Anomalous characteristics and prospecting significance of deep drilling ZK6001 in Jinchangyu Gold Deposit, Jidong

Jinchangyu Gold Deposit, Jidong has made outstanding contributions to China’s gold industry. However, with years of mining, the shallow ore bodies have been basically exhausted. In order to verify the deep mineralization space, our unit conducted deep exploration in the mining area from 2022 to 2023, implementing borehole ZK6001 with a depth of 1 600 m. Induced polarization logging and core primary halo measurement are carried out in the borehole. Through core physical property measurement, polarization anomaly and geochemical analysis, two gold mineralization bodies are delineated in the deep. Their stratigraphic, structural and alteration characteristics are consistent with the characteristics of the upper ore bearing area, indicating that the mineralization type in the deep of Jinchangyu is in line with the mineralization zoning characteristics proposed by previous studies. Especially in exposing the F_I19 fault and the thick and large gold mineralization alteration zones on both sides, it indicates the structural characteristics and material sources of gold rich integrated deposits in the deep of Jinchangyu, proving the existence of a second gold rich integrated center in its deep.