Magmatic and metamorphic events during the early Paleozoic Wuyi-Yunkai orogeny, southeastern South China: New age constraints and pressure-temperature conditions

Geochronological, geochemical and Nd–Hf–Os isotopic fingerprinting of an early Neoproterozoic arc–back-arc system in South China and its accretionary assembly along the margin of Rodinia

“…1 for the locations in the eastern South China Block. Li et al, 2010c;Wang et al, 2012b,c). Recent geochronological data have shown that the Neoproterozoic and even Paleozoic units are additionally presented within the previously mapped basement succession (e.g., Li et al, 1998;Wang et al, 2007cWang et al, , 2010bWang et al, , 2011bWang et al, , 2012cWan et al, 2007Wan et al, , 2010Yu et al, 2009Yu et al, , 2010Li et al, 2010aLi et al, ,c, 2011.…”

Discovery of Paleoproterozoic rapakivi granite on the northern margin of the Yangtze block and its geological significance

“…The discovery of 1.85 Ga Huashanguan rapakivi granites provides important evidence for the formation and cratonization of the Yangtze block in the Paleoproterozoic, and for its later tectonic transformation from collision to extension. Recently, there have been reports on orogenic events of 1.89-1.83 Ga [84], and breakup events of 1.80-1.76 Ga [85][86][87] in the Cathaysian block. These events took place a little later than those in the Yangtze block, which indicates that the two blocks may have been located in different positions in the supercontinent system.…”

Petrogenesis of the early Paleozoic strongly peraluminous granites in the Western South China Block and its tectonic implications

“…Ting (1929) initially defined the event as the Kwangsian movement, whereas other workers subsequently named it as the ''Caledonian Orogeny'' (e.g., Huang, 1978;Ren, 1991) or the Wuyi-Yunkai orogeny (e.g., Li et al, 2010;Zhang et al, 2012b). As for the nature of the orogeny, some researchers believed that the mountain-building event was the result of the finial closure of the Huanan/Paleotethys Ocean and subsequent collision of the Yangtze and Cathaysia Blocks (e.g., Guo et al, 1989;Hsü, 1994;Chen et al, 2006;Yan et al, 2006).…”

“…It is well documented that numerous economically important metallic deposits (i.e., W, Sn, Nb, Ta and REE deposits) are closely associated with granites in the area (e.g., Hua et al, 2013 and references therein). Therein, the early Paleozoic granitoids that are dominated by SP granitic rocks (e.g., Wang et al, 2007Wang et al, , 2011Li et al, 2010;Zhang et al, 2012b) with minor I-type granites (e.g., Huang et al, 2013;Zhao et al, 2013), are distinctly different from other granitic generations in the SCB, although the total exposure is relatively less than those of the Yanshanian granites (e.g., Sun, 2006;Hua et al, 2013). The existence of such a huge volume (up to 10,000 km 2 ) of early Paleozoic SP granitoids in the SCB has triggered extensive discussion about its origin and genesis, particularly in recent five years (e.g., Wang et al, 2007Wang et al, , 2011Wang et al, , 2012Li et al, 2010;Zhang et al, 2012b).…”

“…Therein, the early Paleozoic granitoids that are dominated by SP granitic rocks (e.g., Wang et al, 2007Wang et al, , 2011Li et al, 2010;Zhang et al, 2012b) with minor I-type granites (e.g., Huang et al, 2013;Zhao et al, 2013), are distinctly different from other granitic generations in the SCB, although the total exposure is relatively less than those of the Yanshanian granites (e.g., Sun, 2006;Hua et al, 2013). The existence of such a huge volume (up to 10,000 km 2 ) of early Paleozoic SP granitoids in the SCB has triggered extensive discussion about its origin and genesis, particularly in recent five years (e.g., Wang et al, 2007Wang et al, , 2011Wang et al, , 2012Li et al, 2010;Zhang et al, 2012b). Nonetheless, the genesis and tectonic implications of these granites, particularly whether the mantle-derived magmas were involved in the SP granite formation, are still unclear due to the lack of contemporaneous mafic rocks, although some authors have invoked the addition of some basic materials to account for their geochemical signatures (e.g., Wang et al, 2011;Zhang et al, 2012b).…”