Discovery of two ophiolite complexes of different ages in the Khoy area (NW Iran)

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• 作者：Khalatbari-Jafari ; Morteza ; Juteau ; Thierry ; Bellon ; Hervé ; Emami ; Hashem
• 关键词：NW Iran (Khoy) ; ophiolites ; metamorphism ; ⁴⁰K&ndash ; ⁴⁰Ar ages ; Palaeozoic ; Mesozoic ; Cainozoic ; Nord-Ouest de l'Iran (Khoy) ; ophiolites ; mé ; tamorphisme ; â ; ges ⁴⁰K&ndash ; ⁴⁰Ar ; Palï ; que ; Mï ; que
• 刊名：Comptes Rendus Geoscience
• 出版年：2003
• 出版时间：October, 2003
• 年：2003
• 卷：335
• 期：12
• 页码：917-929
• 全文大小：659 K

文摘

New field and laboratory studies on the ophiolite of Khoy (northwestern corner of Iran) lead to the discovery that there are not one, but two ophiolitic complexes in the Khoy area: (1) an old, poly-metamorphic ophiolite, whose oldest metamorphic amphiboles yielded a Lower Jurassic apparent ⁴⁰K–⁴⁰Ar age, and whose primary magmatic age should logically be pre-Jurassic (Upper-Triassic?); (2) a younger non metamorphic ophiolite of well dated Upper Cretaceous age. To cite this article: M. Khalatbari-Jafari et al., C. R. Geoscience 335 (2003).