Salin Formation
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| Salin Formation | |
|---|---|
| Stratigraphic range: Miocene-Pliocene | |
| Type | Geological formation |
| Unit of | Salar de Atacama basin |
| Thickness | c. 200 m |
| Lithology | |
| Primary | Volcaniclastic sand, silt and gravel |
| Other | Volcanic ash, evaporite |
| Location | |
| Coordinates | Lua error in Module:Coordinates at line 489: attempt to index field 'wikibase' (a nil value). |
| Region | Antofagasta Region |
| Country | Chile |
Salin Formation (Chile) | |
Salin Formation (Spanish: Formación Salin) is a geological formation composed of alternations of volcanic sand, silt and gravel in inland Antofagasta Region, northern Chile.[1][2] The formation is poorly consolidated and include layers of volcanic ash and evaporite as well as lacustrine sediments.[1][3] The formation is overlaid by a permeable ignimbrite.[2] Based on geochemical similarities Socompa volcano may be the source for the upper units of the formation.[4] The formation is the main water-bearing geological unit of the Monturaqui-Negrillar-Tilopozo Aquifer.[1][5] The formation has been estimated to have medium to high permeability.[3]
References
[edit | edit source]- ^ a b c Rissmann et al. 2015, p. 165.
- ^ a b Bravo Castro 2021, p. 57.
- ^ a b Lelli 2018, p. 23.
- ^ Rissmann et al. 2015, p. 166.
- ^ Anderson, Low & Foot 2002, p. 135.
- Bibliography
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