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Geologic formation in Antarctica From Wikipedia, the free encyclopedia
The Hidden Lake Formation is a Late Cretaceous geologic formation in Antarctica. The sandstones and siltstones of the formation were deposited in a deltaic environment.
Hidden Lake Formation | |
---|---|
Stratigraphic range: Coniacian[1] | |
Type | Geological formation |
Unit of | Gustav Group |
Underlies | Santa Marta Formation |
Overlies | Whisky Bay Formation |
Lithology | |
Primary | Sandstone |
Other | Siltstone |
Location | |
Coordinates | 63.0°S 57.0°W |
Approximate paleocoordinates | 63.1°S 63.9°W |
Region | James Ross Island, James Ross Island group |
Country | Antarctica |
Type section | |
Named for | Hidden Lake |
Map of James Ross Island group James Ross Island is number 2 |
Indeterminate megalosaur remains have been recovered from it.[2] Also many plant fossils and ichnofossils of Planolites sp. and Palaeophycus sp. have been found in the formation.[3]
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