Exhumation history of the Altun Shan with evidence for the timing of the subduction of the Tarim block beneath the Altyn Tagh system, North Tibet

Authors
Jolivet, M Roger, F Arnaud, N Brunel, M Tapponnier, P Seward, D
Citation
M. Jolivet et al., Exhumation history of the Altun Shan with evidence for the timing of the subduction of the Tarim block beneath the Altyn Tagh system, North Tibet, CR AC S IIA, 329(10), 1999, pp. 749-755
Citations number
16
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
329
Issue
10
Year of publication
1999
Pages
749 - 755
Database
ISI
SICI code
1251-8050(19991130)329:10<749:EHOTAS>2.0.ZU;2-6
Abstract
The Altun Shan is a tectonic block to the south of the Tarim basin, North T ibet, bounded to the south by the Altyn Tagh fault. U/Pb crystallisation ag es on zircons are 441 +/- 9 Ma. Ar-40/Ar-39 analysis on muscovite yields an age of 383 +/- 7 Ma. Both indicate a cooling rate of 7.3 +/- 0.6 degrees C .Ma(-1) from 441 to 383 Ma. Further cooling, probably due to exhumation, be gan at this time and continued at a rate of 0.8 +/- 0.3 degrees C.Ma(-1). F rom three apatite fission-track analyses, cooling rate increased to 8 +/- 2 degrees C.Ma(-1) at 10 Ma. ((C) 1999 Academie des sciences/Editions scient ifiques et medicales Elsevier SAS.).