Dorotea Formation
Geological formation in the Río de Las Chinas Valley, Magallanes Basin, Chile / From Wikipedia, the free encyclopedia
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Not to be confused with Cerro Dorotea Formation.
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]
Quick Facts Type, Underlies ...
Dorotea Formation | |
---|---|
Stratigraphic range: Late Campanian-Maastrichtian ~72–66 Ma | |
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 | 50.7°S 72.5°W / -50.7; -72.5 |
Approximate paleocoordinates | 52.9°S 60.5°W / -52.9; -60.5 |
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 |
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