Benton Group
E934194
The Benton Group is a sequence of Cretaceous-age sedimentary rock formations in the Western Interior of North America, notable for its marine shales and chalks that record the history of the Western Interior Seaway.
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
geologic group
ⓘ
stratigraphic unit ⓘ |
| associatedWith | Cenomanian–Turonian transgression NERFINISHED ⓘ |
| chronostratigraphicPosition |
Cretaceous System
NERFINISHED
ⓘ
Mesozoic NERFINISHED ⓘ |
| contains |
bentonite beds
ⓘ
fossil ammonites ⓘ fossil bivalves ⓘ fossil foraminifera ⓘ fossil marine invertebrates ⓘ organic-rich shale ⓘ |
| country |
Canada
ⓘ
United States of America ⓘ
surface form:
United States
|
| depositionalSetting | epicontinental seaway ⓘ |
| environmentOfDeposition | marine ⓘ |
| geologicAge | Cretaceous NERFINISHED ⓘ |
| geologicProvince | Western Interior Basin NERFINISHED ⓘ |
| hasColor |
black
ⓘ
dark gray ⓘ |
| hasStratigraphicImportance | regional correlation marker in Western Interior ⓘ |
| lithology |
chalk
ⓘ
marine shale ⓘ mudstone ⓘ sandstone ⓘ siltstone ⓘ |
| locatedIn | Western Interior of North America NERFINISHED ⓘ |
| namedFor | Benton Shale NERFINISHED ⓘ |
| overlies | Dakota Sandstone NERFINISHED ⓘ |
| partOf | Western Interior Seaway stratigraphic record ⓘ |
| potentialResource | hydrocarbon source rock ⓘ |
| records |
history of the Western Interior Seaway
ⓘ
sea-level fluctuations of the Western Interior Seaway ⓘ |
| researchField |
paleontology
ⓘ
sedimentology ⓘ stratigraphy ⓘ |
| stratigraphicRank | group ⓘ |
| subunit |
Belle Fourche Shale
NERFINISHED
ⓘ
Carlile Shale NERFINISHED ⓘ Graneros Shale NERFINISHED ⓘ Greenhorn Formation NERFINISHED ⓘ |
| underlies |
Niobrara Chalk
NERFINISHED
ⓘ
Niobrara Formation NERFINISHED ⓘ |
| usedFor |
biostratigraphy
ⓘ
chemostratigraphy ⓘ sequence stratigraphy ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.