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ContrastingP-Tpaths within the Barchi-Kol UHP terrain (Kokchetav Complex): Implications for subduction and exhumation of continental crust

Stepanov, Aleksandr S.; Rubatto, Daniela; Hermann, Joerg; Korsakov, Andrey V.

Description

The Barchi-Kol terrain is a classic locality of ultrahigh-pressure (UHP) metamorphism within the Kokchetav metamorphic belt. We provide a detailed and systematic characterization of four metasedimentary samples using dominant mineral assemblages, mineral inclusions in zircon and monazite, garnet zonation with respect to major and trace elements, and Zr-in-rutile and Ti-in-zircon temperatures. A typical diamond-bearing gneiss records peak conditions of 49 ± 4 kbar and 950-1000°C. Near isothermal...[Show more]

CollectionsANU Research Publications
Date published: 2016-10
Type: Journal article
URI: http://hdl.handle.net/1885/109786
Source: American Mineralogist
DOI: 10.2138/am-2016-5454

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