安徽省百川沉积型钒矿矿床地质特征及找矿标志

Geological Characteristics and Prospecting Markers of Sedimentary Vanadium Deposit in Baichuan,Anhui Province

皖南地区位于扬子地台东南缘成矿带,属沉积型钒矿的有利成矿带,百川沉积型钒矿床为首次发现的大型沉积型钒矿床。通过对百川黑色岩系沉积型钒矿床地质特征及成矿进行研究,结果表明,该矿床成因类型为胶体化学沉积型,根据胶体化学沉积型矿床理论,得出了古地貌盆地是寻找大型沉积型钒矿的重要条件,提出了地表找矿的标志和矿体富集区域,并通过数据统计形式进行了印证,为今后在该地区寻找沉积型钒矿提供指引。

The south Anhui area is located in the southeastern margin of the Yangtze platform,which belongs to the favorable metallogenic zone of sedimentary vanadium deposit.The Baichuan sedimentary vanadium deposit is the first large-scale sedimentary vanadium deposit discovered.By studying the geological characteristics and mineralization of the sedimentary vanadium deposit in Baichuan black rock series,the results show that the genetic type of the deposit is colloidal chemical sedimentary type.According to the theory of colloidal chemical sedimentary type deposit,it is concluded that the paleogeomorphic basin is an important condition for finding large sedimentary vanadium deposits,and the surface prospecting indicators and ore body enrichment areas are put forward,which are confirmed by statistical data.It provides guidance for the future search for sedimentary vanadium deposits in this area.