Magallanes Basin

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The Magallanes Basin or Austral Basin is a major sedimentary basin in southern Patagonia. The basin covers a surface of about 170.000–200.000 km2 and has a NNW-SSE oriented shape.[1][2] The basin bounds to the west with the Andes mountains and is separated from the Malvinas Basin to the east by the Río Chico-Dungeness High.[1] The basin evolved from being an extensional back-arc basin in the Mesozoic to being a compressional foreland basin in the Cenozoic.[3] Rocks within it derive from the Jurassic Period and includes the Cerro Toro formation.[4]

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  1. ^ a b Gallardo, Rocío E. (2014). "Seismic sequence stratigraphy of a foreland unit inthe [sic] Magallanes-Austral Basin, Dorado Riquelme Block, Chile: Implications for deep-marine reservoirs". Latin American Journal of Sedimentology and Basin Analysis (in Spanish). Asociación Argentina de Sedimentología. 1221 (1). Retrieved 7 December 2015. 
  2. ^ "Cuenca Austral". Secretaría de Energía (in Spanish). Government of Argentina. Retrieved 30 November 2015. De una superficie total de 170.000 Km2, unos 23.000 Km2 pertenecen al área costa afuera. 
  3. ^ Wilson, T.J. (1991). "Transition from back-arc to foreland basin development in the southernmost Andes: Stratigraphic record from the Ultima Esperanza District, Chile". Geological Society of America Bulletin. 103 (1): 98–111. doi:10.1130/0016-7606(1991)103<0098:tfbatf>;2. 
  4. ^ Fosdick, Julie C. (2007). Late Miocene Exhumation of the Magallanes Basin and sub-Andean fold belt, southern Chile: New constrains from apatite U-Th/He thermochronology. Geological Society of America, Denver Annual Meeting (28–31 October 2007) Paper No. 123-15. Denver.