蓬莱大柳行金矿区水沟—时金河断裂构造特征及其找矿意义

Structural feature and its ore search significance of Shuigou Shijinhe fault in Daliuhang Goldfield,Penglai,Shandong Province

以构造地质及构造地球化学等研究为依据，重新厘定了水沟—时金河断裂的规模，弄清了它的引张压扭张扭的构造性质，探讨了断裂形成时代、演化历史及其对岩浆作用和成矿作用的控制规律。认为该断裂具有导容矿双重性。导矿作用发生在断裂的开放构造环境及相关部位，并在其两侧形成石英脉金矿床。容矿作用发生在断裂的封闭构造环境及相关部位，在断裂内形成蚀变岩型金矿床。实现了找矿勘探方向由派生断裂向主干断裂的战略转移，为扩大金矿资源开辟了新途径。

Based on the research results of the structural geology and the tectonic geochemistry etc.of the Shuigou Shijinhe Fault(S SF),this paper collates and stipulates anewly its scales,clarifies its structural feature of the extension—compresso shear—tenso shear and make an approach to the forming age and the evolutional history of the S SF and its control regular on the magmatism and the ore formation in this gold field.We think that the S SF has the double structural feature i.e. the structure just as the Passage way for ore fluid and the host structure.The former occured in the open structural environment of the S SF and its interrelated place getting the quartz vein gold deposit formed in the both sides of the S SF.The latter occured in the enclosed structural environment of the fault and its interrelated place getting the gold deposit of the altered rock type formed in the S SF.These bring about the strategic transfering of the ore prospecting orientation from the outside to the inside of the S SF and open a new way to expand the natural resources of the golddeposit.