Dorotea Formation | |
---|---|
Stratigraphic range: Late Campanian-Maastrichtian ~ | |
Type | Geological formation |
Underlies | Man Aike Formation |
Overlies | Tres Pasos Formation |
Thickness | 100–350 m (330–1,150 ft) |
Lithology | |
Primary | Sandstone, claystone |
Other | Conglomerate |
Location | |
Coordinates | 50°42′S 72°30′W / 50.7°S 72.5°W |
Approximate paleocoordinates | 52°54′S 60°30′W / 52.9°S 60.5°W |
Region | Magallanes Region |
Country | Chile |
Extent | Río de Las Chinas Valley, Magallanes Basin |
Type section | |
Named for | Sierra Dorotea |
Named by | Katz |
Year defined | 1963 |
The Dorotea Formation is a geological formation in the Río de Las Chinas Valley of the Magallanes Basin in Patagonian Chile whose strata date back to the Campanian to Maastrichtian of the Late Cretaceous.[1]