甘肃党河南山地区石块地金矿地质地球化学特征

石块地金矿位于党河南山金成矿带上,是由断裂构造控制的岩浆热液型金矿。通过1∶5万水系沉积物测量,在本区圈定了As-3综合异常,并进一步利用1∶1万土壤测量进行解剖,发现了石块地金异常区,经过后期工程揭露,发现了有价值的金矿体7条。综合研究表明,勘查区金矿体赋存岩性均为花岗斑岩,并严格受NW—SE向断裂构造的控制。主矿体的延伸方向与土壤测量圈定的Au异常长轴展布方向一致,充分证明了在该区运用化探手段找矿的重要指导作用。

Geological and Geochemical Characteristics of Shikuaidi Gold Deposits in Danghenanshan, Gansu Province

Shikuaidi gold deposit is located in the Nanshan gold metallogenic belt. It is a magmatic hydrothermal type gold deposit controlled by the fault structure. Through 1:50000 stream sediment survey, in the delineation AS3 comprehensive anomalies, and further use of 1:10000 soil survey were dissected, found stones gold anomaly area, after the late works to expose, discovered the value of ore bodies 7. Comprehensive study shows that ore body occurrence lithology are granite porphyry, and strictly controlled by NW - se to the control of the fault structure. Main ore bodies in the extending direction and soil survey in the delineation of the distribution of Au anomaly long axis direction, fully proved that the use of geochemical methods for prospecting of important guiding role in the area.