方城县二郎庙乡Mo、W多金属异常综合评价及找矿预测

Comprehensive Evaluation and Prospecting Forecast for Abnormal Mo,W of Erlangmiao Village

二郎庙钼多金属异常区位于华北陆块南缘的陡垛庄—李仙桥花岗岩带上,为栾川成矿带的东延部分,异常区元素规模大、含量高,异常套合性较好,强度高,对该异常重点开展1∶1万地质简测和探槽工程揭露等,在异常区内新发现了7条钼矿化体(带),证明了该异常良好的找矿远景。从异常区区域成矿构造背景、李仙桥花岗岩体、物化探等方面探讨了二郎庙异常区的成矿条件,认为该异常区成矿地质条件十分优越,找矿前景巨大,建议在已取得的地质成果基础上,进一步对二郎庙钼、钨多金属异常区进行全面深入的研究,加大对异常区外围及深部的找矿投入,有望找出品位较高、规模较大、具有较大经济价值的钼矿床。

The discovery of Erlangmiao molybdenum mineralization objects is based on the geochemical prospecting anomaly. Erlangmiao molybdenum,tungsten polymetallic anomaly area lies on the Douduozhuang- Lixianqiao granite belt of the southern margin of North China block,which belongs to the extension of the east Luanchuan fault zone. 1 ∶50 000 gauge of waterways sediment suggests that the element is much bigger and higher in the anomaly area. The measured soil profile shows that there is a good and immensely strong matching in the anomaly. 1∶10 000 simplified geological mapping,mine survey and trench project in the anomaly have found seven new molybdenum mineralization objects,which means a good prospecting potential. From metallogenic tectonic background in this anomaly area,Lixianqiao granite tectonic,as well as geophysical and geochemical exploration,these conditions of Erlangmiao anomaly area are discussed in the paper. The results indicate that the ore- forming geological conditions of the abnormal area are very superior,enormous prospecting potential. Based on the obtained geological achievements,we suggest that further comprehensive studies for Erlangmiao molybdenum,tungsten polymetallic anomaly area should be conducted,and increase prospecting investment in the depth and peripheral abnormal area,to find out the molybdenum and tungsten deposit with higher grade,bigger mineralization object,and greater economic value.