摘要
铅锌元素主要可能来自下伏地层、赋矿地层本身,硫可能来自地层硫酸盐,加里东、燕山运动可提供成矿动力,各种构造裂隙和高孔隙度的碳酸盐岩可成为导矿、配矿构造或容矿空间,化探显示有明显的铅锌异常带,本区的几个矿点与黔东—湘西成矿带内铅锌矿的各种特征很相似。因此推断渝东南铅锌成矿可能性较大。
This paper deals with Pb- Zn ore potentiality in southeast Chongqing. Pb and Zn may be derived from the underlying strata, host rock and overlying strata, and sulfur from sulfate in the strata. Ore - forming dynamic was provided by Caledonian and Yenshanian movements. Tectonic fissures and pore in the carbonate rock played the part of ore fluid channd and host space. There are intensive Pb- Zn geochemical anomalies. Geochemical features of some Pb - Zn ore occurrences are similar to those of Pb - Zn deposits in the east Guizhou- west Hunan Pb - Zn Ore belt. Therefore, some Pb - Zn deposits may be found in this region.
出处
《四川地质学报》
2007年第1期18-21,共4页
Acta Geologica Sichuan
关键词
成矿物质来源
成矿构造
化探异常带
MVT型矿床对比
渝东南
ore material source
ore- forming structure
geochemical anomaly
MVT type deposit
southeast Chongqing
