Moquegua Basin
Cuenca Moquegua
Map showing the location of Moquegua Basin
Map showing the location of Moquegua Basin
Coordinates16°48′S 70°48′W / 16.800°S 70.800°W / -16.800; -70.800
EtymologyCity of Moquegua, Peru
LocationWestern South America
Country Peru
State(s)Department of Moquegua
CitiesMoquegua
Characteristics
On/OffshoreOnshore
Part ofCircum-Pacific forearc basins
Hydrology
Sea(s)Eastern Pacific Ocean
River(s)Osmore River
Geology
Basin typeForearc basin
OrogenyAndean
AgeCenozoic

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 sedimenty fill of the basin.[2] The basement of the basin is made of rocks older than the Cenozoic.[2]

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]

References

  1. 1 2 Alván, Aldo; Ramírez, Katerine; von Eynatten, Hilmar; Dunkl, István; Jacay, Javier; Bertone, Gabriela (2017). "Evolución Geológica de las Cuencas de Antearco del Sur de Perú (Moquegua y Camaná-Mollendo): Proveniencia Sedimentaria y Análisis de Facies en Rocas Cenozoicas". Boletín de la Sociedad Geológica del Perú (in Spanish). 112: 053–077.
  2. 1 2 Salazar, Esteban; Bustamante, Yacory F.; Sánchez, Elvis A.; Mamani, Mirian I. (2020). "Arquitectura estratigráfica, paleogeografía y proveniencia sedimentaria de las rocas cenozoicas del sur de Perú (Tacna, 18° S)". Andean Geology. National Geology and Mining Service. 47 (2): 351–383. doi:10.5027/andgeoV47n2-3131.
  3. ↑ Macharé, José; Devries, Thomas; Barron, John; Fourtanier, Élisabeth (1988). "Oligo-Miocene transgression along the Pacifie margin of South America: new paleontological and geological evidence from the Pisco basin (Peru)" (PDF). Geódynamique. 3 (1–2): 25–37. Retrieved 2020-03-09.


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