An appraisal of peak temperatures and thermal histories in ultrahigh-temperature (UHT) crustal metamorphism: the significance of aluminous orthopyroxene

• Main Author: Simon L. Harley
• Format: Report
• Language: English
• Published: Department of Geology and Geophysics, University of Edinburgh 1998
• Subjects: metamorphism; granulite; ultrahigh temperature; geothermometry; orthopyroxene; mineral chemical zoning; Mather Peninsula; Napier; Rauer Islands; Memoirs of National Institute of Polar Research; Polar Research
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2338; http://id.nii.ac.jp/1291/00002338/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2338&item_no=1&attribute_id=18&file_no=1

Ultrahigh-temperature (UHT) crustal metamorphism occurs where peak metamorphic temperatures of 900-1100℃ have been attained at pressures in the range 7-13 kbar. Mineral assemblages in metapelites that are constrained by experimentally-derived and calculated FMAS and KFMASH petrogenetic grids provide...