临潭县口子下地区锑矿床地质、地球化学特征

GEOLOGICAL AND GEOCHEMICAL FEATURES OF KOUZIXIA ANTIMONY DEPOSIT IN LINTAN COUNTY

文章通过分析区域地质背景、简述锑矿地质特征,总结了口子下地区锑矿成矿地球化学特征,指出矿床赋存于中三叠统第三岩性段钙质砂岩、砂质板岩、粉砂岩中,矿体受地层、构造、热液蚀变控制明显,具有西秦岭区典型的低温热液成矿特征,锑土壤异常受近EW向及NW向构造复合部位控制,是勘查找矿的直接标志。

By analyzing the regional geology and the geological features of antimony deposit in Kouzixia area of Lintan County, the antimony mineralization in this area has been summarized. It is pointed out that the antimony exist within calcareous sandstone, sandy slate and siltstone in the third lithologic member of Middle Triassic Series, the ore body is obviously controlled by lithostrata, structures and hydrothermal alteration, with the resemble features to which the typical hydrothermal mineralization of low temperature in west Qinling has. The antimony soil anomalies are under control of the composite area between nearly EW-striking and NW-striking structures, and it is direct indicators for prospecting.