Punta de Choros Metamorphic Complex

Punta de Choros Metamorphic Complex
Stratigraphic range: CarboniferousPermian
Type Complex
Lithology
Primary Micaschist
Other Greenschist
Location
Region Atacama Region
Country Chile
Type section
Named for Punta de Choros

The Punta de Choros Metamorphic Complex or PCMC is a large coherent group of metamorphic rocks –in other words a geologic complex– of the Chilean Coast Range in northern Chile. It consists mainly in micaschists, greenschists and other low-grade metasediment. The complex was formed by subduction metamorphism of sediments and mafic rocks at the interface between a subducting plate and the overriding plate.[1]

The complex owes its name to Punta de Choros.

References

  1. Creixell, C.; Oliveros, V.; Vásquez, P.; Navarro, J.; Vallejos, D.; Valin, X.; Godoy, E.; Ducea, M.N. (2016). "Geodynamics of Late Carboniferous–Early Permian forearc in north Chile (28°30′–29°30′S)". Journal of the Geological Society. doi:10.1144/jgs2016-010.

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