Petrogenetic and tectonic significance of Permian calc-alkaline lamprophyres, East Kunlun orogenic belt, Northern Qinghai-Tibet Plateau

Chemical compositions of garnet and clinopyroxene and their genetic significances in Yemaquan skarn iron–copper–zinc deposit, Qimantagh, eastern Kunlun

“…Accretion/ collision magmatism developed from the start of the Late Silurian (~406 Ma-~350 Ma) and indicated that this district formed part of the collisional orogeny stage (Chen et al, 2006;Li et al, 2013a;Liu et al, 2012). From the Permian to Middle Triassic, abundant granitoids (280 Ma-250 Ma) intruded during this period and were associated with the Paleo-Tethys oceanic basin subducting northward (Deng et al, 2014b;Huang et al, 2014;Li et al, 2001Li et al, , 2013aLi et al, ,2013bMo et al, 2007;QRGST, 1981;Xiong et al, 2013;Yang et al, 1996). The granitoids of Middle Triassic to Early Jurassic indicated the closure of the Paleo-Tethys Ocean and the Eastern Kunlun area entered the intracontinental orogenic stage (Deng et al, 2015b;Guo et al, 1998;Kui et al, 2010;Li et al, 2015c;Mo et al, 2007;Li et al, 2015d;Ding et al, 2015;Hu et al, 2015;Wang et al, 2016).…”

Petrogenesis and tectonic setting of the Shiduolong skarn Pb–Zn deposit in the East Kunlun Orogenic Belt: Constraints from whole‐rock geochemical, zircon U–Pb and Hf isotope analyses

“…In the Eastern Kunlun Orogenic Belt, the magmatism was continuous from the Late Paleozoic to the Early Mesozoic, due to the subduction of oceanic crust (Guo, Deng, Xu, Mo, & Luo, ). The predominant Triassic granitoids in the EKOB were generally considered to be related to the subduction of the Paleo‐Tethys Ocean and subsequent continent–continent collision that induced the injection of mantle melts into the lower crust (Liu et al, ; Xiong et al, , ). It is important to confirm the closing time of the Paleo‐Tethys Ocean for further understanding of the tectonic setting of Triassic granitoids in the EKOB.…”

“…It was divided into three tectonic terranes by the North East Kunlun Fault, the Central East Kunlun Fault, and the South East Kunlun Fault from north to south (Figure b). The three terranes are North East Kunlun Terrane (NEKT), Central East Kunlun Terrane, and South East Kunlun Terrane (SEKT; Xiong, Ma, Jiang, Liu, & Huang, ; Xiong et al, ). These terranes gradually collided and amalgamated with each other from north to south and were sheared by the sinistral strike‐slip Altyn Tagh fault (Li et al, ; Li et al, ).…”

Petrogenesis and geodynamic implications of the Mid-Triassic lavas from East Kunlun, northern Tibetan Plateau

“…(3) Oceanic subduction-induced mafic dyke swarms with ages of 251-253 Ma are present in East Kunlun (Xiong et al, 2011(Xiong et al, ,2013.…”

“…Smaller solid circles denote the locations of U-Pb dating, whereas bigger dotted circles show the positions of Lu-Hf analyses.Fig.5 Zircon LA-ICP-MS U-Pb Concordia diagrams for two rhyolite samples from the HSG volcanic rocks.Fig.6 ε Hf (t) vs. age (Ma) diagram of rhyolites from the HSG volcanic rocks in EastKunlun. The field of the Permian-Triassic mafic dyke in the EKOB is fromXiong et al (2011Xiong et al ( , 2013. The data for the Permian-Triassic granitoids in the EKOB are fromXiong et al (2012).…”