Generation of Triassic post-collisional granitoids in the Linxi region (Inner Mongolia, NE China) and crustal growth in the eastern Central Asian Orogenic Belt through melting of relict oceanic crust

Geochemistry and geochronology of basic igneous rocks in Bairin Right banner, southeastern inner Mongolia, China: Implications for the final closure of the Paleo—Asian Ocean along the Xar Moron suture zone

“…The concordant mean ages of the samples of massive basalt, diabase, and pillow basalt were 272.0 ± 2.8 Ma, 261.5 ± 3.2 Ma, and 256.5 ± 2.5 Ma, respectively; these ages, in conjunction with the ages of the gabbro in the Banlashan area (256 Ma, Miao et al, 2008) and the O-type adakitic andesite in the Bairin Right Banner area (257 Ma, Yang et al, 2018), represent intensive Late Permian magmatic activity. The age range of 250-200 Ma can be interpreted as the regional syn-to postcollisional magmatic events, i.e., Shuangjingzi granites (Li et al, 2007), Jianshetun granites (Liu et al, 2016), and Triassic granitic intrusions in the northern margin of the NCC (Zhao et al, 2019;Jing et al, 2022).…”

“…The study of paleomagnetic data of volcanic-sedimentary strata showed that the Songliao accretionary terrane and the northern margin of the North China Craton had reached around 30 °N in the Permian (Ren et al, 2021;Jiang et al, 2022). In the Triassic, a large syn-collision or postcollision magmatic belt was formed as a result of the collision of the North China and the Siberian plates (Li et al, 2007;Wu et al, 2011;Eizenhöfer et al, 2014;Liu et al, 2014;Zhao et al, 2019;Zhao et al, 2021). A large magmatic belt was formed of Shuangjingzi Bimica granites (237-229 Ma), Zhuanshanzi granites (246 Ma), Jianshetun granites (249 Ma), Longtoushan granites (241-226 Ma), Xinlin granites (241 Ma), Lanjiayingzi granodiorites (242 Ma), Baiyinxile pasture monzonitic granites (246 Ma), Xilinhot granites (233 Ma), Yuanbaoshan granites (239 Ma), and Wuyingzi syenogranites (249 Ma) in the Keshiketengqi area.…”

Ore Genesis of the Baishitouwa Quartz–Wolframite Vein-Type Deposit in the Southern Great Xing’an Range W Belt, NE China: Constraints from Wolframite In-Situ Geochronology and Geochemistry Analyses

“…These tectonic components are separated by major faults, including the Xinlin-Xiguitu Fault, the Hegenshan-Heihe Fault, the Mudanjiang Fault, and the Solonker-Xar Moron-Changchun Fault (SXCF) [37,38] (Figure 1). The tectonic evolution of the area was closely related to the Paleo-Asian Ocean (PAO) regime during the Paleozoic to Early Mesozoic, which led to the amalgamation of several microcontinental blocks and the formation of multiarc systems and accretionary complexes [38,[63][64][65][66][67][68]. Scissor-type closure of the PAO occurred during the Late Permian-Middle Triassic period along the SXCF, followed by a soft collision between the North China Craton and Siberian Craton [69][70][71][72].…”

Permian lateral crustal growth and reworking along the Solonker suture zone (North China) constrained by high εHf(t) igneous rocks

“…The Phanerozoic crustal growth along the CAOB is dominated by lateral accretion. Although much attention has been paid to the Phanerozoic crustal growth in the CMAB (Chen, Yang, Zhang, & Sun, 2014;Li et al, 2017;Sengor, Natal'in, Sunal, & van der Voo, 2018;Tang et al, 2014;Tang et al, 2017;Tian et al, 2018;Zhang, Zhao, Ye, Liu, & Hu, 2014;Zhao, Li, Li, & Guo, 2019), the volume and style of the crustal growth and the interactions between crustal growth and reworking in the CMAB are still pending problems.…”