Control effect of ductile shear zone on gold mineralization and its ore-searching prospects in Yongshan area, Leping City, Jiangxi Province.

Autor: LI Kai, CHEN Haopeng, WAN Huan, YANG Xihao, LI Yexing
Zdroj: East China Geology / Huadong dizhi; Dec2023, Vol. 44 Issue 4, p376-385, 10p
Abstrakt: The newly discovered Yongshan gold deposit in Leping City, Jiangxi Province is located in the southeastern Shanmen-Yongshan Au polymetallic metallogenic prospect area, belonging to the northern part of eastern Qinzhou-Hangzhou Metallogenic Belt. According to field geological survey and indoor comprehensive research, the ore-controlling characteristics of Yongshan gold deposit in Leping City were studied with the discussion of the relationship between the NE-NEE-trending ductile shear zone across the mine from west to east and gold mineralization. This paper summarized ore-forming factors and analyzed its ore-searching prospects based on the characteristics of soil geochemical anomalies. The results show that the Yongshan gold deposit occurs in the Neoproterozoic shallow metamorphic rock strata with obvious ductile deformation, the NE-trending ductile shear zone is the main ore-controlling and ore-guiding structure, and the upper member of Fengshuling Formation is the ore-bearing wall rock. The Yongshan gold deposit is determined as ductile shear tectonic-altered rock type and its NE-trending ductile shear zone has a good ore-searching prospects. The discovery of this gold occurrence provides a new thought to the gold searching in the northern part of eastern Qinhang Metallogenic Belt, expanding the prospecting space in this area. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index