青海省兴海县满丈岗金矿地质特征与找矿标志研究

Geological Characteristics and Prospecting Criteria of ManZhanggang Gold Deposit in Xinghai County,Qinghai Province

矿区地处鄂拉山造山带中南缘,大地构造位于宗务隆山—兴海坳拉槽,成矿区带属于满丈岗印支期成矿亚带,成矿条件较好。矿区出露的岩石地层主要为三叠系上统鄂拉山组地层(T_3e),西南部发育三条断层,中酸性脉岩较发育,矿化蚀变现象普遍,该矿床应为中—低温火山热液型金矿床,找矿标志明显,研究结果为以后的地质勘查工作提供了很重要的参考作用。

Mining area is located in the middle and south edge of the orozan orogenic belt. The geotectonic structure is in Zong Wu mountain Xinghai depression trough. Metallogenic zone belongs to ManZhanggang Indosinian metallogenic subbeh, and the metallogenic conditions are better. The rock strata exposed in the mining area are mainly on the upper Triassic ollahan formation （T3e）. Three faults are developed in the southwest. The intermediate acid vein rocks are more developed and the mineralization and alteration are common. The deposit should be a medium low temperature volcanic hydrothermal gold deposit. The prospecting marks are obvious. The result of the study is very important for the future geological exploration. The reference function is obvious, I think.