Moquegua Basin
Peruvian sedimentary basin
From Wikipedia, the free encyclopedia
Moquegua Basin is a sedimentary basin in southernmost Peru. Sedimentary rocks of the basin, including those of Moquegua Group,[1] crop out in the Central Depression makes up part of the sedimentary fill of the basin.[2] The basement of the basin is made of rocks older than the Cenozoic.[2]
| Moquegua Basin | |
|---|---|
| Cuenca Moquegua | |
  Location within Peru | |
| Coordinates | 16°48′S 70°48′W |
| Etymology | City of Moquegua, Peru |
| Location | Western South America |
| Country |  Peru |
| State | Department of Moquegua |
| Cities | Moquegua |
| Characteristics | |
| On/Offshore | Onshore |
| Part of | Circum-Pacific forearc basins |
| Hydrology | |
| Sea | Eastern Pacific Ocean |
| River | Osmore River |
| Geology | |
| Basin type | Forearc basin |
| Orogeny | Andean |
| Age | Cenozoic |
Despite being close to the Pacific Ocean Moquegua Basin appear to have been unaffected by the Oligo-Miocene marine transgression that affected many other basins of western South America such as nearby Pisco Basin.[3] Concurrent with Andean uplift it is thought that the basin went from having a “balanced basin-fill” between Oligocene and Middle Miocene having a “overfilled basin-fill” from the Middle Miocene to the present.[1]
