辽西南部火山热液型金、铜多金属矿床产出特征及成矿远景预测

Occurrence Characteristics and Metallogenic Prospect Prediction of Volcanic Hydrothermal Gold and Copper Polymetallic Deposits in the South of Western Liaoning

辽西南部火山热液型金及多金属矿受小孤山—老虎洞北东向断裂构造控制,早在二十世纪五六十年代就进行过地质找矿工作,该构造带南部矿产以Au、Cu为主,北部以Au多金属矿为主。北部的金及多金属矿一经发现就被开发利用,南部的Au、Cu由于品位偏低,按照当时的工业指标圈不出工业矿体,直到近些年随着Au、Cu价格的大幅提升才被开发利用,本文旨在通过对该成矿带矿床特征的研究,探讨该类型矿床成因,进行成矿远景预测,以利指导该类型矿床进一步找矿工作。

The volcanic hydrothermal gold and copper polymetallic deposits in the southern part of western Liaoning Province are controlled by the Xiaogushan-Laohudong northeast trending fault structure.Geological prospecting work has been carried out as early as the 1950s and 1960s.The minerals in the southern part of this tectonic belt are mainly dominated by Au and Cu,and the northern part is mainly Au polymetallic deposits.The Au and polymetallic ore deposits in the north were developed and utilized as soon as they were discovered,while the Au and Cu deposits in the south could not be developed and utilized according to the industrial indexes at that time due to their low grade,until the prices of Au and Cu increased significantly in recent years.This paper aims to explore the genesis of this type of deposit and make metallogenic prospect prediction by studying the characteristics of the ore deposits in this metallogenic belt,thus guide the further prospecting work of this type of deposits.