Abstract:
The Longsang mining area in Tibet, located in the eastern section of the Gangdese metallogenic belt, boasts favorable geological settings and conditions for mineralization. To guide mineral exploration and prospecting in the mining area, this study investigated the anomalous characteristics of 13 elements (e.g., Cu, Mo, Au, Ag, Pb, and Zn) in the 1∶
10000 soil geochemical survey results using exploratory data analysis (EDA). The results of this study indicate that the primary ore-forming elements, Cu and Mo, in the mining area show strong enrichment and considerable variation, suggesting great metallogenic potential and promising prospects for ore exploration. Based on the soil geochemical integrated anomalies, two anomaly zones were delineated: J1 and J2. The J1 anomaly zone is distributed in the west-central part of the mining area, displaying a large scale and a high degree of overlap between Cu and Mo anomalies. In contrast, the J2 anomaly zone is located in the south-central part of the mining area. In this zone, Cu predominates among anomalous elements, while Mo anomalies are nonsignificant. Engineering verification was carried out for the two anomaly zones. Drilling engineering preliminarily revealed the presence of deep Cu-Mo ore bodies in the J1 anomaly zone. It is proposed that the deep part of the area along the dip direction of the ore body in the northwestern part of the J1 anomaly zone and the NE-SW strike of the ore body are key prospecting targets in the Longsang mining area. The results of this study provide a scientific basis for further prospecting arrangement in the mining area.