高精度磁测在青海省阿尔茨托山地区划分地质构造中的应用

Application of High Precision Magnetic Survey in Dividing Geological Structures in Aercituo Mountain Aera in Qinghai Province

摘要:

推断地质构造是磁测资料解释的组成部分，是对基础地质资料进行综合分析的重要参考，内容包括推断构造（断裂构造、火山构造）、地层（磁性火山岩地层、磁性变质岩地层）和侵入岩等。该文以青海省阿尔茨托山地区1∶5万地面高精度磁测成果为例进行分析，对区内的地质构造及岩浆岩分布等形成了一定认识，推断断裂构造17条并划分了区内火山岩地层、侵入岩体的分布范围，进一步完善了区域地质构造格架。

Abstract:

Inferring geological structures is an important part of magnetic data interpretation. It is also an important reference for comprehensive analysis of basic geological information. Its contents include deducing structures, strata and intrusive rocks. In this paper, taking high precision magnetic survey result in Aercituo moutain in Qinghai province with the scale of 1∶50000 as an example, geological structures and distribution of magmetic rock have been introduced. 17 faults have been identified, and distribution scope of magmatic rocks and intrusive rocks have been divided. It has perfected regional geological structure framework furthurly.