Adamantina Formation
Geologic formation in Brazil / From Wikipedia, the free encyclopedia
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The Adamantina Formation is a geological formation in the Bauru Basin of western São Paulo state, in southeastern Brazil.
Quick Facts Type, Unit of ...
Adamantina Formation | |
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Stratigraphic range: Late Coniacian-Early Maastrichtian 87.8–68 Ma | |
Type | Geological formation |
Unit of | Bauru Group |
Underlies | Uberaba Formation |
Overlies | Santo Anastacio, Caiuá & Araçatuba Formations |
Lithology | |
Primary | Sandstone, calcrete |
Other | Mudstone, siltstone, conglomerate, coal |
Location | |
Coordinates | 21.6°S 50.1°W / -21.6; -50.1 |
Approximate paleocoordinates | 25.8°S 33.1°W / -25.8; -33.1 |
Region | São Paulo |
Country | Brazil |
Extent | Bauru Basin, Paraná Basin |
Type section | |
Named for | Adamantina |
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Its strata date back to the Late Cretaceous epoch of the Cretaceous Period, during the Mesozoic Era. The formation is part of the Bauru Group in the northeastern Paraná Basin.