The North-Chilean Coast Range — an example for the development of an active continental margin

Springer Science and Business Media LLC - Tập 72 - Trang 715-731 - 1983
Karsten Berg1, Christoph Breitkreuz1, Klaus -Werner Damm2, Siegfried Pichowiak1, Werner Zeil1
1Institut für Geologie und Paläontologie, Technische Universität Berlin, Berlin 12
2Institut für Geologie, Freie Universität Berlin, Berlin 33

Tóm tắt

Analysis of extended plutons in the Coast Range of North Chile between 25°30′ and 26°35′ led to the recognition of a complex magmatic and structural evolution from the Upper Paleozoic to the Tertiary. The ascension of the intrusive bodies is dictated by deep-seated block tectonics. Generally the chemistry changes from S-type magmas in the Paleozoic to I-type magmas in the Mesozoic and Cainozoic. This is accompanied by a change in the structural geology of the continental margin which we present in six hypothetic phases (Devonian-Tertiary). We are only at the beginning of an encompassing synthesis of the genesis of the Andean orogen.

Tài liệu tham khảo

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