Dawson Arkose | |
---|---|
Stratigraphic range: Early Paleocene | |
Type | Formation |
Unit of | D1 Sequence[1] |
Lithology | |
Primary | Arkosic sandstone |
Other | Mudstone |
Location | |
Region | Colorado |
Country | United States |
Type section | |
Named for | Dawson Butte |
Named by | Richardson (1915)[2] |
The Dawson Arkose is a geologic formation in the Denver Basin that underlies the Denver area in Colorado. It is characterized by alternating beds of arkosic sandstone and mudstone.[1][3] The Dawson Arkose contains plant remains[4] and other nonmarine fossils, and hosts aquifers that are important sources of water for the area.[5]