Madre de Dios Basin The Madre de Dios Basin is situated in south-eastern Peru and extends into northern Bolivia and southwestern Brazil. The basin area in Peru is about 77,500 sq. km (Perupetro, 2003). As defined it includes two distinct tectonic regions, the fold-thrust belt in the south and the wide, asymmetric foreland basin to the north. Structurally, the basin is bounded by the Azulmayo Thrust to the southwest, the Madidi Arch to the south and east, the Brazilian shield to the north and northeast, and the Manu Arch to the north and northwest. The Manu Arch separates the Madre de Dios Basin from the Ucayali Basin to the northwest and from the Beni Basin of Bolivia to the east. Morphologically, the Madre de Dios basin extends from the Fitzcarrald Isthmus and the foothills of the eastern Andean Cordillera (Paurcatambo Range) towards the Amazon plain. The basin contains Paleozoic, Mesozoic, and Cenozoic sediments. A depth to top of Precambrian basement map for the foreland area shows sediment thickness increases from about 1000 m in the north to more than 6000 m in the south. There is no charge for this report. |
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