Gray Mesa Formation
From Wikipedia, the free encyclopedia
The Gray Mesa Formation is a geologic formation in New Mexico. Its fossil assemblage dates the formation to the Moscovian age of the Pennsylvanian.
Quick Facts Type, Unit of ...
Gray Mesa Formation | |
---|---|
Stratigraphic range: Moscovian | |
Type | Formation |
Unit of | Madera Group |
Sub-units | See text |
Underlies | Atrasado Formation |
Overlies | Sandia Formation |
Thickness | 192 m (630 ft) |
Lithology | |
Primary | Limestone |
Other | Shale, sandstone, conglomerate |
Location | |
Coordinates | 34.656°N 107.120°W / 34.656; -107.120 |
Region | New Mexico |
Country | United States |
Type section | |
Named for | Gray Mesa (Mesa Aparejo) |
Named by | Kelley and Wood |
Year defined | 1946 |
Close
The formation as presently defined includes outcrops previously assigned to many local units, including the Los Moyos Formation, the Armendaris Group, and the Nakaye Formation.