吉林大学学报(地球科学版) ›› 2018, Vol. 48 ›› Issue (2): 461-473.doi: 10.13278/j.cnki.jjuese.20170273
朱晓颖, 杨海, 匡星涛, 彭巍巍, 张洪瑞
Zhu Xiaoying, Yang Hai, Kuang Xingtao, Peng Weiwei, Zhang Hongrui
摘要: 本文根据最新的航磁资料,将东昆仑-阿尔金山地区按照不同的磁异常面貌特征进行了分区描述,其总体展布以北东和近东西向为主,磁异常具有明显的分区、分带性。同时辅以卫星重力资料,通过解析延拓、任意水平方向导数计算等处理,得到大量与断裂相关的地球物理场信息,并结合地质资料综合分析,揭示了研究区内断裂构造尤其是深大断裂在磁场上的特征。这些特征主要以不同磁场分界线、磁异常梯度带和串珠状异常等形式呈现,明显的表现为磁场分区、分带的界线。在此基础上,根据航磁资料解释和实际应用结果对深大断裂与成矿的关系进行了探讨。本文实例揭示已知的中小型矿床多位于深大断裂附近。
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