Petrogenesis and significance of early Yanshanian syenite-granite complex in eastern Nanling Range

Indosinian isotope ages of plutons and deposits in southwestern Miaoershan-Yuechengling, northeastern Guangxi and implications on Indosinian mineralization in South China

“…Felsic melts resulting from the melting of the South China base triggered by the Indosinian orogeny could Luxi complex in southern Jingxi-northern Guangdong 239 ± 5 Ma (zircon LA-ICP-MS) [55] Xiazhuang complex in southern Jingxi-northern Guangdong 236 ± 8 Ma (zircon LA-ICP-MS) [55] Exiantang Sn-deposit in Jingxi 231.4 ± 2.4 Ma (muscovite 40 Ar/ 39 Ar plateau age) [56] Wuliting intrusion in Daji Mountain, Jingxi 238.9 ± 1.5 Ma (zircon SHRIMP U-Pb) [57] Baimianshi granite in Jingxi 249.9 ± 1.3 Ma (Rb-Sr isochron) [58] Darongshan intrusion in southeastern Guangxi 233 ± 5 Ma (zircon SHRIMP) [59] Jiuzhou intrusion in southeastern Guangxi 230 ± 4 Ma (zircon SHRIMP) [59] Taima intrusion in southeastern Guangxi 236 ± 4 Ma (zircon SHRIMP) [59] Limu deposit in northeast Guangxi 214.1 ± 1.9 Ma (muscovite 40 Ar/ 39 Ar) [60] Miaoershan-Yuechengling batholith in northeastern Guangxi 243.0 ± 5. Hehuaping Sn deposit in southern Hunan 224 ± 1.9 Ma (molybdenite Re-Os isochron) [61] Weishan monzonitic granite in Hunan 244 ± 4 Ma (zircon SHRIMP) [62] Guandimiao intrusion in Hunan 239 ± 3 Ma (zircon SHRIMP) [62] Granite from the Baima Mountain in Hunan 243 ± 3 Ma (zircon SHRIMP) [62] Longyuaba intrusion in southern Jingxi-northern Guangdong 241.0 ± 5.9 Ma, 241.0 ± 1.3 Ma, 210.9 ± 3.8 Ma (zircon LA-ICP-MS) [63] Granite in the eastern Zhuguangshan 204 to 235 Ma (zircon SHRIMP) [58] Xiazhuang granitoid in northern Guangdong 228.0 ± 0.5 Ma (zircon SHRIMP) [58] Syenite in southwestern Fujian 252 to 242 Ma (zircon SHRIMP) [64] Topaz bearing granite in western Fujian 226 Ma (zircon SHRIMP) [65] Hexi group plagioclase amphibolites in Jingning, Zhejiang 252 ± 5 Ma (metamorphic zircon SHRIMP) [66] Basic-ultrabasic rock in southwestern Zhejiang Metamorphic event at 251 to 233 Ma [67] Nappe structure in Zhejiang (P 3 -T 1 ) [68] Taiwan Metamorphism at 260 to 240 Ma [69] Syenite in Hainan 244 ± 7 Ma (zircon SHRIMP ) [70] have exsolved volatile phases during the ascending and crystallization of the melts such as those of the Yanshanian granite. Once these volatile phases exsolved from the felsic melts the rare metals and REE will participate into the volatile phase, which favors the formation of the Indosinian granitoid related deposits.…”

The Early Jurassic tectono-magmatic events in southern Jiangxi and northern Guangdong provinces, SE China: Constraints from the SHRIMP zircon U–Pb dating

“…It has been traditional believed that the sections in the Dongkeng and Linjiang basins, Longnan County of southern Jiangxi, are typical sections composed of Early-middle Jurassic (180-165 Ma) bimodal volcanic rocks (Fan and Chen, 2000;Kong et al, 2000;Chen et al, 2002Chen et al, , 2005. There are series of bimodal volcanic rocks and A-type granites such as the Dongkeng and Linjiang bimodal volcanic rocks, the Zhaibei and Beitou A-type granites, the Xialan complex, etc., which distribute in the southern Jiangxi and the northern Guangdong provinces.…”

Chronological and geochemical studies of granite and enclave in Baimashan pluton, Hunan, South China

“…Previous studies generally focused on Yanshanian granites [1,[3][4][5][6][7][8][9] , but Indosinian granites draw less geologists' attention. Relative to Yanshanian granites in SC, Indosinian granites in SC occur as dispersed small plutons [10,11] , whereas the distribution of Indosinian granites in Hunan Province is relatively extensive as total outcrop area is more than 5000 km 2 (from refs.…”