Geochemical Characteristics and Prospecting Model of Xishan Deposit, Linglong Gold ore Field

摘要

Xishan deposit lies at the east end of Linglong gold ore field which is regionally seated in the east part of Zhaoyuan-Yexian gold ore belt and at the east end of Fushan anticlinorium. Linglong granite is widely distributed in the area. Old metamorphic rock series exist only in the form of relict. In addition, faults and fractures are well-developed and filled with different kind of veins. The distribution of ore veins within the range of the ore deposits is subject to the frac-tural structures of the field. The main ore veins subject to the second-class trunk fractures include veins No. 121, No. 126, No. 131, No. 108, No. 53, No. 83 and No. 90 which are distributed in sequence from north to south generally trending NNE and NEE and inclining NW at a gentle angle. The branch ore veins within the upper wall of the main ore veins are trending parallel to them whereas inclining at a high angle. The former and the latter converge at different levels and form a Y type structure. Our team used to develop geological and Geochemical prospecting dealing with veins No. 53 and No. 56.