Great Valley Group
E440145
The Great Valley Group is a thick sequence of sedimentary rock formations in California’s Great Valley, notable for preserving extensive marine and terrestrial deposits from the Mesozoic era.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Great Valley Group canonical | 2 |
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
geologic group
ⓘ
sedimentary rock unit ⓘ stratigraphic unit ⓘ |
| associatedWith |
Franciscan subduction complex
NERFINISHED
ⓘ
Sierra Nevada magmatic arc NERFINISHED ⓘ |
| contains |
ammonite fossils
ⓘ
bivalve fossils ⓘ foraminifera fossils ⓘ marine fossils ⓘ plant fossils ⓘ terrestrial fossils ⓘ vertebrate fossils ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| environmentOfDeposition |
deep‑marine turbidite
ⓘ
deltaic ⓘ marine ⓘ nearshore marine ⓘ slope and basin ⓘ |
| geologicAge |
Cretaceous
NERFINISHED
ⓘ
Late Jurassic ⓘ Mesozoic ⓘ |
| hasSubunit | numerous named formations along the Great Valley ⓘ |
| lithology |
conglomerate
ⓘ
sandstone ⓘ shale ⓘ siltstone ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Great Valley NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| overlies | Franciscan Complex NERFINISHED ⓘ |
| partOf |
California Coast Ranges geologic province
NERFINISHED
ⓘ
Great Valley Sequence NERFINISHED ⓘ |
| region | Central Valley of California NERFINISHED ⓘ |
| researchField |
paleontology
ⓘ
sedimentology ⓘ stratigraphy ⓘ tectonics ⓘ |
| significance | records subduction‑related forearc basin sedimentation along the Mesozoic continental margin of western North America ⓘ |
| tectonicSetting | forearc basin ⓘ |
| thickness | several kilometers ⓘ |
| underlies | Cenozoic sedimentary deposits of the Great Valley ⓘ |
| usedFor |
reconstructing Mesozoic paleogeography of California
ⓘ
regional stratigraphic correlation in California ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.