Caledonian granitoids in the Jinxiu area, Guangxi, South China: Implications for their tectonic setting
文摘
The Late Ordovician, Early and Late Silurian granite emplaced in the Jinxiu area, they show no arc magma affinity. The magmas were derived from re-melted Paleoproterozoic continental crustal. There is lack of direct evidence for existence of any Paleozoic oceanic crust in the Jinxiu area and vicinity.