| 内蒙古二连—东乌旗地区重磁异常特征及其找矿意义 |
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| 引用本文： | 滕菲,张燕,赵更新,贺福清,邢怡.内蒙古二连—东乌旗地区重磁异常特征及其找矿意义[J].地质通报,2016,35(4):614-621. |
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| 作者姓名： | 滕菲 张燕 赵更新 贺福清 邢怡 |
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| 作者单位： | 中国地质调查局天津地质调查中心, 天津 300170 |
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| 基金项目： | 中国地质调查局项目(编号:1212011120915、1212010561510、1212010811061、1212011120330) |
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| 摘 要： | 以区域地质资料和物性资料为依据,探讨了二连—东乌旗地区1∶20万重磁异常所反映的深部构造特征及其找矿意义。在区域重磁场分区研究的基础上,分析了区内晚古生代的不同成矿环境。重磁异常解释结果显示,本区西部以北东向区域构造为主,东部转为南北向和东西向密集网格构造,成矿条件更为有利。尤其是东部东乌旗和霍林郭勒地区中酸性侵入岩体发育,矿产资源潜力巨大。1∶20万重磁异常研究从不同空间尺度为本区寻找内生金属矿产提供了重要信息,并圈定6处找矿远景区。
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| 修稿时间： | 3/7/2016 12:00:00 AM |
Gravity and magnetic anomalies features in the Erlian-Dong Ujimqin Banner area |
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| TENG Fei,ZHANG Yan,ZHAO Gengxin,HE Fuqing and XING Yi.Gravity and magnetic anomalies features in the Erlian-Dong Ujimqin Banner area[J].Geologcal Bulletin OF China,2016,35(4):614-621. |
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| Authors: | TENG Fei ZHANG Yan ZHAO Gengxin HE Fuqing and XING Yi |
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| Institution: | Tianjin Center of China Geological Survey, Tianjin 300170, China |
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| Abstract: | In this paper, the authors tried to explore regional deep-seated structures and their roles in the ore-forming process in the Erlian-Dong Ujimqin Banner area based on the result of 1:200000 gravity and magnetic data interpretation and the study of regional geological data and physical properties of rocks. Metallogenic settings of Late Paleozoic were studied based on the zonation of gravita-tional and magnetic fields in the study area. The interpretation of gravity and magnetic anomalies indicates that the NE-trending structure is predominant in the west of the area, and densely distributed reticular structures in the NE and EW directions are present in the east, which are more favorable for mineralization. The most promising areas are Dong Ujimqin Banner and Holingol in the east, where intermediate-acid rocks are well developed. The study of 1:200000 gravity and magnetic anomalies provided important information in search for endogenetic metallic deposits from different aspects in the study area, and as a result, 6 prospective zones were delineated. |
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| Keywords: | Erlian-Dong Ujimqin Banner area gravity anomalies aeromagnetic anomalies ore-prospecting significance |
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