云南省景谷帕断山矿区土壤地球化学测量效果及找矿前景

摘要

帕断山矿区位于兰坪-思茅中生代断陷盆地的普洱中轴断裂带上,成矿环境极为有利.通过对该区开展1∶2.5万土壤地球化学测量,分析元素地球化学特征及地质背景,圈定了12个综合异常,并将其划分为6个综合异常带.在Ⅰ号综合异常带的AP6综合异常处发现并圈定了4条铜矿体、1条低品位金矿体,取得了很好的找矿效果.结合成矿地质条件分析,认为该区找矿前景很好,是寻找热液充填交代型金、铜矿的有利地区,对该区继续开展工作,有望获得突破性找矿进展.%Located in the Pu'er longitudinal axial fracture belt of Lanping-Simao Mesozoic rift basin, the Paduanshan mining area possesses extremely favorable mineralization environment.Based on 1∶25 000 geochemical soil survey and an analysis of the geochemical characteristics of the elements and geological background of the area, the authors delineated 12 comprehensive anomaly areas and divided them into six integrated anomaly zones.At the AP6 comprehensive anomaly area which belongs to No.Ⅰintegrated anomaly zone, four copper orebodies and one low-grade gold orebody were discovered, and the prospecting program obtained promising result and good effect.In combination with an analysis of metallogenic geological conditions, it is reasonably believed that the Paduanshan mining area has excellent prospecting potential and is extremely favorable in search for epithermal filling metasomatic gold and copper deposits.If prospecting work is continued in this area, it is expected to get breakthrough soon.