Hatchetigbee Bluff Formation
Geologic formation in the southern United States
From Wikipedia, the free encyclopedia
The Hatchetigbee Bluff Formation is a geologic formation in Alabama, Georgia, Louisiana and Mississippi. The youngest unit of the Wilcox Group preserves fossils dating back to the Ypresian stage of the Eocene period, or Wasatchian in the NALMA classification.[1] The formation is named for Hatchetigbee Bluff on the Tombigbee River, Washington County, Alabama.[2]
| Hatchetigbee Bluff Formation | |
|---|---|
| Stratigraphic range: Ypresian (Wasatchian) ~ | |
| Type | Formation |
| Unit of | Wilcox Group |
| Sub-units | Bashi Member |
| Lithology | |
| Primary | Marl, sandstone |
| Other | Shale, siltstone |
| Location | |
| Coordinates | 31.3°N 86.1°W |
| Approximate paleocoordinates | 33.1°N 71.7°W |
| Region | Alabama, Georgia, Louisiana, Mississippi |
| Country | United States |
| Extent | Gulf of Mexico Basin |
| Type section | |
| Named for | Hatchetigbee Bluff, Tombigbee River, Washington County, Alabama |
| Named by | Smith & Johnson |
| Year defined | 1887 |
  Hatchetigbee Bluff Formation (the United States)  Hatchetigbee Bluff Formation (Alabama) | |
Wasatchian correlations
See also
- List of fossiliferous stratigraphic units in Alabama
- List of fossiliferous stratigraphic units in Georgia (U.S. state)
- List of fossiliferous stratigraphic units in Louisiana
- List of fossiliferous stratigraphic units in Mississippi
- Paleontology in Alabama
- Paleontology in Georgia (U.S. state)
- Paleontology in Louisiana
- Paleontology in Mississippi