基于区域重磁信息的湖南怀化地区金属成矿预测

The regional gravity and magnetic-based potential prediction of matal deposits in Huaihua district,Hunan province

根据湖南怀化地区1∶20万区域重力资料和1∶5万航磁资料,研究了怀化地区深部断裂及岩浆岩特征,圈定了隐伏-半隐伏岩体和断裂构造,并根据地质矿产和物化探综合信息,分析了成矿区带与岩体和构造的关系,总结了成矿区带的区域重磁场特征,圈出5个成矿远景区,为怀化地区寻找深部矿和隐伏矿提供了重要信息。

Based on regional data of gravity survey at scale 1：200000 and air magnetic survey at scale 1： 50000 characteristics of deep faults and magmatic rocks are summarized and the buried and semi-buried intrusive bodies and faults are delineated. Data of geology and mineral resources are combined with the ge- ophysical-geochemical data to analyze relation between the intrusive body and the fault and show charac- teristics of the gravity and magnetic field in the potential areas in the metallogenic belts and areas. The re- sults show 5 potential areas and provide important information for prospecting buried ore or blind ore bodies.