Chaco Basin
The Chaco Basin (Spanish: Cuenca Chaco, Spanish: Cuenca Chaco Paranaense or Spanish: Cuenca Chaco-Paraná) is a major sedimentary basin in Central South America around the borders of Argentina, Bolivia and Paraguay. The basin forms part of the larger Paraná Basin. Superficially, the Chaco Basin is an alluvial basin composed of land-derived (in contrast to marine sediments) material, mostly fine sand and clays of Paleogene, Neogene and Quaternary age. On deeper levels the Paraguayan Chaco is made up by four sub-basins, the Pirizal, Pilar, Carandaity and Curupaity basins.
| Chaco Basin | |
|---|---|
| Cuenca Chaco, Cuenca Chaco Paranaense | |
Location of the basin in South America | |
| Coordinates | 25°S 60°W |
| Etymology | Chaco |
| Location | Central South America |
| Region | Gran Chaco Paraná Basin |
| Country | Argentina Bolivia Paraguay |
| State(s) | Chaco, Formosa Chuquisaca, Santa Cruz, Tarija Alto Paraguay, Boquerón |
| Cities | Filadelfia |
| Characteristics | |
| On/Offshore | Onshore |
| Boundaries | Andes |
| Part of | Andean foreland basins |
| Hydrology | |
| River(s) | Paraguay, Paraná |
| Geology | |
| Basin type | Foreland basin |
| Orogeny | Andean |
| Age | Paleozoic-Holocene |
| Stratigraphy | Stratigraphy |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.