Canto del Agua Formation
Canto del Agua Formation Stratigraphic range: Triassic | |
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Type | Geological formation |
Overlies | Llano de Chocolate Beds |
Thickness | c. 2,100 m (6,900 ft) |
Lithology | |
Primary | Muddy sandstone, mudstone, conglomeradic sandstone, lapilli tuff, conglomerate, limestone |
Other | Grainstone |
Location | |
Coordinates | 28°12′18″S 70°56′31″W / 28.205043°S 70.941828°WCoordinates: 28°12′18″S 70°56′31″W / 28.205043°S 70.941828°W |
Region | Atacama Region |
Country | Chile |
Canto del Agua Formation (Chile) |
Canto del Agua Formation (Spanish: Formación Canto del Agua) is a geological formation in the Atacama Region of northern Chile. Its stratigraphy from top to bottom is as follows: mudstone, limestone, sandstone, mudstone, conglomerate, lapilli tuff, conglomeradic sandstone, muddy sandstone.[1] The environment where the sediments of the formation deposited is thought to have been the "submarine section of a coarse-grained fan delta" with other authors adding that the sedimentary basin where the sediments deposited was "bounded by two normal faults of WNW strike, active during deposition".[1] The exact relationship with the underlying Llano de Chocolate Beds is not clear.[1] In some locations the formation overlaps directly on the Punta de Choros Metamorphic Complex.[1]
The type locality of the formation lies next to the .[1]
References[]
- ^ a b c d e Salazar, Esteban; Vásquez, Paulina; Vallejos, Daniela; Creixell, Christian; Oliveros, Verónica; Ducea, Mihai M. (2020). "Stratigraphic and provenance analysis of Triassic rock units between 28-29° S, northern Chile: implications on the tectonic and paleogeographic evolution of the southwestern margin of Gondwana". Andean Geology. National Geology and Mining Service. 47 (2). doi:10.5027/andgeoV47n2-3131.
- Geologic formations of Chile
- Triassic System of South America
- Triassic Chile
- Sandstone formations
- Mudstone formations
- Conglomerate formations
- Limestone formations
- Tuff formations
- Paleontology in Chile
- Geology of Atacama Region
- Geology of the Chilean Coast Range