Seismic evidence for plume-induced rifting in the Songliao Basin of Northeast China

Continental dynamics of Eastern China: Insights from tectonic history and receiver function analysis

“…160-130 Ma (Wang and Xu, 2003;Zhang et al, 2011c) occurred almost synchronously with the magmatic activity in NE China ). An upwelling mantle plume might have domed up the continental crust by 2-3 km, and rifting started above the center of plume head by the extensive development of listric normal faults, which is consistent with geological observation and seismic evidence in this area (Li, 1998;He et al, 2014a). Similar plume-related models of rifting and rift magmatism are demonstrated in the East African Rift System (Karson and Curtis, 1989;Burke, 1996;Mechie et al, 1997;Simiyu and Keller, 1997).…”

“…The upwelling mantle plume can lead to underplating beneath the lower crust generating a mafic/ultramafic lower crust (Zandt and Ammon, 1995;Pirajno, 2007;He et al, 2014a). The mafic and ultramafic lower crust partially overlaps with the deepened region of the upper mantle transition zone (boundary by the 410 and 660 km discontinuities) in the northern part of the Trans-North China Orogen and the eastern NCC confirming an upwelling mantle plume and underplating of the lower crust (Fig.…”

“…The CCP images of receiver function show a depression in the topography of the 410 and 660 km discontinuity (Ai et al, 2003;He et al, 2014a) beneath the central Songliao Basin (Fig. 2).…”

Estimate of Hot Dry Rock Geothermal Resource in Daqing Oilfield, Northeast China

“…Besides, the Daqing Oilfield is extremely abundant in medium to high enthalpy geothermal resources. The Daqing Oilfield is located in the northern part of the central Songliao basin, and beneath it a mantle pillow has developed due to upwelling of the upper mantle [12,13]. The region became a hot spot in the crust with high geothermal gradients, with an average value of 38.7 • C·km −1 [14].…”

Crustal thickening and uplift of the Tibetan Plateau inferred from receiver function analysis

“…The various studies undertaken in these regions include deep seismic (Hauck et al, 1998;Galve et al, 2002;Haines et al, 2003;Meissner et al, 2004;Jiang et al, 2006;Bai et al, 2013;Chen et al, 2013), seismic tomography (Zhang et al, 2014a,b), receiver function (He et al, 2014e;Wang et al, 2010a,b;Tian and Zhang, 2013;Xu et al, 2013), magnetotellurics (Wei et al, 2001;Unsworth et al, 2004), gravity (Jin et al, 1996; Locations of the 18429 teleseismic events used in this study with an epicentral distance between 30°and 95°for a seismic station. Braitenberg et al, 2000), seismology (Mitra et al, 2005;Li et al, 2010a,b;Wei et al, 2013), geothermics (Chung et al, 2005a,b) and rheology.…”