Halgaito Formation
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| Halgaito Formation | |
|---|---|
| Stratigraphic range: Permian | |
| Type | Formation |
| Unit of | Cutler Group[1] |
| Underlies | Elephant Canyon Formation |
| Overlies | Honaker Trail Formation of the Hermosa Formation[2] |
| Thickness | 350 to 800 feet (110 to 240 m)[1] |
| Lithology | |
| Primary | Shale |
| Location | |
| Country | File:Flag of the United States.svg United States |
| Type section | |
| Named for | Halgaito Spring, southwest of Medicine Hat, Navajo Co., AZ (Baker and Reeside, 1929)[3] |
| Named by | Baker and Reeside, 1929[3] |
The Halgaito Formation is the basal Permian geologic member of the Cutler Group in southern Utah.[3] The member consists of silty sandstone, siltstone and limestone.[1] The Elephant Canyon may grade into the Halgaito and grades northward into the Cedar Mesa Formation.[4]
Extent
[edit | edit source]There is no designated type locality for the Halgaito.[5] The shale can be seen at the confluence of the Green River and Colorado Rivers and in Cataract Canyon.[6]
References
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