Kinematics and geochronology of multistage ductile deformation along the eastern Alxa block, NW China: New constraints on the relationship between the North China Plate and the Alxa block

Origin of the Alxa Block, western China: New evidence from zircon U–Pb geochronology and Hf isotopes of the Longshoushan Complex

“…1). Additionally, ca.2.3 Ga magmatic events were also reported in the TC (Guo et al, 2003;Dong et al, 2011;Zhang et al, 2013b) (Xiu et al, 2002(Xiu et al, , 2004Lu et al, 2002;Liu, 2008 Magmatic rocks of 2.2-2.0 Ga were sporadically reported in the northern margin of the Ordos Block, including the Daqingshan and Wulashan (e.g., Wang et al, 1999;Wang and Xiu, 1996), BayanObo (e.g., Fan et al, 2010), Sanggan (e.g., Guo et al, 2001) and Huai'an…”

“…Consequently, 2.7-3.0 Ga may be an important episode of crustal growth in the western Alxa Block, and it coincides with the main crustal growth in the NCC or even more ancient cratons worldwide(Condie et al, et al, 2010; Zhai and Santosh, 2011 and references therein ). All these datasets provide beneficial evidence to verify the affinity between the Alxa Block and the NCC in the Late Neoarchean(Zhang et al, 2013a).Additionally, 2.5 Ga TTG gneisses have also been recognized inKuluketage (e.g., Long et al, 2012) and the Dunhuang Block(Zhang et al, 2013b) in TC. This implies that the TC and NCC possibly experienced a similar Early Precambrian tectonic evolution.…”

Linking the Alxa Terrane to the eastern Gondwana during the Early Paleozoic: Constraints from detrital zircon U–Pb ages and Cambrian sedimentary records

“…The Alxa Terrane has a long and complicated history, and different models have been proposed (Zhao et al, 2005;Dan et al, 2012;J. Zhang et al, 2013;Yuan and Yang, in press-a,b).…”

“…Zhang et al, 2011Zhang et al, , 2012J. Zhang et al, 2013;Yuan and Yang, in press-a,b) and that it has a close relationship with the Yangtze Terrane (Pan et al, 1987;Ge and Liu, 2000;Li et al, 2005;Ge et al, 2009;Zhang et al, 2012).…”

Macro‐and Microstructural, Textural Fabrics and Deformation Mechanism of Calcite Mylonites from Xar Moron‐Changchun Dextral Shear Zone, Northeast China

“…After the end of the CAOB formation that resulted in the amalgamation and compression of the NCC, Tarim Craton, SIB and several intervening microcontinents, intra -continental strike-slip faults are the prominent tectonic features of Central-Eastern Asia during the Early Mesozoic (Lamb et al, 1999;Johnson, 2004;Webb and Johnson, 2006;Webb et al, 2010;Zhao et al, 2013Zhao et al, , 2015Zhai et al, 2004;Zhang et al, 2013;Heumann et al, 2014). The strike-slip faults can be ascribed to the consequence of several tectonic events, such as the southward subduction of the Mongol-Okhotsk Ocean (Meng, 2003;Zorin, 1999;Enkin et al, 1992;Cogné et al, 2005;Liang et al, 2019), the northwestern subduction of Paleo-Pacific plate , and the far-field effects of the north-directed continental subduction between the NCC-South China Block (SCB) (Rowley et al, 1997;Liu et al, 2006;Meng and Zhang, 1999;Zhang et al, 2013).…”