西藏塔尔玛地区地质地球化学条件与找矿潜力

Geological and Geochemical Characteristics and Prospecting Potential in Tarmar,Tibet

西藏塔尔玛地区位于班公湖-怒江缝合带与雅鲁藏布江缝合带之间的冈底斯-念青唐古拉板块中段东部,成矿地质条件优越。塔尔玛地区开展的1:5万水系沉积物地球化学调查显示,水系沉积物中Pb、Zn、As、Cu、Ni异常值较高,主要分布于调查区北部,呈近东西向分布。此次工作已发现已发现铜矿化点3个,铜金矿化点1个,铅锌矿化点2个,显示该区找矿潜力巨大。

Tarmar lies in the east central section of the Gangdis^-Nyainq6ntanglha plate between the Bangong-Nujiang suture zone and the Yarlung Zangbo suture zone with excellent conditions for mineralization. 1：50 000 stream sediment geochemical survey reveals strong Pb, Zn, As, Cu and Ni anomalies with high gradient and intensity in the north Of the studied area. 3 Cu ore spbts, 1 Cu-Au ore spot and 2 Pb-zn ore spots have been found out whfch shows great prospecting potential.