Csehbánya Formation
The Csehbánya Formation is a geological formation in the Transdanubian Mountains of Veszprém County, Hungary. The formation dates to the Late Santonian (around 85-84 million years ago) of the Late Cretaceous. It represents a floodplain environment as opposed to the swampy lacustrine environment of the simultaneous Ajka Coal Formation, though there is complete overlap in terms of fauna. It underlies the Jákó Marl Formation, and laterally transitions to the Ajka Coal Formation.
| Csehbánya Formation | |
|---|---|
| Stratigraphic range: Late Santonian, ~ | |
| Type | Geological formation |
| Underlies | Jákó Marl Formation, localized unconformity with Eocene Iharkút Conglomerate present in some areas |
| Overlies | Unconformity with Upper Triassic Main Dolomite Formation and Upper Cretaceous Nagytárkány Bauxite Formation |
| Area | Transdanubian Mountains |
| Thickness | Varies, but up to 100–150 m (330–490 ft) |
| Lithology | |
| Primary | Siltstone, sandstone conglomerate |
| Other | Claystone |
| Location | |
| Coordinates | 47.24°N 17.64°E |
| Approximate paleocoordinates | 31.0°N 18.6°E |
| Region | Europe |
| Country | Hungary |
| Type section | |
| Named for | Csehbánya, Hungary |
Csehbánya Formation (Hungary) | |
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