The Bahía Mansa Metamorphic Complex or BMMC (Spanish: Complejo metamórfico Bahía Mansa, CMBM),[2] also known as the Western Series,[3] is a group of metamorphic geologic formations of the Chilean Coast Range in southern Chile.
It consists mainly of pelitic schists, metagreywackes and oceanic type mafic metavolcanics.
[4] The complex owes its name to Bahía Mansa.
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