Cerro Negro Formation
| Cerro Negro Formation Stratigraphic range: Ediacaran | |
|---|---|
| Type | Formation |
| Underlies | Balcarce Formation |
| Overlies | Sierra Bayas Group |
| Lithology | |
| Primary | Shale, sandstone |
| Other | Marl |
| Location | |
| Region | Buenos Aires Province |
| Country | Argentina |
Cerro Negro Group is a sedimentary formation of Ediacaran age in Buenos Aires Province, Argentina. The formation crops out along the Tandilia System, a chain of hills made up by of ancient rocks. Together with the formations of the underlying Sierra Bayas Group it is contains the oldest sedimentary formations in Argentina that have not been subject to significant metamorphism or deformation. In 2015 a complete revision of the formation was proposed.[1]
See also
References
- ↑ Arrouy, M. Julia; Poiré, Daniel G.; Gómez Peral, Lucía E.; Canalicchio, José María (2015). "Sedimentología y estratigrafía del Grupo La Providencia (nom. nov.): cubierta superior neoproterozoica, Sistema de Tandilia, Argentina". Latin American Journal of Sedimentology and Basin Analysis (in Spanish). 22 (2).
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