摘要
通过对南泥湖钼(钨)矿田的大地构造位置、区域地球化学背景、区域地球物理特征、岩石化学特征、中酸性小岩体性特征及典型矿床赋存特征的分析研究认为:燕山期中酸性小岩体是深部隐伏大岩基穿插于上覆盖层中的支脉,并为银铅锌多金属矿提供了直接热源、矿化剂和矿物质。区内广泛分布的富含Ag、Pb、Zn的碳酸盐岩地层是银铅锌多金属矿的矿源层,在该区形成大型、超大型热液交代型层控银铅锌多金属矿床具有必备的物质条件和构造背景,找矿前景良好。
By the analysis on the geotectonic location, the regional geochemical background, the regional geophysical characteristics, rock chemistry, the small intermediate - acid rock characteristics and the occurrence of typical deposit of the Nannihu molybdenum(tungsten)orc field,it is considered that the srnall Yanshanian intermediate - acid rocks are the branch veins of the deep buried basement ,which intruded in the capping and provided direct heat resources and ore solution for silver,lead and zinc polymetallic ores. The widespread distributed Ag,Pb,Zn rich carbonate stratum were the source beds. It is concluded that the area born the necessary preconditions and tectonic background for the formation of large to super large scale hydrothermally replaced strata - bound silver,lead and zinc polymetallic ores and prospective for further exploration.
出处
《矿产与地质》
2003年第3期198-202,共5页
Mineral Resources and Geology
基金
国土资源大调查项目(编号19991020089003)资助
关键词
银铅锌多金属矿床
成矿地质条件
地球化学省
找矿前景
河南栾川
Silver,lead ,zinc polymetallic ores
metallogeny
geochemical province
exploration prospective
Lanchuan, Henan
