U–Pb SHRIMP detrital zircon dating of metamorphic rocks in north–central Chile (28°–33°S): Evidence for Carboniferous and Triassic metamorphism in a subduction setting
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Herve, Francisco; Calderon, Mauricio; Fanning, Christopher Mark; Pankhurst, Robert J.; Navarro, J.
Description
U–Pb SHRIMP detrital zircon dating of ten samples of metamorphic “basement” rocks in north-central Chile and one granitic rock, improve knowledge of sedimentary, metamorphic and plutonic events in this segment of the Andean margin. The oldest possible sedimentation ages (Ordovician) come from a micaschist at Huentelauquén (477 Ma) and a granofels from a migmatite at Las Cruces (470 Ma) whose garnet-bearing granitic neosome (ca. 320 Ma) is essentially coetaneous with the extensive Coast Range...[Show more]
Collections | ANU Research Publications |
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Date published: | 2020 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/218801 |
Source: | Journal of South American Earth Sciences |
DOI: | 10.1016/j.jsames.2020.102767 |
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TMP7219189632022101211455.pdf | 10.71 MB | Adobe PDF | Request a copy |
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