Golden Valley Formation
Geologic formation in North Dakota / From Wikipedia, the free encyclopedia
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The Golden Valley Formation is a stratigraphic unit of Late Paleocene to Early Eocene age in the Williston Basin of North Dakota.[3] It is present in western North Dakota and was named for the city of Golden Valley by W.E. Benson and W.M. Laird in 1947.[2] It preserves significant assemblages of fossil plants[3] and vertebrates,[4] as well as mollusk and insect fossils.[3][4]
Quick Facts Type, Sub-units ...
Golden Valley Formation | |
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Stratigraphic range: Late Paleocene-Early Eocene (Clarkforkian-Wasatchian) ~57–52 Ma | |
Type | Geological formation |
Sub-units | Bear Den & Camels Butte Members |
Underlies | White River Group |
Overlies | Sentinel Butte Formation |
Thickness | up to 122 metres (400 ft)[1] |
Lithology | |
Primary | Claystone, mudstone, siltstone, sandstone |
Other | Lignite, conglomerate |
Location | |
Coordinates | 48.5°N 102.7°W / 48.5; -102.7 |
Approximate paleocoordinates | 52.9°N 82.2°W / 52.9; -82.2 |
Region | North Dakota |
Country | United States |
Extent | Williston Basin |
Type section | |
Named for | Golden Valley, North Dakota |
Named by | Benson & Laird[2] |
Year defined | 1947 |
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