Tectonic settings of porphyry Cu–Mo–Au deposits in the Himalayan–Tibetan orogen, East Tethys

Qin, Jianhua, Din , Jun, Zhang, Dexian, Rusk, Brian, Liu, Caize, and Zhang, Qiming (2012) Tectonic settings of porphyry Cu–Mo–Au deposits in the Himalayan–Tibetan orogen, East Tethys. International Geology Review, 54 (3). pp. 302-312.

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Abstract

Porphyry Cu (Mo–Au) deposits in the Himalayan–Tibetan orogen formed during the Late Triassic, Early Cretaceous, Eocene, Oligocene, and Miocene and can be classified into different metallogenic belts according to their petrologic features, mineralization ages, and tectonic settings. A close spatial relationship to regional strike–slip faults is evident in all five belts. Porphyry Cu (Mo–Au) deposits exist in a wide range of tectonic environments, including island arc, syn-collision, post-collisional convergence, and continental-transform plate boundaries.

Porphyry Cu deposits cluster in the southernmost part of the Yidun–Zhongdian Belt, along the N–S-trending Gaze River dextral strike–slip fault. Porphyry Cu deposits in the Lijiang–Jinping Belt lie along the Ailaoshan–Red River continental–transform shear zone and the associated strike–slip faults. The Yulong–Malasongduo porphyry belt is controlled by the Cesuo Fault, a NNW-trending regional dextral transcurrent fault that is associated with Palaeogene westward continental oblique subduction along the Jinsha suture. In the Gangdis Belt, Miocene porphyry Cu deposits are localized along N–S-trending normal faults, which were produced by transpression within the regional NW–SE-trending Karakoram–Jiali fault zone (KJFZ). A close spatial relationship between porphyry Cu deposits and strike–slip faults also exists for the Bangong–Nujiang Belt.

Item ID: 17427
Item Type: Article (Refereed Research - C1)
Keywords: tectonic setting of orebodies; porphyry Cu–Mo–Au deposits; strike–slip faults; Himalayan–Tibetan orogen; East Tethys
ISSN: 1938-2839
Date Deposited: 05 Jul 2011 02:31
FoR Codes: 04 EARTH SCIENCES > 0403 Geology > 040307 Ore Deposit Petrology @ 100%
SEO Codes: 84 MINERAL RESOURCES (excl. Energy Resources) > 8401 Mineral Exploration > 840101 Aluminium Ore Exploration @ 50%
84 MINERAL RESOURCES (excl. Energy Resources) > 8401 Mineral Exploration > 840102 Copper Ore Exploration @ 50%
Citation Count from Web of Science Web of Science 2
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