Austin Chalk
The Austin Chalk is an upper Cretaceous geologic formation in the Gulf Coast region of the United States. It is named after type section outcrops near Austin, Texas. The formation is made up of chalk and marl.
| Austin Chalk | |
|---|---|
| Stratigraphic range: Upper Cretaceous | |
Contact Austin Chalk - Eagle Ford Shale in Texas | |
| Type | Geological formation |
| Sub-units | Atco Formation, McKown Formation, Pflugerville Member |
| Lithology | |
| Primary | Chalk |
| Location | |
| Region | Gulf Coast |
| Country | United States |
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