Intracontinental superimposed tectonics--A case study in the Western Hills of Beijing, eastern China

Late Mesozoic compressional to extensional tectonics in the Yiwulüshan massif, NE China and its bearing on the evolution of the Yinshan–Yanshan orogenic belt

“…Namely, 1) west-directed subduction of a Paleo-Pacific plate during the Mesozoic causes intra-or back-arc extension (Watson et al, 1987;Traynor and Sladen, 1995;Ren et al, 2002); 2) roll-back of the westward subducting Paleo-Pacific oceanic plate, and post-orogenic collapse is following the Late Jurassic to Early Cretaceous contraction ; 3) South-Southeast-directed subduction of the Mongol-Okhotsk oceanic plate during the Mesozoic is responsible for extension (Wang et al, 2002); 4) interaction between the Pacific Zorin, 1999); Buteel (Mazukabzov et al, 2006;Donskaya et al, 2008); Nartyn (magmatic dome, Daoudene et al, 2009), Zagan (Donskaya et al, 2008); Ed (Ereendavaa, Daoudene et al, 2009Daoudene et al, , 2011; Cb (Central basement uplift of Songliao basin, Zhang et al, 2000); Xy (Xiuyan magmatic dome, Lin et al, 2007); Yg (YaganOnch Hayrhan, Zheng et al, 1991;Webb et al, 1999); Hohhot (Davis et al, 2002;Davis and Darby, 2010); Kl (Kalaqin magmatic dome, Han et al, 2001); Ym (Yunmengshan, Zheng et al, 1991;Davis et al, 1996Davis et al, , 2002; Yw (Yiwulüshan, Darby et al, 2001Darby et al, , 2004Lin and Wang, 2006); Xs (Xishan pluton, Wang et al, 2011c); Gd (Gudaoling syntectonic granite, Guan et al, 2008;Lin et al, 2011); Sl (South Liaodong Peninsula, Yin and Nie, 1996;Liu et al, 2005;Lin and Wang, 2006;Lin et al, 2008); Np (Nampho magmatic dome, Wu et al, 2007); Lg (Linglong-Guojialing complex dome, Charles et al, 2011); Jn (Jiaonan extensive dome, Hacker et al, 2009)…”

Late Carboniferous syn-tectonic magmatic flow at the northern margin of the North China Craton—Evidence for the reactivation of cratonic basement

“…This time was marked by high rates of erosion and substantial exhumation, controlled by reactivation of the craton and magmatic flow in the middle-lower crust. After the cessation of magmatic flow, the northern margin of the NCC was extensively deformed at 270-210 Ma (Wang et al, 2011) and affected by tectonic transformation at 165-150 Ma (Wang and Li, 2008;Wang et al, 2011). This deformation indicates that reactivation of the NCC initially occurred during 320-300 Ma, along its northern margin.…”

“…The cratonic margin was also deformed, accompanied by reactivation of the craton, after the magmatic flow at 320-300 Ma (Wang et al, 2011) (Fig. 9).…”

Superposed deformation in the Helanshan Structural Belt: Implications for Mesozoic intracontinental deformation of the North China Plate

“…Some researchers have suggested that the North China Plate was subjected to N-S shortening during the Triassic, leading to the formation of a series of E-W trending folds and thrusts in the plate interior (e.g., Lou et al, 2008;Li et al, 2009Li et al, , 2013Wang et al, 2011;Zhang et al, 2014) due to collision of the North China Plate with the Siberian Plate to the north and with the Yangtze Plate to the south, thereby forming the E-W trending Yinshan-Yanshan Orogen (Zhao et al, 1994;Zhang, 1999;Dong et al, 2000;Cui and Wu, 2002) and the Qinling-Dabie Orogen (Ratschbacher et al, 2003;Dong et al, 2011). However, an extensional event is thought to have occurred in this region and the North China Craton in the Late Triassic, as evidenced by detailed sedimentological studies (Liu, 1998;Liu et al, 2013;Ritts et al, 2004;Meng et al, 2014) as well as the petrology and chronology of the Rujigou basalt Yang et al, 2010) in the Helanshan Structural Belt.…”

“…In this scenario the principal structural framework in the area was developed in the Mid-Late Jurassic as the result of multi-directional convergence toward the Ordos block from the Siberian Plate to the north, the Pacific Plate to the east, and the Qiangtang Block to the southwest (Dong et al, 2007(Dong et al, , 2008a. This tectonic regime resulted in the formation of the multi-directional structural belts around the Ordos Block in the interior of the North China Plate, comprising numerous NE-trending fold-and-thrust belts including the Helanshan Structural Belt (Darby and Ritts, 2002), the Langshan Belt to the west of the Ordos Block (Darby and Ritts, 2007;Zhang et al, 2014), and the north Taihangshan Belt (Wang et al, 2011). The formation dynamics of these NE-trending structural belts appear to be related to the far-field effects of subduction of the Paleo-Pacific Plate along the eastern margin of the Asian Plate during the Late Jurassic Ritts, 2002, 2007;Wang et al, 2011;Zhang et al, 2014).…”