山东省兰陵地区水系沉积物地球化学特征及金找矿靶区圈定

Stream sediment geochemical characteristics and gold ore-prospecting targets in Lanling area of Shandong Province

为查明沂沭断裂带西侧兰陵地区Au及其伴生元素地球化学特征,优选找矿靶区,在向城—兰陵一带开展1∶5万水系沉积物测量工作,完成面积840 km^(2),圈定单元素异常231处,综合异常9处。综合分析成矿地质条件、矿产地质调查资料以及本次水系沉积物测量结果,在综合异常AS01范围内初步圈定金矿脉1条,在综合异常AS08范围内初步圈定金矿脉2条,优选出2处找矿靶区,即增光峪—扁担山—黄山口找矿靶区、拾钱庄—晒钱埠找矿靶区。

In order to identify Au and associated elements geochemical anomalies in Lanling area on the west side of Yishu fault zone,1∶50000 stream sediment measurement was carried out in Xiangcheng-Lanling area,and 840 km^(2) was completed.Through this work,231 single element anomalies and 9 comprehensive anomalies were identified.Comprehensive analysis of metallogenic geological conditions,mineral geological survey data and stream sediment survey results,one gold vein was preliminarily delineated in the range of comprehensive anomaly AS01,and two gold veins were preliminarily delineated in the range of comprehensive anomaly AS08.Two ore-prospecting target areas were selected,namely Zengguangyu-Bindanshan-Huangshankou and Shiqianzhuang-Tanqianbu ore-prospecting target area.