Chañaral Epimetamorphic Complex

Chañaral Epimetamorphic Complex
Chañaral Epimetamorphic Complex
Type	Complex
Underlies	Cifuncho Formation; Pan de Azúcar Formation
Lithology
Primary	Metasediments including metaturbidite
Location
Region	Atacama Region
Country	Chile
Type section
Named for	Chañaral

The Chañaral Epimetamorphic Complex or Las Tórtolas Formation^[1] is an accretionary complex composed of metamorphic rocks located in western Atacama Region, Chile. The rocks of the complex are mainly mica-schist, greenschist and metasediment of low-grade. The deposition of the sedimentary protoliths occurred in the Carboniferous and Permian being later metamorphosed. Among the protoliths of the complex are turbidites and other sediments.^[2] Chañaral Epimetamorphic Complex is thought to represent the shallow and frontal part of an accretionary prism while the nearby Punta de Choros Metamorphic Complex represents the deeper basal part of the very same accretionary prism.^[2]

References

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v t e Geology of Chile
Sedimentary basins	Altiplano Arauco Aysén Caldera Neuquén Magallanes Osorno–Llanquihue Pucatrihue Salar de Atacama Salta Santiago Temuco Valdivia
Faults	Atacama Fault Biobío-Aluminé Fault Cachet Fault Domeyko Fault El Arrayán Fault Futrono Fault Gastre Fault Lanalhue Fault Liquiñe-Ofqui Fault Magallanes-Fagnano Fault Mocha-Villarrica Fault Pichilemu Fault Reigolil-Pirihueico Fault San Ramón Fault Valeriano Fault
Batholiths	Coastal central Chile Elqui-Limarí Futrono-Riñihue North Patagonian Panguipulli South Patagonian Vicuña Mackenna
Metamorphic complexes	Bahía Mansa Belén Chañaral Choapa Chonos Cordillera Darwin Eastern Andes Mejillones Puerto Edén Punta de Choros Quebrada del Carrizo Trafún Tierra del Fuego
Terranes	Arequipa-Antofalla Chaitenia Chilenia Chiloé Cuyania Fitz Roy Madre de Dios Mejillonia Patagonia
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