Geochronology and geochemistry of volcanic rocks from the Shaojiwa Formation and Xingzi Group, Lushan area, SE China: Implications for Neoproterozoic back-arc basin in the Yangtze Block

Petrology, geochemistry and zircon U–Pb dating of Band-e-Hezarchah metabasites (NE Iran): An evidence for back-arc magmatism along the northern active margin of Gondwana

“…These rocks plot in a field near bulk silicate Earth (BSE) in initial Nd vs. 87 Sr/ 86 Sr diagram (Zindler and Hart, 1986) (Fig. 4), indicating they were probably derived from a subcontinental lithospheric mantle and/or a mantle metasomatized by subducted sediments (Li et al, 2013).…”

“…These rocks were derived from a subcontinental lithospheric mantle source and/or a mantle metasomatized by subducted sediments (Li et al, 2013) above a subducting slab. The rocks are represented by high Zr values in Y vs. Zr diagram (Sun and McDonough, 1989) (Fig.…”

Petrogenesis and mantle source characteristics of Cenozoic alkaline diabase, Jiangxi Province, southeastern China

“…The South China Block was formed through amalgamation of the Yangtze and Cathaysia Blocks during the Proterozoic (Guo et al 1980;Zhou and Zhu 1993;Charvet et al 1996;Greentree et al 2006;Ye et al 2007;Li et al 2009bLi et al , 2011Li et al , 2013aLi et al , 2013b, and the JiangshanShaoxing-Pingxiang Fault is considered to be the major suture zone between the two blocks ( Figure 1) Wong et al 2011). An alternative interpretation is that it was formed through accretion of multiple terranes and is thus an accretionary orogen (e.g.…”

“…As mentioned earlier, it is widely accepted that the South China Block formed through amalgamation of the Yangtze and Cathaysia blocks in Neoproterozoic time ('Jinningian movement', Charvet et al 1996;Wang et al 2007aWang et al , 2008Zhou et al 2009;Li et al 2009bLi et al , 2011Li et al , 2013aLi et al , 2013b and was influenced by several later tectonic events including the Late Ordovician-Silurian ('Caledonian', Shu et al 1991;Ren 1991;Shu 2006;Wang et al 2007b), late Permian-Triassic ('Indosinian', Chen 1999;Wang et al 2002Wang et al , 2005, and middle Mesozoic ('Yanshanian', Zhou and Li 2000;Li et al 2009a) tectonothermal events. Until the Late Cretaceous, southeastern China was marked by extensive subduction-related volcanism coupled with intrusions of syntactic granitoids (Jahn et al 1990;BGMRFJ 1996;Li et al 2009a).…”

Middle Neoproterozoic (∼845Ma) continental arc magmatism along the northwest side of the Jiangshan–Shaoxing suture, South China: Geochronology, geochemistry, petrogenesis and tectonic implications

“…827-819 Ma Fuchuan ophiolites (Zhang et al, 2012a(Zhang et al, ,b, 2013a; NE Jiangxi ophiolites; ca. 970-890 Ma Shuangxiwu volcanic rocks (Li et al, 2009) 2012a; Wang et al, 2006Wang et al, , 2007Wang et al, , 2008Wang et al, , 2012Li et al, 2013;Zhao et al, 2011Zhao et al, , 2013aYao et al, 2013Yao et al, , 2014Xu et al, 2014). For instance, recent new geochronological and geochemical data of the Fuchuan ophiolite suite indicate that the ophiolites formed during the ages of 827-819 Ma and exhibit typical features of suprasubduction zone (SSZ) type ophiolites Zhang et al, 2012aZhang et al, ,b, 2013a, which argues against the early Neoproterozoic (∼880-860 Ma) amalgamation.…”