Was there Jurassic paleo-Pacific subduction in South China?: Constraints from 40Ar/39Ar dating, elemental and Sr–Nd–Pb isotopic geochemistry of the Mesozoic basalts

Mantle origin of the Emeishan large igneous province (South China) from the analysis of residual gravity anomalies

“…3, in South China, small positive gravity anomalies (b +100 mGal) are confined to regions near the ocean and offshore. Considering a larger geographic area, negative gravity anomalies (about − 200 mGal) can be Chen et al (2008) and Liu et al (2012); the distribution of the Permian basalts is based on Xu et al (2004 observed in parts of the Qinling-Dabie orogen and the Sichuan basin. In the Songpan-Ganzi block of the Tibetan Plateau, the Bouguer gravity decreases westward to progressively more negative values, reaching up to − 550 mGal.…”

Opening and evolution of the South China Sea constrained by studies on volcanic rocks: Preliminary results and a research design

“…Mesozoic mafic magmatism occurred in the South China interior, for example, in southern Jiangxi, southern Hunan, and western Fujian provinces [73,74]. Toward the late Mesozoic-early Cenozoic, magmatism migrated to the southeastern and southern margins of South China, forming the Sanshui, Lianping, and Heyuan volcanic basins and that of the Pearl River Mouth [9,48].…”

Mesozoic large magmatic events and mineralization in SE China: oblique subduction of the Pacific plate

“…Hsu 1943;Gilder et al 1991;Zhou and Li 2000;Zhou et al 2006;Zhang et al 2007a;Chen et al 2008). Several tectonic models have been postulated to explain the Mesozoic evolution of SE China (Hsü et al 1990;Gilder et al 1991;Li 2000;Zhou and Li 2000;Wang et al 2003;Zhou et al 2006;Chen et al 2008;Wong et al 2009).…”

“…Hsu 1943;Gilder et al 1991;Zhou and Li 2000;Zhou et al 2006;Zhang et al 2007a;Chen et al 2008). Several tectonic models have been postulated to explain the Mesozoic evolution of SE China (Hsü et al 1990;Gilder et al 1991;Li 2000;Zhou and Li 2000;Wang et al 2003;Zhou et al 2006;Chen et al 2008;Wong et al 2009). Most models can be classified into one of two types: an active continental margin related to the northwestward subduction of the Pacific plate in the Mesozoic (Jahn et al 1990;Zhou and Li 2000;Zhou et al 2006;Chen et al 2008); or an intraplate lithospheric event, for example, a result of the closure of an oceanic basin in the SE China interior (Hsü et al 1990;Li 1998).…”

“…Several tectonic models have been postulated to explain the Mesozoic evolution of SE China (Hsü et al 1990;Gilder et al 1991;Li 2000;Zhou and Li 2000;Wang et al 2003;Zhou et al 2006;Chen et al 2008;Wong et al 2009). Most models can be classified into one of two types: an active continental margin related to the northwestward subduction of the Pacific plate in the Mesozoic (Jahn et al 1990;Zhou and Li 2000;Zhou et al 2006;Chen et al 2008); or an intraplate lithospheric event, for example, a result of the closure of an oceanic basin in the SE China interior (Hsü et al 1990;Li 1998). Other models, such as wrench faulting and/or continental rifting and extension (Gilder et al 1991;Li 2000;Wang et al 2003Wang et al , 2005c, have also been proposed based on the intracontinental lithospheric extension and thinning since the early Mesozoic (Wang et al 2006).…”