NW-trending faults in Dong Ujimqin Banner area: Evidence from remote sensing,geophysical and geochemical information
LI Jianguo1,2, GAO Xuesheng2, TENG Fei2, ZHANG Surong2, TENG Xuejian2, HE Fuqing2
1. School of Earth Sciences and Resources, China University of Geosciences(Beijing), Beijing 100083, China;
2. Tianjin Center of China Geological Survey, Tianjin 300170, China
The Dong Ujimqin Banner area is located at the junction between the metallogenic belt from Erlian to Dong Ujimqin Banner and Da Khingan Mountains metallogenic belt, with complicated geological structures and mineralization conditions. The results of structural interpretation by integrated regional geological, geophysical, geochemical and remote sensing data show that there are many NW-trending faults in the area, apart from NE-NEE-trending structures. The most noticeable one is the NW-trending deep fault line along the section from Dong Ujimqin Banner to Wongtu. Discontinuous linear features are interpreted by remote sensing along this major fault line, which are the gradient variation boundaries of aeromagnetic field, gravity field and geochemical field gradient in this fault zone. This major fault obviously played a significant role in the process of Mesozoic sedimentation and mineralization in this area:to the east of fault line, there existed strong activity of Mesozoic magmatism, favorable conditions for mineralization, and potential of lead-zinc-silver, tungsten and iron; to the west of the fault line, Mesozoic magmatic activity was obviously weakened, and prospecting should be mainly targeted for copper, molybdenum and chromite. In prospecting, attention should be paid to the NE and NW trending structural intersection which is closely related to geochemical anomaly areas.
[1] 聂凤军,江思宏,张义,等.中蒙边境中东段金属矿床成矿规律和找矿方向[M].北京:地质出版社,2007:193-445. Nie F J,Jiang S H,Zhang Y,et al.Metallogenic Studies and Prospecting Orientation in Central and Eastern Segments along China-Mongolia[M].Beijing:Geological Publishing House,2007:193-445.
[2] 李述靖,张维杰,耿明山,等.蒙古弧地质构造特征及形成演化概论[M].北京:地质出版社,1998:1-145. Li S J,Zhang W J,Geng M S,et al.The Introduction of the Structure Character and Evolution of Mongolian Arc[M].Beijing:Geological Publishing House,1998:1-145.
[3] 邵济安.中朝板块北缘中段地壳演化[M].北京:北京大学出版社,1991:1-136. Shao J A.Crust Evolution in the Middle Part of the Northern Margin of Sino-Korean Plate[M].Beijing:Peking University Press,1991:1-136.
[4] 王荃,刘雪亚,李锦铁.中国华夏与安加拉古陆间的板块构造[M].北京:北京大学出版社,1991:74-101. Wang Q,Liu X Y,Li J T.Plate Tectonics Between Cathaysia and Angaraland in China[M].Beijing:Peking University Press,1991:74-101.
[5] 任纪舜,王作勋,陈炳蔚,等.从全球看中国大地构造——中国及邻区大地构造图简要说明[M]. 北京:地质出版社,1999:1-32. Ren J S,Wang Z X,Chen B W,et al.The Tectonics of China from A Global View:A Guide to the Tectonic Map of China and Adjacent Regions[M].Beijing:Geological Publishing House,1999:1-32.
[6] Nozaka T,Liu Y.Petrology of the Hegenshan ophiolite and its implication for the tectonic evolution of northern China[J].Earth and Planetary Science Letters,2002,202(1):89-104.
[7] Badarch G,Cunningham W D,Windley B F.A new terrane subdivision for Mongolia:Implications for the Phanerozoic crustal growth of Central Asia[J].Journal of Asian Earth Sciences,2002,21(1):87-110.
[8] Blight J H S,Crowley Q G,Petterson M G,et al.Granites of the southern Mongolia Carboniferous Arc:New geochronological and geochemical constraints[J].Lithos,2010,116(1/2):35-42.
[9] 邵积东.内蒙古大地构造分区及其特征[J].内蒙古地质,1998(2):1-23. Shao J D.The characteristics of tectonic area of Inner Mongolia[J].Geology of Inner Mongolia,1998(2):1-23.
[10] 陈毓川.中国主要成矿区带矿产资源远景评价[M].北京:地质出版社,1991:119-246. Chen Y C.Prospective Evaluation of Main Mineral Resources in China[M].Beijing:Geological Publishing House,1991:119-246.
[11] 刘建明,张锐,张庆洲.大兴安岭地区的区域成矿特征[J].地学前缘,2004,11(1):269-227. Liu J M,Zhang R,Zhang Q Z.The regional metallogeny of Da Hinggan Ling,China[J].Earth Science Frontiers,2004,11(1):269-227.
[12] 李蒙文.天山-兴蒙造山带中段内生金属矿床成矿系列及成矿预测[D].北京:中国地质科学院,2006. Li M W.Research on Metallogenic Series and Prognosis of Endogenetic Metallic Deposits in the Middle Section of Tianshan-Xingmeng Orogen[D].Beijing:Chinese Academy of Geological Sciences,2006.
[13] 张万益.内蒙古东乌珠穆沁旗岩浆活动与金属成矿作用[D].北京:中国地质科学院,2008. Zhang W Y.Magmatic Activity and Metallogeny of Dong Ujimqin Banner,Inner Mongolia[D].Beijing:Chinese Academy of Geological Sciences,2008.
[14] 刘洪利,陈满,陈鹏,等.大兴安岭东乌旗地区金及多金属成矿特征与找矿方向[J].黄金科学技术,2011,19(2):56-60. Liu H L,Chen M,Chen P,et al.Ore-forming characteristics and prospecting orientation of gold-polymetallic mineralization in Dongwuqi area of Daxing'anling[J].Gold Science and Technology,2011,19(2):56-60.
[15] 田继勋.内蒙古东乌旗达赛脱铅锌矿的控矿构造[J].地质找矿论丛,2005,20(s1):102-105. Tian J X.Ore-controlling structures in Dasaituo Pb-Zn camp,Dong Ujimqin Banner[J].Contributions to Geology and Mineral Resources Research,2005,20(s1):102-105.
[16] 王建平.内蒙古东乌旗铜、银多金属成矿带成矿类型分析[J].矿产与地质,2003,17(2):132-135. Wang J P.Metallogeny of Dongwu banner copper and silver poly-metallic ore zone of inner Mongolia[J].Mineral Resources and Geology,2003,17(2):132-135.
[17] 钱建平,张渊,赵小星,等.内蒙古东乌旗遥感构造和蚀变信息提取与找矿预测[J].国土资源遥感,2013,25(3):109-117.doi:10.6046/gtzyyg.2013.03.19. Qian J P,Zhang Y,Zhao X X,et al.Extraction of linear structure and alteration information based on remote sensing image and ore-prospecting prognosis for Dongwu Banner,Inner Mongolia[J].Remote Sensing for Land and Resources,2013,25(3):109-117.doi:10.6046/gtzyyg.2013.03.19.
[18] 内蒙古自治区地质矿产局.内蒙古自治区区域地质志[M].北京:地质出版社,1991:556-628. Bureau of Geology and Mineral Resources of Inner Mongolia.Regional Geology of Inner Mongolia[M].Beijing:Geological Publishing House,1991:556-628.
[19] 王守光,黄占起,苏新旭,等.一条值得重视的跨国境成矿带——南戈壁-东乌旗铜多金属成矿带[J].地学前缘,2004,11(1):249-255. Wang S G,Huang Z Q,Su X X,et al.A notable metallogenic belt striding across the border between China and Mongolia:South gobi-Dongwuqi copper-polymetallic metallogenic belt[J].Earth Science Frontiers,2004,11(1):249-255.
[20] 金岩,刘玉堂,谢玉玲.内蒙东乌旗地区岩浆活动与多金属成矿的关系[J].华南地质与矿产,2005(1):8-12. Jin Y,Liu Y T,Xie Y L.Relationship between magmatism and polymetal mineralization in Dongwuqi area,Inner Mongolia[J].Geology and Mineral Resources of South China,2005(1):8-12.
[21] 李承东,赵利刚,常青松,等.内蒙古索伦山-霍林郭勒地区基础地质综合研究成果报告[R].天津:天津地质调查中心,2013. Li C D,Zhao L G,Chang Q S,et al.The Comprehensive Research of Basic Geology in the Suolunshan-Huolinguole Area,Inner Mongolia[R].Tianjin:Tianjin Center,China Geological Survey,2013.
[22] 钟江文,彭翼.小秦岭地区遥感线性构造密集带与金矿关系分析及找矿预测[J].国土资源遥感,2014,26(2):148-153.doi:10.6046/gtzyyg.2014.02.24. Zhong J W,Peng Y.Analysis of relationship between belts of concentrated remote sensing linear structures and gold deposits as well as prospecting prognosis in Xiaoqinling region[J].Remote Sensing for Land and Resources,2014,26(2):148-153.doi:10.6046/gtzyyg.2014.02.24.
[23] 郝敏,吴虹,贾志强,等.基于断裂构造遥感影像特征对比分析的花山岩体与姑婆山岩体成因关联性探讨[J].国土资源遥感,2014,26(2):162-169.doi:10.6046/gtzyyg.2014.02.26. Hao M,Wu H,Jia Z Q,et al.Discussion on genetic correlation between Huashan granite body and Guposhan granite body based on comparative analysis of fault structure features in remote sensing image[J].Remote Sensing for Land and Resources,2014,26(2):162-169.doi:10.6046/gtzyyg.2014.02.26.
[24] 张微,姚琪,杨金中,等.龙门山断裂带晚新生代以来分段活动的地形地貌表现[J].国土资源遥感,2013,25(4):113-121.doi:10.6046/gtzyyg.2013.04.18. Zhang W,Yao Q,Yang J Z,et al.Geomorphic characteristics of segmental activities of the Longmenshan fault zone since late Cenozoic[J].Remote Sensing for Land and Resources,2013,25(4):113-121.doi:10.6046/gtzyyg.2013.04.18.
[25] 齐家喆,麦广田.地质构造地球化学特征要素及其在区域化探解释中的应用[J].物探与化探,1993,17(1):14-21. Qi J Z,Mai G T.Geochemical characteristic elements of geological structure and their application to the interpretation of regional geochemical prospecting data[J].Geophysical and Geochemical Exploration,1993,17(1):14-21.
[26] 魏柏林,黄河生,陈庞龙,等.应用化探方法研究断层活动性及发震构造[J].华南地震,1998,18(4):50-58. Wei B L,Huang H S,Chen P L,et al.A study on fault activity and statutory by geochemical prospecting[J].South China Journal of Seismology,1998,18(4):50-58.
[27] 沈前斌,赵琦,曾祥贵.区域化探深层样异常与物探重力、航磁异常及遥感解译构造的关系[J].四川地质学报,2003,23(3):176-178. Shen Q B,Zhao Q,Zeng X G.On relationship between deep anomaly in regional geochemistry and gravity and aeromagnetic anomalies and remote sensing interpreted structure[J].Acta Geologica Sichuan,2003,23(3):176-178.
[28] 兰强,赵元淏,冷福荣.内蒙古地质地球化学分区及地球化学成矿预测[J].物探与化探,2012,36(1):39-44. Lan Q,Zhao Y H,Leng F R.Geological-geochemical division and geochemical metallogenic prognosis in Inner Mongolia[J].Geophysical and Geochemical Exploration,2012,36(1):39-44.
[29] 滕学建,程银行,杨俊泉,等.内蒙古1:5万阿尔塔拉等6幅区域地质调查报告[R].天津:天津地质调查中心,2014. Teng X J,Cheng Y H,Yang J Q,et al.The Report of 1:50000 Regional Geological Survey in Aertala Area,Inner Mongolia[R].Tianjin:Tianjin Center,China Geological Survey,2014.
[30] 余学中,梁月明,丛丽娟.高精度航空物探资料在二连浩特-东乌旗地区找矿中的应用[J]. 物探与化探,2010,34(3):269-274. Yu X Z,Liang Y M,Cong L J.The application of high precision aerogeophysical data to ore-prospecting work in Erenhot-Dong Ujimqin Banner area[J].Geophysical and Geochemical Exploration,2010,34(3):269-274.
[31] 张万益,聂凤军,刘树文,等.大兴安岭南段西坡金属矿床特征及成矿规律[J].中国地质,2013,40(5):1583-1599. Zhang W Y,Nie F J,Liu S W,et al.Characteristics and metallogenic regularities of ore deposits on the western slope of the southern section of the Da Hinggan Mountains metallogenic belt[J].Geology in China,2013,40(5):1583-1599.
[32] 白令安,孙景贵,张勇,等.大兴安岭地区内生铜矿床的成因类型、成矿时代与成矿动力学背景[J].岩石学报,2012,28(2):468-482. Bai L A,Sun J G,Zhang Y,et al.Genetic type, mineralization epoch and geodynamical setting of endogenous copper deposits in the Great Xing'an Range[J].Acta Petrologica Sinica,2012,28(2):468-482.
[33] 高群学,钱明.内蒙古东乌旗阿尔哈达银铅锌矿区地质、物化探特征及其找矿意义[J].地质找矿论丛,2005,20(s1):95-99. Gao Q M,Qian M.Geological,geo-physical and geo-chemical exploration characteristics and their ore-searchwg significance in Arhada Ag-Pb-Zn camp,Dong Ujimqin Banner[J].Contributions to Geology and Mineral Resources Research,2005,20(s1):95-99.
2016, Vol. 28 
