The Fox Hills Formation is a Cretaceous geologic formation in the northwestern Great Plains of North America. It is present from Alberta on the north to ... |
The formation dates to approximately 69 to 70 million years old. Fox Hills Formation exposures occur in south-central and southwestern North Dakota, and mostly ... |
The formation in the study area was previously defined as a 27-mthick sandstone unit, containing three members--ascending, Trail City, Timber Lake, and Colgate ... |
Exposures of the Fox Hills Formation in Dewey, Ziebach and Corson counties, northwest-central South Dakota, include its historical type locality and constitute ... |
In South Dakota west of the Missouri River Fox Hills strata form the east ends of the divides between three east-flowing Missouri tributaries, the Cheyenne, ... |
| Novbeti > |
| Axtarisha Qayit Anarim.Az Anarim.Az Sayt Rehberliyi ile Elaqe Saytdan Istifade Qaydalari Anarim.Az 2004-2023 |