云南省金平县长安金矿物化探异常特征及找矿模型

Geophysical and Geochemical Anomalies and Ore Prospecting Model for the Chang'an gold deposit in Jinping County,Yunnan Province

云南省金平县长安金矿是哀牢山金矿带南段上具有代表性的大型金矿床。在该矿区开展地质、地球物理和地球化学综合勘查工作,获取多元信息,极大地提高了找矿效率和效果。本次综合分析矿区的地球物理、地球化学异常特征,建立该矿床的物化探找矿模型,并结合地质要素建立综合找矿模式:(1)1∶25000土壤地球化学测量快速筛选区域化探异常,缩小找矿靶区;(2)1∶10000土壤地球化学测量和直流激电测量寻找矿(化)体露头及矿化蚀变带,圈定浅部硫化金矿体分布范围;(3)瞬变电磁测量探测含矿构造破碎带空间形态,圈定深部赋矿部位。

The Chang'an gold deposit in Jinping County,Yunnan Province is a representative large-scale gold deposit in the southern section of the Ailaoshan gold deposit belt.The comprehensive geological,geophysical,and geochemical exploration techniques and methods carried out in this mining area have greatly improved the efficiency of ore exploration and achieved good results.Based on the accumulated geological,geophysical,and geochemical multiple information in the mining area,this study comprehensively analyzes the geophysical and geochemical anomaly characteristics of the mining area,summarizes and establishes a geophysical and geochemical exploration model and comprehensive exploration model for the deposit,in order to provide reference and guidance for the exploration of similar gold deposits in the periphery of the mining area and similar areas.