Sm-Nd dating of garnet granulites from the Kohistan complex, northern Pakistan

Hiroshi Yamamoto, Eizou Nakamura

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Sm-Nd mineral-isochron ages of garnet granulites in the southern part of the Kohistan complex are determined. The 91.0±6.3 Ma age is obtained from a granulite body of the Jijal complex at Pattan and the 69.5±9.3 Ma age is obtained from a granulite body of the Chilas complex at Zambil. These ages indicate that the granulite bodies at Pattan and at Zambil had cooled to below upper amphibolite facies by about 90 Ma and about 70 Ma respectively. The time of cooling of the granulite of the Jijal complex is comparable to the time-lapse of the Asia-Kohistan collision (102-75 Ma), although that of the Chilas complex is probably younger than the Asia-Kohistan collision and certainly older than the Asia-India collision (c. 50 Ma).

Original languageEnglish
Pages (from-to)965-969
Number of pages5
JournalJournal of the Geological Society
Volume153
Issue number6
DOIs
Publication statusPublished - Nov 1996

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granulite
garnet
collision
amphibolite facies
cooling
dating
mineral
Asia

Keywords

  • Granulites
  • Himalayas
  • Kohistan
  • Sm/Nd

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Geology
  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Sm-Nd dating of garnet granulites from the Kohistan complex, northern Pakistan. / Yamamoto, Hiroshi; Nakamura, Eizou.

In: Journal of the Geological Society, Vol. 153, No. 6, 11.1996, p. 965-969.

Research output: Contribution to journalArticle

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