内蒙古正镶白旗环形构造成因及其找矿意义
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摘要
环形构造作为一种指示信息对找矿具有非常重要的意义和价值。借助卫星遥感影像和物化探异常等对正镶白旗环形构造及其找矿信息进行了深入探讨。正镶白旗环形构造最大环H5直径约30 km,边部发育有不同方向的区域断裂。矿产分布在断裂交汇处,并与火山机构和岩浆岩侵入有关。对其成因分析表明,正镶白旗环形构造是晚二叠世以来深部岩浆作用与区域断裂共同作用的结果,由侵入岩及其与围岩接触蚀变引起的。小环形构造是良好的成矿部位,大环形构造的边缘地区是找矿的远景地带。
The ring structure as an indicator has great significance and value for prospecting. On the base of satellite remote sensing images and geophysical and geochemical anomalies,the annular configuration and prospecting information in Zhengxiangbaiqi are analyzed in depth. The biggest circular H5 is about 30 km in diameter. Edge regional faults have different directions. Mineral resource is located in fracture interchange,which is also related to volcanic and magmatic intrusion.Regional geological survey( 1 ∶50000) shows that Zhengxiangbaiqi ring structure is the result of Late Permian magmatism and its deep regional faults joint action,and caused by contact alteration of the intrusive rocks and wall rock. Small ring structure is a good metallogenic area,and the edge area of large ring structure is a prospective area of ore prospecting.
The ring structure as an indicator has great significance and value for prospecting. On the base of satellite remote sensing images and geophysical and geochemical anomalies,the annular configuration and prospecting information in Zhengxiangbaiqi are analyzed in depth. The biggest circular H5 is about 30 km in diameter. Edge regional faults have different directions. Mineral resource is located in fracture interchange,which is also related to volcanic and magmatic intrusion.Regional geological survey( 1 ∶50000) shows that Zhengxiangbaiqi ring structure is the result of Late Permian magmatism and its deep regional faults joint action,and caused by contact alteration of the intrusive rocks and wall rock. Small ring structure is a good metallogenic area,and the edge area of large ring structure is a prospective area of ore prospecting.
引文
[1]秦小光,赵不亿,李甫安.环形构造成矿预测定量分析—以桂西北地区金矿预测为例[J].国土资源遥感,1993(2):54-60.
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[6]雷国伟,杨旭生,汪正涌,等.内蒙古有色金属重要矿床-成矿特征、多源地质信息找矿模式及应用[M].北京:科学出版社,2012:272-275.
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[10]成永生,陈松岭.基于遥感解译的环形构造研究及其找矿意义[J].矿业研究与开发,2007,27(3):53-55.
[11]隋志龙,李德威,黄春霞.断裂构造的遥感研究方法综述[J].地理学与国土研究,2002,18(3):34-44.
[12]廖崇高,杨武年,徐凌,等.成矿预测中遥感与地质异常的综合分析-以兰坪盆地为例[J].地质找矿论丛,2003,18(1):66-70.
[13]金文强,高光明,肖娟.遥感构造解译在秘鲁北部Chiclayo地区成矿预测中的应用[J].地质找矿论丛,2010,25(4):362-371.
[14]杜坚,吴文堂.某铅锌矿床地质特征及深部找矿预测[J].矿产保护与利用,2015(4):12-16
[2]内蒙古自治区地质矿产局.内蒙古自治区岩石地层[M].武汉:中国地质大学出版社,1996.
[3]邵积东,王惠,张梅,等.内蒙古大地构造单元划分及其地质特征[J].西部资源,2011(2):51-56.
[4]刘应冬,李廷学,陈良,等.青海仓家峡地区高精度磁测特征及找矿前景[J].矿产保护与利用,2015(2):13-17.
[5]白志达,顾德林,徐德斌,等.内蒙古多伦环形影像的成因探讨[J].中国地质,2003,30(3):261-267.
[6]雷国伟,杨旭生,汪正涌,等.内蒙古有色金属重要矿床-成矿特征、多源地质信息找矿模式及应用[M].北京:科学出版社,2012:272-275.
[7]王志刚,郭子祺,马超飞.多覆盖地区花岗岩接触带及其控矿特征的遥感研究[J].国土资源遥感,1998(2):41-45.
[8]王青华.遥感技术在湖北黄石市太子庙地区地质找矿中的应用[J].北京地质,1997,26(3):17-26.
[9]唐从国,聂启祥,刘丛强,等.云南个旧矿区卡房矿田遥感地质综合信息成矿预测[J].矿物学报,2004,24(2):164-170.
[10]成永生,陈松岭.基于遥感解译的环形构造研究及其找矿意义[J].矿业研究与开发,2007,27(3):53-55.
[11]隋志龙,李德威,黄春霞.断裂构造的遥感研究方法综述[J].地理学与国土研究,2002,18(3):34-44.
[12]廖崇高,杨武年,徐凌,等.成矿预测中遥感与地质异常的综合分析-以兰坪盆地为例[J].地质找矿论丛,2003,18(1):66-70.
[13]金文强,高光明,肖娟.遥感构造解译在秘鲁北部Chiclayo地区成矿预测中的应用[J].地质找矿论丛,2010,25(4):362-371.
[14]杜坚,吴文堂.某铅锌矿床地质特征及深部找矿预测[J].矿产保护与利用,2015(4):12-16