Gracias Formation
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The Gracias Formation is a geologic formation in Honduras. The mainly sandstones, siltstones and claystones preserve vertebrate fossils dating back to the Neogene period.[1]
Quick Facts Type, Underlies ...
Gracias Formation | |
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Stratigraphic range: Miocene | |
Type | Formation |
Underlies | Pleistocene basalt |
Overlies | Padre Miguel Group |
Thickness | 200–300 m (660–980 ft) |
Lithology | |
Primary | Sandstone, siltstone, claystone |
Other | Conglomerate |
Location | |
Coordinates | 21.2°N 100.7°W / 21.2; -100.7 |
Approximate paleocoordinates | 21.7°N 98.0°W / 21.7; -98.0 |
Region | Lempira Department |
Country | ![]() |
Type section | |
Named for | Gracias |
Named by | Williams & McBirney |
Year defined | 1969 |
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