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Kirtland Formation
Geological formation in New Mexico and Colorado, United States / From Wikipedia, the free encyclopedia
The Kirtland Formation (originally the Kirtland Shale) is a sedimentary geological formation.[1]
Quick Facts Type, Sub-units ...
Kirtland Formation | |
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Stratigraphic range: Campanian (typically Kirtlandian) 75–73.5 Ma | |
![]() Kirtland Formation at its type location south of Kirtland, New Mexico | |
Type | Geological formation |
Sub-units | Hunter Wash, Farmington and De-na-zin Members |
Underlies | Ojo Alamo Formation |
Overlies | Fruitland Formation |
Thickness | 594 m (1,949 ft) |
Lithology | |
Primary | Sandstone |
Other | Shale, mudstone, conglomerate |
Location | |
Coordinates | 36.708°N 108.350°W / 36.708; -108.350 |
Approximate paleocoordinates | 42.6°N 76.3°W / 42.6; -76.3 |
Region | ![]() |
Country | ![]() |
Extent | San Juan Basin |
Type section | |
Named for | Kirtland Post Office |
Named by | C.M. Bauer |
Year defined | 1916 |
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