Colorado Basin, Argentina
http://dbpedia.org/resource/Colorado_Basin,_Argentina an entity of type: SpatialThing
The Colorado Basin (Spanish: Cuenca del Colorado) is a sedimentary basin located in northeastern Patagonia. The basin stretches across an area of approximately 180,000 square kilometres (69,000 sq mi), of which 37,000 square kilometres (14,000 sq mi) onshore in the southern Buenos Aires Province and the easternmost Río Negro Province extending offshore in the South Atlantic Ocean.
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Colorado Basin, Argentina
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Colorado Basin
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Cuenca del Colorado
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South Atlantic rift basins
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Argentina
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Location of the basin in Argentina
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Buenos Aires & Río Negro Provinces
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The Colorado Basin (Spanish: Cuenca del Colorado) is a sedimentary basin located in northeastern Patagonia. The basin stretches across an area of approximately 180,000 square kilometres (69,000 sq mi), of which 37,000 square kilometres (14,000 sq mi) onshore in the southern Buenos Aires Province and the easternmost Río Negro Province extending offshore in the South Atlantic Ocean. The basin comprises a sedimentary succession dating from the Permian (pre-rift stage) and Early Cretaceous (rift stage) to the Quaternary, representing the passive margin tectonic phase of the basin history. The Mesozoic rifting in the basin resulted from the break-up of Pangea and the formation of the South Atlantic. Long hiatuses exist in the succession. The basin is of paleontological significance for hosting dating to the Late Miocene. The defines the Chasicoan South American land mammal age and contains a rich mammal and other vertebrate fauna. The contemporaneous Cerro Azul Formation has provided fossil rodents, armadillos and opossums. The Middle to Late Miocene contains vertebrate fossils of the cetacean . The has provided fossils of the glyptodont Plohophorus figuratus. The Permian succession in the basin has provided flora microfossils. Contrasting with the South Atlantic passive margin basins to the north (Santos Basin in southern Brazil) and south; Golfo San Jorge and Austral Basins, the Colorado Basin does not produce hydrocarbons. Exploration for petroleum started in the 1940 with the drilling of two onshore wells and several onshore and offshore wells have been drilled in the 1960s, 1970s and 1990s. The main source rocks are found in the Permian succession, with reservoir rocks the Colorado Formation. Seals are provided by the Early Paleocene .
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Passive margin on rift basin
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Both
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Río Negro & Colorado Rivers
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