高精度磁测在第四系浅覆盖区的应用--以山东省昌邑市德胜庄地区铁矿勘查为例

摘要

Deshengzhuang iron deposit locates in the middle of Laizhou Anqiu iron ore belt .It is a newly found weak magnetic anomalies in Quaternary shallow cover areas .According to field measurements of physical properties of rocks and minerals , magnetization differences between iron ore and rock can be known ,which will provide reliable basis for high precision magnetic geophysical survey .By using precision magnetic survey ,distribution of magnetic anomalies in this area can be identified .Combining with geolog‐ical data ,inversion of orebodies in covering areas has been carried out ,and depth ,morphology and occur‐rence of ore bodies have been circled primarily .It will provide basis for further drilling in this area .%德胜庄铁矿区地处莱州安丘铁矿成矿带中段，为新发现的第四系浅覆盖区低缓磁异常中的铁矿床。根据野外岩矿石物性测定，可知铁矿石与围岩磁化强度差异，为高精度磁测提供可靠地球物理依据。利用高精度磁测查明区内磁异常的分布特征，结合地质资料，对覆盖区矿体进行反演，初步圈定铁矿体的埋深、形态、产状，为下一步钻探工程提供依据。