西秦岭国安寺—白杨沟地区高精度磁测异常特征及找矿远景分析
发布时间：2019-07-04 14:48
【摘要】：研究区位于西秦岭东段的凤太矿集区内.在系统搜集和研究陕西凤太地区前人地质资料成果的基础上,结合本次1/5万地面高精度磁法测量资料,以金、铅锌矿为主要目标,整体评价研究区矿产资源潜力.研究区地面高精度磁测结果表明:该区自西向东可分为西部正磁异常区、中部平静磁异常区和东部负磁异常区,弱磁异常与区内广泛分布的沉积地层有关,"西高东低"的磁场变化特征与磁性基底的起伏形态有关.共圈定17处磁异常,磁异常按从西到东、由北往南的顺序依次进行编号,分别为M1、M2……M17,这些磁异常有的与磁性基底有关,有的属于隐伏磁性体,有的与磁黄铁矿化蚀变有关,其中磁黄铁矿化蚀变间接对寻找区内八卦庙式金矿具有指示意义.通过对全区磁异常特征的研究并结合相关地质资料,划分成矿远景区两处,为以后找矿提供思路分析,可作为寻找铅锌金-多金属矿的远景区.
文内图片：
图片说明：秦岭造山带(陕西段)构造单元划分图
[Abstract]:The study area is located in the Fengtai Mine concentration area in the eastern segment of the West Qinling Mountains. On the basis of systematically collecting and studying the previous geological data in Fengtai area of Shaanxi Province, combined with the high precision magnetic survey data of 10 / 50 000 surface, the mineral resources potential of the study area is evaluated as a whole with gold and lead-zinc deposits as the main goal. The results of high precision magnetic measurement on the ground in the study area show that the area can be divided into western positive magnetic anomaly area, central calm magnetic anomaly area and eastern negative magnetic anomaly area from west to east. The weak magnetic anomaly is related to the sedimentary strata widely distributed in the area, and the magnetic field variation characteristics of "high in the west and low in the east" are related to the fluctuation form of the magnetic basement. A total of 17 magnetic anomalies were identified, and the magnetic anomalies were numbered from west to east and from north to south, respectively, which were M1 and M2.M17. some of these magnetic anomalies were related to magnetic basement, some of them belonged to hidden magnetic bodies, and some of them were related to pyelite alteration. Through the study of the characteristics of magnetic anomalies in the whole area and combined with the relevant geological data, it is divided into two mineral scenic spots, which provides ideas for future prospecting and can be used as a scenic spot for the search for lead-zinc-gold-polymetallic deposits.
【作者单位】： 天津市地球物理勘探中心;中国五矿集团公司;西北有色地质勘查局七一七总队;天津华北地质勘查局;
【基金】：中国地质调查局“秦岭成矿带地质矿产调查”项目和地质勘查专项基金(12120113047700)资助
【分类号】：P624;P631.2
文内图片：
图片说明：秦岭造山带(陕西段)构造单元划分图
[Abstract]:The study area is located in the Fengtai Mine concentration area in the eastern segment of the West Qinling Mountains. On the basis of systematically collecting and studying the previous geological data in Fengtai area of Shaanxi Province, combined with the high precision magnetic survey data of 10 / 50 000 surface, the mineral resources potential of the study area is evaluated as a whole with gold and lead-zinc deposits as the main goal. The results of high precision magnetic measurement on the ground in the study area show that the area can be divided into western positive magnetic anomaly area, central calm magnetic anomaly area and eastern negative magnetic anomaly area from west to east. The weak magnetic anomaly is related to the sedimentary strata widely distributed in the area, and the magnetic field variation characteristics of "high in the west and low in the east" are related to the fluctuation form of the magnetic basement. A total of 17 magnetic anomalies were identified, and the magnetic anomalies were numbered from west to east and from north to south, respectively, which were M1 and M2.M17. some of these magnetic anomalies were related to magnetic basement, some of them belonged to hidden magnetic bodies, and some of them were related to pyelite alteration. Through the study of the characteristics of magnetic anomalies in the whole area and combined with the relevant geological data, it is divided into two mineral scenic spots, which provides ideas for future prospecting and can be used as a scenic spot for the search for lead-zinc-gold-polymetallic deposits.
【作者单位】： 天津市地球物理勘探中心;中国五矿集团公司;西北有色地质勘查局七一七总队;天津华北地质勘查局;
【基金】：中国地质调查局“秦岭成矿带地质矿产调查”项目和地质勘查专项基金(12120113047700)资助
【分类号】：P624;P631.2
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