Lithospheric electrical structure in the central Tibetan Plateau and its tectonic significance

Lithospheric Structure Near the Northern Xainza‐Dinggye Rift, Tibetan Plateau–Implications for Rheology and Tectonic Dynamics

“…(2018) and Sheng, Jin, Wei, et al. (2019), and the electrical structure of the line from the 3‐D model is found to be generally consistent with both previous studies. Differences between the models are attributed to the different inversion methods used, and the unique smoothing parameters and normalization parameters, as well as the fact that not all of the MT sites are used in each study.…”

“…The conductive layers in this study are located mostly in the Lhasa terrane. Previous studies (Dong et al., 2016; Jin, 2009; Le Pape et al., 2015; Liang et al., 2018; Sheng, Jin, Wei, et al., 2019; Unsworth et al., 2005; Zhang, 2017) indicated that the conductive layers in the southern Tibetan Plateau may be caused by partial melting and/or aqueous fluids, and possibly related to mineralization in the Gangdese metallogenic belt (Sheng, Jin, Liang, et al., 2019; Wang et al., 2017b). The subducted Indian lithospheric mantle beneath the present‐day Lhasa terrane is generally considered to be formed of anhydrous eclogite, and thus cannot supply additional water for the lower crust (Nábělek & Nábělek, 2014).…”

“…Horizontal slices of the 3‐D electrical resistivity model are shown in Figure 3, vertical slices along the west line and east line are shown in Figure 4, and vertical slices along the south line and north line are shown in Figure 5. In order to choose the direction of the cross‐sections, we follow analysis of the geoelecric strike direction for the N‐S directed profiles (Liang et al., 2018; Sheng, Jin, Wei, et al., 2019), which indicates that the preferred strike was approximately N110°E, and selected north and south profiles oriented perpendicular to this, that is, at N20°E. Similarly, because the strikes of the N‐S normal faults are oriented approximately N10°E, the directions of the east and west profiles are chosen to be N100°E.…”

“…The shallow conductor (WC1 and EC1) detected above the inferred location of the Indian Plate may result from several causes, including: aqueous fluids, suture zone crush materials, or buoyant thermal materials caused by subduction erosion (see Sheng, Jin, Wei, et al., 2019). Nábělek and Nábělek (2014) and Nábělek et al.…”

Crustal reworking and growth during India–Asia continental collision: Insights from early Cenozoic granitoids in the central Lhasa Terrane, Tibet

“…The central Lhasa Terrane contains granitoids of various ages, and these granitoids provide clues regarding the composition of the crust and mantle and the nature of tectonic-magmatic events during India-Asia collision (Cao et al, 2019;Chung et al, 2005;Dai et al, 2020;Sheng et al, 2019;H. Zheng et al, 2018;Zhu et al, 2015).…”