内蒙古得耳布尔北部地区航磁反映的断裂构造和岩性特征

根据新完成的内蒙古得耳布尔北部地区1:5万高精度航磁勘查结果,对得耳布干成矿带北段的断裂构造和岩性进行了较详细的划分,增加或修改了大量的地质内容,并对新推断的断裂构造和圈定的各种岩性进行了分析解释,获得了大量的新认识,并提出岩浆岩、蚀变岩及变质岩与金、银、铜、铅、锌多金属矿产关系密切,同时,也表明了通过高精度航磁详查所获得的得耳布尔北部地区最新航磁资料用于圈定断裂构造、火成岩体、蚀变带等具有很好的效果。

FAULT STRUCTURES AND LITHOLOGIC CHARACTERS REFLECTED BY AEROMAGNETIC SURVEY IN NORTHERN DERBUR,INNER MONGOLIA

Based on the results of the newly-completed 1:50 000 high-precision aeromagnetic survey in northern Derbur of Inner Mongolia, the authors made a relatively detailed division of fault structures and lithologic characters in the northern part of the Derbur metallogenic belt, added or revised lots of geological data, and conducted an analysis and interpretation of newly-inferred fault structures and newly-delineated lithologic units, thus obtaining much new knowledge. It is pointed out that there exist close relationships between magmatic, altered and metamorphic rocks and Au, Ag, Cu, Pb and Zn polymetallic deposits, and that the newest aeromagnetic data obtained from the high-precision aeromagnetic detailed investigation in northern Derbur seem to be very useful in the delineation of fault structures, intrusive bodies and altered zones.