)
-
Gymnospermae
-
Coniferales
-
Taxodium (1)
-
-
-
-
-
-
geochronology methods
-
Ar/Ar (1)
-
paleomagnetism (8)
-
U/Pb (2)
-
-
geologic age
-
Cenozoic
-
Quaternary
-
Pleistocene (1)
-
-
Tertiary
-
Neogene
-
Pliocene (1)
-
-
Paleogene
-
Eocene
-
lower Eocene (1)
-
-
Paleocene
-
lower Paleocene
-
Danian (1)
-
K-T boundary (10)
-
Puercan (1)
-
Torrejonian (1)
-
-
middle Paleocene (1)
-
Ravenscrag Formation (1)
-
upper Paleocene
-
Tiffanian (1)
-
-
-
-
-
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous
-
Albian (1)
-
Christopher Formation (1)
-
Isachsen Formation (1)
-
-
Upper Cretaceous
-
Campanian
-
upper Campanian (2)
-
-
Cenomanian (1)
-
Edmonton Group (1)
-
Fox Hills Formation (3)
-
Hell Creek Formation (5)
-
Horseshoe Canyon Formation (5)
-
Kanguk Formation (1)
-
K-T boundary (10)
-
Laramie Formation (1)
-
Maestrichtian
-
upper Maestrichtian (3)
-
-
Pierre Shale (1)
-
Prince Creek Formation (1)
-
Santonian (1)
-
Senonian (13)
-
-
Whitemud Formation (3)
-
-
-
-
igneous rocks
-
igneous rocks
-
volcanic rocks
-
pyroclastics
-
tuff (1)
-
-
-
-
volcanic ash (1)
-
-
minerals
-
oxides
-
goethite (1)
-
hematite (1)
-
maghemite (1)
-
magnetite (1)
-
-
silicates
-
orthosilicates
-
nesosilicates
-
zircon group
-
zircon (2)
-
-
-
-
-
-
Primary terms
-
absolute age (3)
-
Arctic Ocean
-
Nares Strait (1)
-
-
Arctic region
-
Greenland
-
Disko Island (1)
-
West Greenland (1)
-
-
-
Asia
-
Amur region (1)
-
Amur Russian Federation
-
Zeya-Bureya Basin (2)
-
-
Far East
-
Japan
-
Honshu
-
Hakusan (1)
-
-
-
-
Russian Far East (1)
-
-
Atlantic Ocean
-
North Atlantic
-
Labrador Sea (1)
-
-
-
biogeography (5)
-
biography (1)
-
Canada
-
Arctic Archipelago (1)
-
Western Canada
-
Alberta
-
Calgary Alberta (1)
-
Drumheller Alberta (1)
-
Red Deer River valley (6)
-
-
Manitoba (2)
-
Northwest Territories (3)
-
Red Deer River (1)
-
Saskatchewan (5)
-
Yukon Territory (1)
-
-
-
carbon
-
C-13/C-12 (1)
-
organic carbon (1)
-
-
Cenozoic
-
Quaternary
-
Pleistocene (1)
-
-
Tertiary
-
Neogene
-
Pliocene (1)
-
-
Paleogene
-
Eocene
-
lower Eocene (1)
-
-
Paleocene
-
lower Paleocene
-
Danian (1)
-
K-T boundary (10)
-
Puercan (1)
-
Torrejonian (1)
-
-
middle Paleocene (1)
-
Ravenscrag Formation (1)
-
upper Paleocene
-
Tiffanian (1)
-
-
-
-
-
-
Chordata
-
Vertebrata
-
Tetrapoda
-
Mammalia (4)
-
Reptilia
-
Diapsida
-
Archosauria
-
dinosaurs
-
Ornithischia
-
Ceratopsia
-
Ceratopsidae
-
Triceratops (1)
-
-
-
Ornithopoda
-
Hadrosauridae (4)
-
-
-
Saurischia
-
Theropoda
-
Carnosauria (1)
-
Coelurosauria
-
Tyrannosauridae (1)
-
-
-
-
-
-
-
-
-
-
-
crust (1)
-
deformation (1)
-
diagenesis (1)
-
electron microscopy (1)
-
faults (1)
-
ground water (2)
-
hydrology (1)
-
ichnofossils
-
Ophiomorpha (1)
-
-
igneous rocks
-
volcanic rocks
-
pyroclastics
-
tuff (1)
-
-
-
-
Invertebrata
-
Arthropoda
-
Mandibulata
-
Crustacea
-
Malacostraca (1)
-
-
-
Trilobitomorpha
-
Trilobita (1)
-
-
-
Mollusca
-
Bivalvia (3)
-
Cephalopoda
-
Ammonoidea
-
Ammonites (3)
-
Baculites (1)
-
Scaphites (1)
-
-
-
-
Protista
-
Foraminifera (2)
-
-
-
isotopes
-
stable isotopes
-
C-13/C-12 (1)
-
O-18/O-16 (1)
-
-
-
mantle (1)
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous
-
Albian (1)
-
Christopher Formation (1)
-
Isachsen Formation (1)
-
-
Upper Cretaceous
-
Campanian
-
upper Campanian (2)
-
-
Cenomanian (1)
-
Edmonton Group (1)
-
Fox Hills Formation (3)
-
Hell Creek Formation (5)
-
Horseshoe Canyon Formation (5)
-
Kanguk Formation (1)
-
K-T boundary (10)
-
Laramie Formation (1)
-
Maestrichtian
-
upper Maestrichtian (3)
-
-
Pierre Shale (1)
-
Prince Creek Formation (1)
-
Santonian (1)
-
Senonian (13)
-
-
Whitemud Formation (3)
-
-
-
North America
-
Great Plains
-
Northern Great Plains (1)
-
-
Western Canada Sedimentary Basin (1)
-
Western Interior
-
Western Interior Seaway (1)
-
-
-
orogeny (1)
-
oxygen
-
O-18/O-16 (1)
-
-
paleoclimatology (2)
-
paleoecology (4)
-
paleogeography (9)
-
paleomagnetism (8)
-
palynomorphs
-
Dinoflagellata (4)
-
miospores
-
pollen (9)
-
-
-
petroleum (2)
-
Plantae
-
Pteridophyta (2)
-
Spermatophyta
-
Angiospermae (5)
-
Gymnospermae
-
Coniferales
-
Taxodium (1)
-
-
-
-
-
plate tectonics (1)
-
sea-floor spreading (1)
-
sea-level changes (1)
-
sedimentary rocks
-
bone beds (3)
-
clastic rocks
-
bentonite (1)
-
conglomerate (1)
-
sandstone (2)
-
siltstone (1)
-
-
coal (2)
-
-
sedimentary structures
-
soft sediment deformation
-
clastic dikes (1)
-
flame structures (1)
-
slump structures (1)
-
-
-
sedimentation (2)
-
sediments
-
clastic sediments
-
gravel (1)
-
-
-
stratigraphy (5)
-
tectonics (2)
-
United States
-
Alaska
-
Seldovia Quadrangle (1)
-
-
Colorado
-
Adams County Colorado (1)
-
Arapahoe County Colorado (4)
-
Denver County Colorado
-
Denver Colorado (1)
-
-
Douglas County Colorado (4)
-
El Paso County Colorado (3)
-
Elbert County Colorado (5)
-
Jefferson County Colorado (2)
-
-
Denver Basin (8)
-
Montana
-
Garfield County Montana (1)
-
-
North Dakota
-
Slope County North Dakota (2)
-
-
South Dakota
-
Badlands National Park (2)
-
Corson County South Dakota (2)
-
Pennington County South Dakota (1)
-
-
Western U.S. (1)
-
Wyoming
-
Johnson County Wyoming (1)
-
-
-
weathering (1)
-
-
rock formations
-
Beaufort Formation (1)
-
Denver Formation (1)
-
Fort Union Formation (2)
-
Paskapoo Formation (3)
-
Raton Formation (1)
-
-
sedimentary rocks
-
sedimentary rocks
-
bone beds (3)
-
clastic rocks
-
bentonite (1)
-
conglomerate (1)
-
sandstone (2)
-
siltstone (1)
-
-
coal (2)
-
-
siliciclastics (1)
-
-
sedimentary structures
-
burrows (1)
-
sedimentary structures
-
soft sediment deformation
-
clastic dikes (1)
-
flame structures (1)
-
slump structures (1)
-
-
-
-
sediments
-
sediments
-
clastic sediments
-
gravel (1)
-
-
-
siliciclastics (1)
-
-
soils
-
paleosols (1)
-
Wodehouseia spinata
A STUDY OF THE FOSSIL POLLEN WODEHOUSEIA SPINATA . I. ULTRASTRUCTURE AND COMPARISONS TO SELECTED MODERN TAXA. II. OPTICAL MICROSCOPIC RECOGNITION OF FOOT LAYERS IN DIFFERENTIALLY STAINED FOSSIL POLLEN AND THEIR SIGNIFICANCE
Terrestrial palynomorph biostratigraphy of the Cypress Hills, Wood Mountain, and Turtle Mountain areas (Upper Cretaceous - Paleocene) of western Canada
Magnetobiostratigraphy of the continental Paleocene upper Coalspur and Paskapoo formations near Hinton, Alberta
Abstract The Cretaceous-Tertiary (K-T) boundary section at the West Bijou Site is remarkable because many of the methods used to constrain the position of a terrestrial K-T boundary have been successfully applied to a local section. These include palynology, magnetostratigraphy, shocked quartz and iridium analysis, vertebrate paleontology, geochronology, and paleobotany. The West Bijou Site K-T boundary records the extinction of the Wodehouseia spinata Assemblage Zone palynoflora (21%), followed immediately by the presence of a fern-spore abundance anomaly (74%) and the subsequent appearance of the P1 palynoflora. This palynological extinction is coincident with the presence of shock-metamorphosed quartz grains (5+ planes of parallel lamellae) and an iridium spike of 619 ± 32 parts per trillion within the 3-cm-thick boundary claystone. The boundary lies within a reversely magnetized interval, recognized as subchron C29r, substantiated by a radiometrically dated tuff 4.5 m below the boundary with an age of 65.73 ± 0.13 Ma. Dinosaur remains attributable to the late Maastrichtian Triceratops Zone were discovered 4 m below the boundary clay, and a partial jaw of a diagnostic Pu1 mammal was discovered 12 m above. Fossil plants are most abundant in the Paleocene and document a low diversity ecosystem recognizable as the southernmost extension of the FUI disaster recovery flora that radiated in North America following the K-T boundary cataclysm.