The Pangong granulites of the Karakoram Fault (Western Tibet): vertical extrusion within a lithosphere-scale fault?

Authors
Rolland, Y Pecher, A
Citation
Y. Rolland et A. Pecher, The Pangong granulites of the Karakoram Fault (Western Tibet): vertical extrusion within a lithosphere-scale fault?, CR AC S IIA, 332(6), 2001, pp. 363-370
Citations number
37
Categorie Soggetti
Earth Sciences
Journal title
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE A-SCIENCES DELA TERRE ET DES PLANETES
ISSN journal
12518050 → ACNP
Volume
332
Issue
6
Year of publication
2001
Pages
363 - 370
Database
ISI
SICI code
1251-8050(20010330)332:6<363:TPGOTK>2.0.ZU;2-M
Abstract
The metamorphic rocks preserved in the Pangong Range, within the Karakoram Fault zone (Western Tibet) yield granulitic and amphibolitic assemblages. T he petrography and thermobarometry of the granulites show that they were eq uilibrated at high temperature (T > 800 degreesC, P similar to 5.5 kbar), a nd were subsequently retromorphosed in the amphibolite facies (T similar to 700-750 degreesC, P similar to 4-5 kbar), and in the greenschist facies. T hese very high temperature conditions suggest that the Karakoram Fault is a lithosphere-scale shear zone. (C) 2001 Academie des sciences / Editions sc ientifiques et medicales Elsevier SAS.