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New constraints on the age and conditions of LPHT metamorphism in the southwestern Central Zone of the Damara Belt, Namibia and implications for tectonic setting

Longridge, L; Gibson, R. L; Kinnaird, J. A; Armstrong, Richard

Description

Orthopyroxene-bearing pelitic migmatites and associated anatectic leucogranites from the southwestern Central Zone of the Damara Belt provide revised constraints on the age and grade of LPHT metamorphism and its timing relative to deformation. Pseudosection modelling using THERMOCALC 3.33 indicates a single metamorphic event with peak temperatures of ca. 835 °C and pressures of 4.9 kbar for a garnet–cordierite–biotite–orthopyroxene schist. These temperatures confirm the attainment of true...[Show more]

CollectionsANU Research Publications
Date published: 2017-05
Type: Journal article
URI: http://hdl.handle.net/1885/113415
Source: Lithos
DOI: 10.1016/j.lithos.2017.02.006

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