内蒙古温都尔各脱铅锌矿矿床地质特征及综合找矿模型
|
摘要
内蒙古温都尔各脱铅锌矿地处沙麦钨成矿带西南端,奥由特铜成矿带北东部,为近几年新发现的矿床,前人研究较少涉及。为深入研究矿区成矿规律,根据区内最新找矿成果,对区内成矿地质背景、地球化学特征、地球物理特征及矿床地质特征进行了综合分析。研究表明:①铅锌矿体在空间上主要受NE向和NW向断裂构造控制,断裂构造为矿液运移、存储提供了必要的通道及场所;②矿体赋存于燕山期二长花岗岩中,二长花岗岩为矿体形成提供了必要的热源及物源;③矿石主要呈鳞片状、粒状变晶结构,细脉状—星散浸染状构造,块状构造,闪锌矿呈不均匀星散浸染状分布;④矿体多呈带状、少数呈透镜状产出,有分支复合及膨大收缩现象出现;⑤区内铅锌矿是由地下热水经溶解、置换、萃取形成含矿热液,随后期岩浆活动进一步活化、迁移、富集,在合适的位置沉淀成矿,该区铅锌矿属于岩浆热液型铅锌矿。在上述分析的基础上,总结出了地质构造、岩浆活动、围岩蚀变、地球化学异常、极化率异常为区内有利的找矿标志,构建了综合找矿模型,并圈定了5处找矿靶区。其中,B_1、B_2、B_4、B_5靶区均分布于F_1构造带上,首尾相连,成矿地质背景基本一致,实际上属于一个较大规模的靶区,靶区内构造蚀变带全长约6.2 km,已圈出的4条矿体平均真厚度为3.16 m,向下延伸200 m以上,Zn平均品位为1.03%,反映出靶区成矿潜力均较好,值得进一步开展找矿工作。
Wenduergetuo lead-zinc deposit in Inner Mongolia is located in the southwest part of Shamai tungsten metallogenic belt and the northeast part of the Oyute copper metallogenic belt.It is a newly discovered deposit in recent years which has been rarely involved.In order to deeply study the metallogenic regularity of the mining area,based on the newly prospecting results in this area,the metallogenic geological background,geochemical characteristics,geophysical characteristics and geological characteristics of deposits are studied.The results show that:①the lead-zinc orebodies are mainly controlled by the NE-trending and NW-trending fault structures in space,and the necessary channels for the movement and storage for mineral fluids are provided;②The orebodies are hosted Yanshanian adamellite,the adamellite provides the necessary thermal source and material for the formation of orebodies;③the ore is mainly in the form of scaly granular blastic texture,fine vein-star scattered disseminated structure and block structure,the distribution of sphalerite is characterized in a heterogeneous scattered pattern;④the orebodies are mostly distributed with banded shape,and a few are lenticular shape,with the phenomenons of branching and expansion and shrinkage;⑤the lead-zinc orebodies in this area is formed by the dissolution,replacement and extraction of underground hot water to form ore-bearing hydrothermal fluid,the ore-bearing hydrothermal fluid is further activated,removed and enriched by the later magmatic activity,and precipitates into ore at a suitable location.the lead-zinc deposit in this area belongs to the magmatic hydrothermal lead-zinc deposit.Based on the above discussion results,the favorable prospecting indicators are summarized,they are geological structures,magmatic activities,surrounding rock alteration,geochemical anomalies and polarizabilities anomalies,a integrated prospecting model for this area is established and five prospecting target areas are delineated.The B_1,B_2,B_4 and B_5 prospecting target areas are distributed on the F_1 structural belt,which are connected end to end.The metallogenic geological background of the four areas are basically consistent with each other,and they are actually belongs a target area with large scale.The total length of the structural alteration zone in this target area is about 6.2 km,the average thickness of the four orebodies that have been circled is 3.16 m,extending more than 200 m downward,and the average content of zinc is 1.03%.The prospecting results further indicated that the metallogenic potential in the prospecting target areas is good,and they are worth conducting further prospecting work.
Wenduergetuo lead-zinc deposit in Inner Mongolia is located in the southwest part of Shamai tungsten metallogenic belt and the northeast part of the Oyute copper metallogenic belt.It is a newly discovered deposit in recent years which has been rarely involved.In order to deeply study the metallogenic regularity of the mining area,based on the newly prospecting results in this area,the metallogenic geological background,geochemical characteristics,geophysical characteristics and geological characteristics of deposits are studied.The results show that:①the lead-zinc orebodies are mainly controlled by the NE-trending and NW-trending fault structures in space,and the necessary channels for the movement and storage for mineral fluids are provided;②The orebodies are hosted Yanshanian adamellite,the adamellite provides the necessary thermal source and material for the formation of orebodies;③the ore is mainly in the form of scaly granular blastic texture,fine vein-star scattered disseminated structure and block structure,the distribution of sphalerite is characterized in a heterogeneous scattered pattern;④the orebodies are mostly distributed with banded shape,and a few are lenticular shape,with the phenomenons of branching and expansion and shrinkage;⑤the lead-zinc orebodies in this area is formed by the dissolution,replacement and extraction of underground hot water to form ore-bearing hydrothermal fluid,the ore-bearing hydrothermal fluid is further activated,removed and enriched by the later magmatic activity,and precipitates into ore at a suitable location.the lead-zinc deposit in this area belongs to the magmatic hydrothermal lead-zinc deposit.Based on the above discussion results,the favorable prospecting indicators are summarized,they are geological structures,magmatic activities,surrounding rock alteration,geochemical anomalies and polarizabilities anomalies,a integrated prospecting model for this area is established and five prospecting target areas are delineated.The B_1,B_2,B_4 and B_5 prospecting target areas are distributed on the F_1 structural belt,which are connected end to end.The metallogenic geological background of the four areas are basically consistent with each other,and they are actually belongs a target area with large scale.The total length of the structural alteration zone in this target area is about 6.2 km,the average thickness of the four orebodies that have been circled is 3.16 m,extending more than 200 m downward,and the average content of zinc is 1.03%.The prospecting results further indicated that the metallogenic potential in the prospecting target areas is good,and they are worth conducting further prospecting work.
引文
[1]邵积东,王守光,赵文涛,等.大兴安岭地区成矿地质特征及找矿前景分析[J].地质与资源,2007,16(4):252-262.Shao Jidong,Wang Shouguang,Zhao Wentao,et al.Geological characteristic and prospecting potential in Daxinganling Region[J]Geology and Resources,2007,16(4):252-262.
[2]卢守卿,杜建福,代万庆,等.内蒙古小东沟锌多金属矿成矿规律及找矿方向[J].现代矿业,2011(5):47-50.Lu Shouqing,Du Jianfu,Dai Wanqing,et al.Metallogenic rule and prospecting direction of zinc polymetallic ore in Xiaodonggou,Inner Mongolia[J].Modern Mining,2011(5):47-50.
[3]贾盼盼,魏俊浩,巩庆伟,等.大兴安岭地区铜钼矿床成矿区带背景及找矿前景分析[J].地质与勘探,2011,47(2):151-162.Ja Panpan,Wei Junhao,Gong Qingwei,et al.Analysis of geological background and ore-searching prospect for the copper-molybdenum deposits in the Dahinganling Area[J].Geology and Exploration,2011,47(2):151-162.
[4]赵一鸣,张德全,徐志刚.大兴安岭及其邻区铜多金属矿床成矿规律与远景评价[M].北京:地震出版社,1997.Zhao Yiming,Zhang Dequan,Xu Zhigang.Metallogenic Regularity and Prospect Evaluation of Copper Polymetallic Deposits in Xinganling and Its Adjacent Areas[M].Beijing:Seismological Press,1997.
[5]贺瑾瑞,郭丽,郝春燕,等.内蒙古东乌珠穆沁旗查干哈达音亨嘎高温型强过铝质花岗岩年代学、地球化学特征及其地质意义[J].地质通报,2018(6):1050-1060.He Jinrui,Guo Li,Hao Chunyan,et al.Geochronology and geochemical characteristics of the Chaganhaday in Hengga strongly peraluminous granites in East Ujimqin Banner of Inner Mongolia and their geological significance[J].Geological Bulletin of China,2018(6):1050-1060.
[6]李俊建,付超,唐文龙,等.内蒙古东乌旗沙麦钨矿床的成矿时代[J].地质通报,2016,35(4):524-530.Li Junjian,Fu Chao,Tang Wenlong,et al.The metallogenic age of the Shamai wolframite deposit in Dong Ujimqin Banner,Inner Mongolia[J].Geological Bulletin of China,2016,35(4):524-530.
[7]李俊建,赵泽霖,党智财,等.内蒙古东乌旗奥尤特铜矿床的成矿时代[J].地质通报,2016,35(4):537-541.Li Junjian,Zhao Zelin,Dang Zhicai,et al.Metallogenic epoch of the Aoyoute copper deposit in Dong Ujimqin Banner,Inner Mongolia[J].Geological Bulletin of China,2016,35(4):537-541.
[8]卢贺.内蒙古吉林宝力格银矿床地质特征及找矿远景分析[J].新疆有色金属,2014(2):10-13.Lu He.Geological characteristics and prospecting prospect of Jilinbaolige silver deposit,Inner Mongolia[J].Xinjiang Nonferrous Metals,2014(2):10-13.
[9]卢守卿,杜建福,代万庆,等.查干敖包铁锌矿床成矿模式及成因机理[J].现代矿业,2011(6):54-56.Lu Shouqing,Du Jianfu,Dai Wanqing,et al.Metallogenic model and genetic mechanism of Chaganaobo iron and zinc deposit[J].Modern Mining,2011(6):54-56.
[10]李文国,李庆富,姜万德,等.内蒙古自治区岩石地层[M].武汉:中国地质大学出版社,1996.Li Wenguo,Li Qingfu,Jiang Wande,et al.Rock Strata of Inner Mongolia Autonomous Region[M].Wuhan:China University of Geosciences Press,1996.
[11]李锡荣,伦志强,周耀礼,等.内蒙古自治区区域地质志[M].北京:地质出版社,1991.Li Xirong,Lun Zhiqiang,Zhou Yaoli,et al.Regional Geology of Inner Mongolia Autonomous Region[M].Beijing:Geological Publishing House,1991.
[12]聂凤军,张万益,杜安道,等.内蒙古朝不楞矽卡岩型铁多金属矿床辉钼矿铼-锇同位素年龄及地质意义[J].地球学报,2007,28(4):315-323.Nie Fengjun,Zhang Wanyi,Du Andao,et al.Re-Os isotopic age dating of molybdenite separates from the Chaobuleng skarn ironpolymetallic deposit,Dong Ujimqin Banner,Inner Mongolia[J].Acta Geoscientica Sinica,2007,28(4):315-323.
[13]贺宏云,鞠文信,宝音乌力吉,等.内蒙古北部乌日尼图地区阿仁绍布辉长岩体的形成时代、地球化学特征及成因[J].沉积与特提斯地质,2011,31(4):70-78.He Hongyun,Ju Wenxin,Baoyinwuliji,et al.Age dating,geochemistry and petrogenesis of the Arenshaobu gabbro masses in the Wurinitu Region,Northern Inner Mongolia[J].Sedimentary and Tethyan Geology,2011,31(4):70-78.
[14]巩庆伟,张星,李进喜,等.内蒙古自治区东乌珠穆沁旗温都尔各脱铅锌矿普查报告[R].郑州:河南省地质矿产勘查开发局第一地质勘查院,2018.Gong Qingwei,Zhang Xing,Li Jinxi,et al,The census report of Wenduergetuo lead-zinc deposits,Dong Ujimqin Banner,Inner Mongolia[R].Zhengzhou:The No.1 Geological Exploration Institute of Geology and Minerals Investigation Bureau of Henan Province,2018.
[15]夏学惠,赵玉海,袁家忠,等.内蒙古林西-天山地区多金属硫化物矿床地质及成矿规律[J].化工矿产地质,2002(4):198-206.Xia Xuehui,Zhao Yuhai,Yuan Jiazhong,et al.Geological and metallogenic rules of polymetallic sulfide deposits in Linxi-Tianshan Area,Inner Mongolia[J].Geology of Chemical Minerals,2002(4):198-206.
[16]赵一鸣,吴良士.中国主要金属矿床成矿规律[M].北京:地质出版社,2002.Zhao Yiming,Wu Liangshi.Metallogenic Regularity of Major Metal Deposits in China[M].Beijing:Geological Publishing House,2002.
[17]翟裕生,王建平,邓军,等.成矿系统分析与矿化网络研究[J]矿床地质,2002(2):106-112.Zhai Yusheng,Wang Jianping,Deng Jun,et al.Metallogenic system and mineralization network[J].Mineral Deposits,2002(2):106-112.
[18]裴中朝,崔来运,任建德,等.东谷水-歪脑地区铜铅锌矿床成矿地质条件及综合找矿模型[J].金属矿山,2016(9):144-150.Pei Zhongchao,Cui Laiyun,Ren Jiande,et al.Metallogenic geological condition and integrated prospecting model of the Cu-Pb-Zn deposit in the East Valley Water-Wainao Area[J].Metal Mine,2016(9):144-150.
[19]叶天竺,张智勇,肖庆辉,等.成矿地质背景研究技术要求[M].北京:地质出版社,2010.Ye Tianzhu,Zhang Zhiyong,Xiao Qinghui,et al.Geological Background Research and Technical requirements[M].Beijing:Geological Publishing House,2010.
[20]叶天竺.固体矿产预测评价方法技术[M].北京:中国大地出版社,2004.Ye Tianzhu.Technology of Predietion and Evluation of Solid Mineral Resources[M].Beijing:China Land Press,2004.
[21]翟裕生,彭润民,邓军,等.成矿系统分析与新类型矿床预测[J].地学前缘,2000(1):123-132.Zhai Yusheng,Peng Runmin,Deng Jun,et al.Metallogenic system analysis and new-type ore deposits forecas[tJ].Earth Science Frontiers,2000(1):123-132.
[22]裴中朝,杨红,李琛,等.河南省卢氏县张家村铁矿矿床地质特征及找矿前景[J].金属矿山,2018(7):139-146.Pei Zhongchao,Yang Hong,Li Chen,et al.Deposit geological characteristics and prospecting potential of Zhangjiacun Iron Mine in Lushi County,Henan Province[J].Metal Mine,2018(7):139-146.
[2]卢守卿,杜建福,代万庆,等.内蒙古小东沟锌多金属矿成矿规律及找矿方向[J].现代矿业,2011(5):47-50.Lu Shouqing,Du Jianfu,Dai Wanqing,et al.Metallogenic rule and prospecting direction of zinc polymetallic ore in Xiaodonggou,Inner Mongolia[J].Modern Mining,2011(5):47-50.
[3]贾盼盼,魏俊浩,巩庆伟,等.大兴安岭地区铜钼矿床成矿区带背景及找矿前景分析[J].地质与勘探,2011,47(2):151-162.Ja Panpan,Wei Junhao,Gong Qingwei,et al.Analysis of geological background and ore-searching prospect for the copper-molybdenum deposits in the Dahinganling Area[J].Geology and Exploration,2011,47(2):151-162.
[4]赵一鸣,张德全,徐志刚.大兴安岭及其邻区铜多金属矿床成矿规律与远景评价[M].北京:地震出版社,1997.Zhao Yiming,Zhang Dequan,Xu Zhigang.Metallogenic Regularity and Prospect Evaluation of Copper Polymetallic Deposits in Xinganling and Its Adjacent Areas[M].Beijing:Seismological Press,1997.
[5]贺瑾瑞,郭丽,郝春燕,等.内蒙古东乌珠穆沁旗查干哈达音亨嘎高温型强过铝质花岗岩年代学、地球化学特征及其地质意义[J].地质通报,2018(6):1050-1060.He Jinrui,Guo Li,Hao Chunyan,et al.Geochronology and geochemical characteristics of the Chaganhaday in Hengga strongly peraluminous granites in East Ujimqin Banner of Inner Mongolia and their geological significance[J].Geological Bulletin of China,2018(6):1050-1060.
[6]李俊建,付超,唐文龙,等.内蒙古东乌旗沙麦钨矿床的成矿时代[J].地质通报,2016,35(4):524-530.Li Junjian,Fu Chao,Tang Wenlong,et al.The metallogenic age of the Shamai wolframite deposit in Dong Ujimqin Banner,Inner Mongolia[J].Geological Bulletin of China,2016,35(4):524-530.
[7]李俊建,赵泽霖,党智财,等.内蒙古东乌旗奥尤特铜矿床的成矿时代[J].地质通报,2016,35(4):537-541.Li Junjian,Zhao Zelin,Dang Zhicai,et al.Metallogenic epoch of the Aoyoute copper deposit in Dong Ujimqin Banner,Inner Mongolia[J].Geological Bulletin of China,2016,35(4):537-541.
[8]卢贺.内蒙古吉林宝力格银矿床地质特征及找矿远景分析[J].新疆有色金属,2014(2):10-13.Lu He.Geological characteristics and prospecting prospect of Jilinbaolige silver deposit,Inner Mongolia[J].Xinjiang Nonferrous Metals,2014(2):10-13.
[9]卢守卿,杜建福,代万庆,等.查干敖包铁锌矿床成矿模式及成因机理[J].现代矿业,2011(6):54-56.Lu Shouqing,Du Jianfu,Dai Wanqing,et al.Metallogenic model and genetic mechanism of Chaganaobo iron and zinc deposit[J].Modern Mining,2011(6):54-56.
[10]李文国,李庆富,姜万德,等.内蒙古自治区岩石地层[M].武汉:中国地质大学出版社,1996.Li Wenguo,Li Qingfu,Jiang Wande,et al.Rock Strata of Inner Mongolia Autonomous Region[M].Wuhan:China University of Geosciences Press,1996.
[11]李锡荣,伦志强,周耀礼,等.内蒙古自治区区域地质志[M].北京:地质出版社,1991.Li Xirong,Lun Zhiqiang,Zhou Yaoli,et al.Regional Geology of Inner Mongolia Autonomous Region[M].Beijing:Geological Publishing House,1991.
[12]聂凤军,张万益,杜安道,等.内蒙古朝不楞矽卡岩型铁多金属矿床辉钼矿铼-锇同位素年龄及地质意义[J].地球学报,2007,28(4):315-323.Nie Fengjun,Zhang Wanyi,Du Andao,et al.Re-Os isotopic age dating of molybdenite separates from the Chaobuleng skarn ironpolymetallic deposit,Dong Ujimqin Banner,Inner Mongolia[J].Acta Geoscientica Sinica,2007,28(4):315-323.
[13]贺宏云,鞠文信,宝音乌力吉,等.内蒙古北部乌日尼图地区阿仁绍布辉长岩体的形成时代、地球化学特征及成因[J].沉积与特提斯地质,2011,31(4):70-78.He Hongyun,Ju Wenxin,Baoyinwuliji,et al.Age dating,geochemistry and petrogenesis of the Arenshaobu gabbro masses in the Wurinitu Region,Northern Inner Mongolia[J].Sedimentary and Tethyan Geology,2011,31(4):70-78.
[14]巩庆伟,张星,李进喜,等.内蒙古自治区东乌珠穆沁旗温都尔各脱铅锌矿普查报告[R].郑州:河南省地质矿产勘查开发局第一地质勘查院,2018.Gong Qingwei,Zhang Xing,Li Jinxi,et al,The census report of Wenduergetuo lead-zinc deposits,Dong Ujimqin Banner,Inner Mongolia[R].Zhengzhou:The No.1 Geological Exploration Institute of Geology and Minerals Investigation Bureau of Henan Province,2018.
[15]夏学惠,赵玉海,袁家忠,等.内蒙古林西-天山地区多金属硫化物矿床地质及成矿规律[J].化工矿产地质,2002(4):198-206.Xia Xuehui,Zhao Yuhai,Yuan Jiazhong,et al.Geological and metallogenic rules of polymetallic sulfide deposits in Linxi-Tianshan Area,Inner Mongolia[J].Geology of Chemical Minerals,2002(4):198-206.
[16]赵一鸣,吴良士.中国主要金属矿床成矿规律[M].北京:地质出版社,2002.Zhao Yiming,Wu Liangshi.Metallogenic Regularity of Major Metal Deposits in China[M].Beijing:Geological Publishing House,2002.
[17]翟裕生,王建平,邓军,等.成矿系统分析与矿化网络研究[J]矿床地质,2002(2):106-112.Zhai Yusheng,Wang Jianping,Deng Jun,et al.Metallogenic system and mineralization network[J].Mineral Deposits,2002(2):106-112.
[18]裴中朝,崔来运,任建德,等.东谷水-歪脑地区铜铅锌矿床成矿地质条件及综合找矿模型[J].金属矿山,2016(9):144-150.Pei Zhongchao,Cui Laiyun,Ren Jiande,et al.Metallogenic geological condition and integrated prospecting model of the Cu-Pb-Zn deposit in the East Valley Water-Wainao Area[J].Metal Mine,2016(9):144-150.
[19]叶天竺,张智勇,肖庆辉,等.成矿地质背景研究技术要求[M].北京:地质出版社,2010.Ye Tianzhu,Zhang Zhiyong,Xiao Qinghui,et al.Geological Background Research and Technical requirements[M].Beijing:Geological Publishing House,2010.
[20]叶天竺.固体矿产预测评价方法技术[M].北京:中国大地出版社,2004.Ye Tianzhu.Technology of Predietion and Evluation of Solid Mineral Resources[M].Beijing:China Land Press,2004.
[21]翟裕生,彭润民,邓军,等.成矿系统分析与新类型矿床预测[J].地学前缘,2000(1):123-132.Zhai Yusheng,Peng Runmin,Deng Jun,et al.Metallogenic system analysis and new-type ore deposits forecas[tJ].Earth Science Frontiers,2000(1):123-132.
[22]裴中朝,杨红,李琛,等.河南省卢氏县张家村铁矿矿床地质特征及找矿前景[J].金属矿山,2018(7):139-146.Pei Zhongchao,Yang Hong,Li Chen,et al.Deposit geological characteristics and prospecting potential of Zhangjiacun Iron Mine in Lushi County,Henan Province[J].Metal Mine,2018(7):139-146.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |