| 词条 | Choapa Metamorphic Complex |
| 释义 |
| name = Choapa Metamorphic Complex | image = | caption = | type = Complex | age = | prilithology = Quartz micaschist, phyllite, amphibolitic schist | otherlithology = | namedfor = Choapa River | namedby = | region = Coquimbo Region | country = Chile | coordinates = | unitof = | subunits = | underlies = | overlies = | thickness = | extent = | area = | map = | map_caption = }} The Choapa Metamorphic Complex or ChMC is a large coherent but varied group of metamorphic rocks –in other words a geologic complex– that crops out in the Chilean Coast Range in northern Chile. The rocks of the formation have been metamorphosed under greenschist facies metamorphism. After the main phase of metamorphism the rocks of the complex were heated by plutons in the Jurassic. It has been suggested that the protoliths of the formation were similar and equivalent to the Paleozoic-aged Puerto Manso Formation.[1] The complex is named after Choapa River. References1. ^{{cite book |last1=Hervé |first1=F.|last2=Faundez |first2=V. |last3=Calderón |first3=M. |last4=Massonne |first4=H.-J. |last5=Willner |first5=A.P. |author-link=Francisco Hervé |editor-last1=Moreno |editor-first1=Teresa|editor-last2=Gibbons |editor-first2=Wes |title=The Geology of Chile |publisher=Geological Society of London |date=2007 |pages=7–20 |chapter=Metamorphic and plutonic basement complexes |isbn=}} {{coord missing|Chile}}{{Coquimbo-geo-stub}}{{Geology of Chile}} 3 : Geology of Coquimbo Region|Metamorphic complexes|Lithodemic units of Chile |
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