Tralcán Formation
Tralcán Formation (Spanish: Formación Tralcán) is a sedimentary formation of Triassic age in Los Ríos Region in south–central Chile. It overlies unconformably the Trafún Metamorphic Complex. Tralcán Formation and nearby Panguipulli Formation form possibly the remnants of an ancient lake and river system. The formation is named after Mount Tralcán on the western edge of Riñihue Lake.
| Tralcán Formation | |
|---|---|
| Stratigraphic range: Rhaetian | |
| Type | Geological formation |
| Underlies | Quaternary glacial deposits |
| Overlies | Trafún Metamorphic Complex |
| Thickness | >800 m (2,600 ft) |
| Lithology | |
| Primary | Conglomerate, sandstone, mudstone |
| Other | Shale |
| Location | |
| Coordinates | 39.8°S 72.5°W |
| Region | Los Ríos Region |
| Country | Chile |
| Type section | |
| Named for | Tralcán |
| Named by | Aguirre & Levi |
| Year defined | 1964 |
Tralcán Formation (Chile) | |
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