Usme Formation
Geological formation in the Colombian Andes / From Wikipedia, the free encyclopedia
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For other uses, see Usme (disambiguation).
The Usme Formation (Spanish: Formación Usme, Tsu, Teu) is a geological formation of the Bogotá savanna, Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The formation consists of a lower part with predominantly shales with intercalated sandstone beds and an upper sequence with sandstones and conglomerates. The Usme Formation dates to the Neogene and Paleogene periods; Late Eocene to Early Oligocene epochs, and has a maximum thickness of 300 metres (980 ft).
Quick Facts Type, Underlies ...
Usme Formation | |
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Stratigraphic range: Late Eocene-Early Oligocene ~40–30 Ma | |
Type | Geological formation |
Underlies | Tilatá Formation |
Overlies | Regadera Formation |
Thickness | up to 300 m (980 ft) |
Lithology | |
Primary | Shale, sandstone, conglomerate |
Location | |
Coordinates | 4°21′40.3″N 74°07′50″W |
Region | Bogotá savanna, Altiplano Cundiboyacense Eastern Ranges, Andes |
Country | Colombia |
Type section | |
Named for | Usme |
Named by | Hubach |
Location | Usme, Bogotá |
Year defined | 1957 |
Coordinates | 4°21′40.3″N 74°07′50″W |
Region | Cundinamarca |
Country | Colombia |
Paleogeography of Northern South America 35 Ma, by Ron Blakey |
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