Multi-phase Paleozoic magmatism in the North Qaidam ultrahigh-pressure metamorphic units, NW China: implications for transition from continental collision to extensional collapse

Wentao Ji, Shengyao Yu, Yue Yue, Yinbiao Peng, Xiangyu Gao, Pei Lv, Chuanzhi Li, Xingzhou Jiang, Lintao Wang & Yu Qi
The North Qaidam subduction-collision zone is a typical Alpine-type ultra-high pressure (UHP) metamorphic zone due to the Early Palaeozoic subduction of the Qaidam Block beneath the Oulongbuluke Block, with an integrated record of oceanic subduction, continental subduction, collision, and exhumation to post-collisional extensional collapse. In this study, systemic petrology, zircon U-Pb geochronology, Hf isotopic data and whole-rock geochemical analyses have been carried out for granitoids in the North Qaidam UHP metamorphic units to determine their...
1 citation reported since publication in 2022.
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