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Devonian magmatism in the accretionary complex of southern Chile

Hervé, F.; Calderon, M.; Fanning, C. M.; Pankhurst, R. J.; Fuentes, F.; Rapela, C. W.; Correa, J.; Quezada, P.; Marambio, C.


Supposed or potential Devonian igneous rocks in the accretionary complex of southern Chile were investigated using sensitive high-resolution ion microprobe U–Pb dating of zircon, with Hf- and O-isotope analyses of selected grains. Ages of 384 ± 3 and 382 ± 2 Ma are confirmed for two igneous bodies (another having been previously dated at 397 ± 1 Ma). Detrital zircon ages in the host rocks, some associated with Devonian marine fossils, indicate maximum possible sedimentation ages of c. 330 –...[Show more]

CollectionsANU Research Publications
Date published: 2016-07
Type: Journal article
Source: Journal of the Geological Society
DOI: 10.1144/jgs2015-163
Access Rights: Open Access


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