Hammett Shale facts for kids
Quick facts for kids Hammett ShaleStratigraphic range: Aptian ~120–112Ma |
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|---|---|
| Type | Formation |
| Location | |
| Region | Texas |
| Country |  United States |
Trinity Group stratigraphic column in Texas
The Hammett Shale is a geologic formation in Texas. It preserves fossils dating back to the Cretaceous period.
A stratigraphic column at the Mount Bonnell Fault location starts with the Lower Cretaceous Trinity Group overlain by the Edwards Group. Upper Cretaceous formations follow, starting with the Del Rio Clay, Buda Limestone, and then the Eagle Ford Group. Formations within the Trinity Group include the Hammett Formation, Cow Creek Formation, Hensel Formation, and Lower and Upper Glen Rose Formation. The Hammett and the lower portion of the Upper Glen Rose act as confining units (or aquitard) for the Middle Trinity Aquifer.
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Hammett Shale Facts for Kids. Kiddle Encyclopedia.