沱沱河地区多才玛铅锌矿床地质特征及找矿方向

多才玛超大型铅锌矿是沱沱河地区的典型矿床代表,位于青海省西南部三江北段多金属成矿带西段。本文在分析区域构造地质背景和矿区地质调查的基础上,阐述了矿区地质特征,从矿区主要岩性及矿化特征、矿(化)体、矿石特征和围岩蚀变等方面综合分析了矿床地质特征,进而从大地构造环境、地层、构造、岩浆岩与成矿作用的关系、成矿物质来源等方面探讨了控矿因素。根据区域成矿规律、控矿地质条件及隐伏矿体的发现,证实该区具备中深部、周边及多金属的找矿潜力,显示出良好的找矿前景。

Geological Characteristics and Prospecting Directions of the Duocaima Lead-Zinc Deposit in Tuotuohe area

Duo Caima super large lead-zinc deposit is the typical ore deposit in the area of Tuotuo river, which is located in the west section of North Sanjiang metallogenic belt, southwest of Qinghai Province. Based on the analysis of the regional geological setting and geological survey in mining area, the author mainly stated the geological characteristics in mining area and analyzed the geological features of the ore deposit from theaspects of lithology, ore potentiality, mineralization, ore body characteristics, ore characteristics, and wall rock alteration. And then discussed the ore control factors are discussed covering tectonic environment, ore controls, structures, magmatic rocks, and ore-forming material source. Based on regional metallogenic regularities, ore-controlling geological conditions and the ore bodies discovered at depth discovered, it is confirmed that this area had a good prospecting of multiple at depth and on periphery.