Iglesia Basin
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| Iglesia Basin | |
|---|---|
| Cuenca de Iglesia | |
  | |
| Coordinates | 30°20′00″S 69°20′00″W / 30.33333°S 69.33333°W |
| Etymology | Iglesia |
| Region | San Juan Province |
| Country |  Argentina |
| State(s) | Iglesia Department |
| Cities | Rodeo |
| Characteristics | |
| On/Offshore | Onshore |
| Boundaries | Frontal Cordillera, Precordillera |
| Hydrology | |
| River(s) | Jáchal |
| Geology | |
| Plate | South American |
| Orogeny | Andean |
| Age | Neogene-Pleistocene |
Iglesia Basin (Spanish: Cuenca de Iglesia) is a sedimentary basin located in northern San Juan Province, western Argentina. It is thought to be a piggyback basin.[1] Its sedimentary fill is of Neogene to Pleistocene age and has an estimated maximum thickness of 3.5 km.[1] There are hot springs in the eastern part of the basin.[1] The rock under the sedimentary fill is interpreted to be in part composed of plutonic intrusions belonging to the Tocota pluton, which in turn is a part of a larger group of plutonic intrusions known as the Colangüil Batholith.[2]
