Triassic granitoids of the Qinling orogen, central China: Genetic relationship of enclaves and rapakivi-textured rocks

Apatite fission-track thermochronological constraints on the pattern of late Mesozoic–Cenozoic uplift and exhumation of the Qinling Orogen, central China

“…During the collision, the largest known ultrahigh-pressure metamorphic Dabie Terrane was formed, rapid uplift and exhumation of the DBT subsequently occurred Li et al, 2010b;Tu et al, 2012). A series of Triassic-Jurassic granites was emplaced in extensional settings or in transitional settings (from compression to extension) in the western part of Qinling Orogen, particularly in the NW-SQB (Wang et al, 2011a;Zhang et al, 2008). During the early part of the intracontinental deformation stage that followed the Late Triassic, the Qinling Orogen underwent mainly block faulting, rifting, and strike-slip deformation.…”

“…2 and 3). Of these eight plutons, the Mishuling and Liuba Granites were chosen to compare with the results of previous studies, especially for completing the thermal modeling (Enkelmann et al, 2006;Wang et al, 2011a); the Ningshan, Cuihuashan, and Lantian Granites were selected to complement previous research and spatial coverage (Enkelmann et al, 2006;Liu et al, 2013); and the Baoji, Foping, and Dongjiangkou granitic plutons were chosen to augment the samples collected in different belts and completed the spatial coverage. For each granitic pluton, the samples were collected from top to bottom of the exposed pluton, with an elevation difference of >50 m between each sample (Table 2; Fig.…”

“…1000 km and extending from the western Qinling to the Dabie Orogen, as revealed by studies of the structure, Mesozoic basins, and geochronology and geochemistry of the micro-blocks of the Qinling Orogen ( Fig. 2; Chen et al, 2010;Dong et al, 2011a;Hu et al, 2012;Meng et al, 2007;Meng and Zhang, 2000;Li et al, 2007;Ratschbacher et al, 2003;Shi et al, 2012Shi et al, , 2013Wang et al, 2011a;Yin andNie, 1993, 1996;Zhang et al, 2001Zhang et al, , 2010. For the intracontinental deformation, various fission-track and U-Th/He thermochronological investigations of the apatite and zircon have indicated that the Qinling Orogen experienced an intricate pattern of postorogenic uplift and exhumation during the Mesozoic-Cenozoic (Enkelmann et al, 2006;Hu et al, 2006aHu et al, , 2012Li et al, 2010a;Liu et al, 2009Liu et al, , 2013Shen et al, 2007;Tian et al, 2010;Wan et al, 2000Wan et al, , 2005Wang et al, 2011b;Xu et al, 2005Xu et al, , 2010Yang et al, 2013;Yin et al, 2001).…”

Origin of Miocene Cu-bearing porphyries in the Zhunuo region of the southern Lhasa subterrane: Constraints from geochronology and geochemistry

“…c, f, g)(Slaby et al, 2007; Gagnevin et al, 2008;Wang et al, 2011). The abundant K-feldspar minerals are feature of pseudo adakite-like rocks, indicating that the adakite-like features of monzonitic granite porphyries inherited Oxygen fugacity of the Zhunuo porphyries Recent research has shown that the porphyry Cu (Mo-Au) deposits could have developed not only in an arc setting, but also in a post-subduction setting(Hou et al, 2009; Richards, 2009).…”

Extreme variation of sulfur isotopic compositions in pyrite from the Qiuling sediment-hosted gold deposit, West Qinling orogen, central China: an in situ SIMS study with implications for the source of sulfur

“…c Simplified geologic map of the southern segment of the West Qinling orogenic belt where Qiuling is located iron lithophile elements and light rare earth elements but depleted in high field strength elements and heavy rare earth elements (Dong et al 2011). The post-collisional intrusions were emplaced between 217 and 200 Ma in an extensional setting as indicated by the rapakivi textures and mafic microgranular enclaves and mafic dikes present in many granitoid intrusions (Zhang et al 2008;Qin et al 2009;Wang et al 2011).…”