GEOLOGICAL CHARACTERISTICS AND METALLOGENIC AGE OF THE LARGE SILVER-LEAD-ZINC DEPOSIT IN HALASHENG OF MANZHOULI AREA, INNER MONGOLIA
-
摘要:
矿床产于哈拉胜火山穹隆中，成矿与火山－岩浆作用关系密切.钻探和高磁资料显示，火山基底为额尔古纳河组，穹隆核部为次火山岩体，盖层塔木兰沟组和满克头鄂博组火山－沉积岩为容矿围岩.共圈定的11条矿体分布于穹隆东北部，受近南北向张性断裂-裂隙控制，产状较陡.4条主矿体长500~1400 m，平均厚度1~3 m，延深一般500~900 m.自岩体至围岩化探异常元素组合依次为Bi（-Pb-Ag-As-Mo）→Ag-Pb-Mo-Cu→Pb-Zn-As→Ag-Pb-Zn-Sb→Ag-Pb-Zn-Sb；矿化元素组合依次为Cu（-Mo-Pb-Zn）→Pb-Zn-Ag→Pb-Ag；围岩蚀变由岩体内部向外依次为硅化－钾化－石英绢云母化→夕卡岩化→玉髓化－绿帘石化－绿泥石化－碳酸盐化.3件岩浆岩锆石U－Pb年龄为161~142 Ma，结合区域典型矿床研究成果，认为矿床成岩成矿于晚侏罗世—早白垩世，成矿年龄为142 Ma.
Abstract:This Ag-Pb-Zn deposit is occurred in the Halasheng volcanic dome, with mineralization closely related to volcano-magmatism. The drilling and high-precision magnetic data show that the volcanic basement is the Ergunahe Formation, with subvolcanic body as the core of the dome and the volcanic-sedimentary cap rocks of Tamulangou and Manketouebo formations as ore-host rocks. The delineated 11 orebodies in the northeast of the dome are controlled by the N-S-trending extensional fault/fracture with steep occurrence. The four main orebodies are 500-1400 m long with an average thickness of 1-3 m and general depths of 500-900 m. The geochemical anomaly element assemblages from the rock body to surrounding rocks are in the order of Bi(-Pb-Ag-As-Mo)→Ag-Pb-Mo-Cu→Pb-Zn-As→Ag-Pb-Zn-Sb→Ag-Pb-Zn-Sb. The mineralized element associations are Cu (-Mo-Pb-Zn)→Pb-Zn-Ag→Pb-Ag in sequence. The wallrock alterations from inside to outside of the rock body are silicification→potash feldspathization→quartz sericitization→skarnization→chalcedonization→epidotization→chloritization→ carbonation successively. The zircon U-Pb isotopic age of 3 magmatic rock samples is 161-142 Ma. Combined with the research of regional typical deposits, it is believed that the diagenesis and mineralization occurred in Late Jurassic to Early Cretaceous with a metallogenic age of 142 Ma.
-
Key words:
- Ag-Pb-Zn deposit /
- epithermal type /
- Halasheng /
- Xin Barag Youqi /
- Inner Mongolia
-
-
[1] 聂凤军, 刘飞翼, 刘勇, 等.中蒙边境查夫-甲乌拉地区中生代银多金属矿床成矿作用[J].吉林大学学报:地球科学版, 2011, 41(6):1715-1725. http://www.cqvip.com/QK/91256B/201106/40358040.html
[2] 许立权, 刘翠, 邓晋福, 等.内蒙古额仁陶勒盖银矿区火成岩岩石地球化学特征及锆石SHRIMP U-Pb同位素定年[J].岩石学报, 2014, 30(11):3202-3212. http://d.old.wanfangdata.com.cn/Periodical/ysxb98201411008
[3] 李铁刚.内蒙古甲乌拉-查干布拉根铅锌银矿田成矿作用[D].北京: 中国地质大学, 2016: 74-78.
http://cdmd.cnki.com.cn/Article/CDMD-11415-1016067633.htm [4] 李铁刚, 刘军, 武广, 等.大兴安岭北部甲乌拉铅锌银矿床Rb-Sr同位素测年及其地质意义[J].岩石学报, 2014, 30(1):257-270. http://d.old.wanfangdata.com.cn/Periodical/ysxb98201401019
[5] 赵岩.内蒙古得尔布干成矿带铅锌银矿成矿模式与找矿预测[D].北京: 中国地质大学, 2017: 53-54.
http://cdmd.cnki.com.cn/Article/CDMD-11415-1017126693.htm [6] Li T G, Wu G, Liu J, et al. Geochronology, fluid inclusions and isotopic characteristics of the Jiawula Pb-Zn-Ag deposit, Inner Mongolia, China[J]. Journal of Asian Earth Scionce, 2015, 103:305-320. doi: 10.1016/j.jseaes.2014.10.003
[7] 牛斯达.大兴安岭甲乌拉铅锌银矿岩浆侵位序列与成矿——来自年代学、地球化学和成因矿物学的证据[D].北京: 中国地质大学, 2017: 95-96.
[8] 明珠, 孙景贵, 闫佳, 等.内蒙古东部得耳布尔铅锌矿床安山岩的形成环境和演讲热液演化史:锆石U-Pb定年[J].世界地质, 2015, 34(3):590-598. doi: 10.3969/j.issn.1004-5589.2015.03.002
[9] 杨梅, 王忠禹, 孙贵景, 等.大兴安岭西坡甲乌拉铜银铅锌矿床富碱花岗斑岩的成因及其地质意义:锆石U-Pb年定和球地学化特征[J].吉林大学学报:地球科学版, 2017, 47(2):477-496. http://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ201702014.htm
[10] 杨梅.大兴安岭西坡甲乌拉铜铅锌矿床成因研究[D].长春: 吉林大学, 2017: 95-96.
http://cdmd.cnki.com.cn/Article/CDMD-10183-1017156281.htm [11] 张璟, 邵军, 鲍庆中, 等.蒙古国乌兰铅锌矿地质特征、岩石地球化学特征及U-Pb年龄[J].中国地质, 2014, 41(4):1124-1135. doi: 10.3969/j.issn.1000-3657.2014.04.007
[12] 戴蒙, 严光生, 刘翠, 等.内蒙古满洲里地区甲乌拉银铅锌矿区石英斑岩SHRIMP锆石U-Pb同位素年代学研究[J].矿床地质, 2014, 33(增刊):183-184. http://d.old.wanfangdata.com.cn/Conference/8450604
[13] 崔芳华, 郑长青, 丁雪, 等.内蒙古额尔古纳八大关牧场"佳疙瘩组"变质岩系原岩研究[J].吉林大学学报:地球科学版, 2014, 44(1):198-212. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=cckjdxxb201401017
[14] Wu G, Chen Y C, Chen Y J, et al. Zircon U-Pb ages of the metamorphic supracrustal rocks of the Xinghuadukou Group and granitc complexes in the Argun massif of the northern Great Hinggan Range, NE China, and their tectonic implications[J]. Journal of Asian Earth Sciences, 2012, 49:214-233. doi: 10.1016/j.jseaes.2011.11.023
[15] 葛文春, 吴福元, 周长勇, 等.大兴安岭北部塔河花岗岩体的时代及对额尔古纳地块构造归属的制约[J].科学通报, 2005, 50(12):1239-1247. doi: 10.3321/j.issn:0023-074X.2005.12.015
[16] Wu G, Sen F Y, Zhao C S, et al. Discovery of the Early Paleozonic post-collisional granites in the northern margin of the Erguna massif and its geological significance[J]. Chinese Science Bulletin, 2005, 50(23):2733-2743. doi: 10.1007/BF02899644
[17] 李锦轶.中国东北及邻区若干地质构造问题的新认识[J].地质论评, 1998, 44(4):339-347. doi: 10.3321/j.issn:0371-5736.1998.04.002
[18] 李锦轶, 莫申国, 和政军, 等.大兴安岭北段地壳左行走滑运动的时代及其对中国东北及邻区中生代以来地壳构造演化重建的制约[J].地学前缘, 2004, 11(3):157-167. doi: 10.3321/j.issn:1005-2321.2004.03.017
[19] 祁进平, 陈衍景, Pirajno F.东北地区浅成低温热液矿床的地质特征和构造背景[J].矿物岩石, 2005, 25(2):47-59. doi: 10.3969/j.issn.1001-6872.2005.02.009
[20] 黄始琪, 董树文, 胡健民, 等.蒙古-鄂霍次克构造带的形成与演化[J].地质学报, 2016, 90(9):2192-2205. doi: 10.3969/j.issn.0001-5717.2016.09.008
[21] 翟德高, 刘家军, 王建平, 等.内蒙古甲乌拉银多金属矿床稳定同位素地球化学及成矿流体性质研究[J].矿物学报, 2009, 增刊:348-349. doi: 10.3321/j.issn:1000-4734.2009.z1.183
[22] 翟德高, 王建平, 刘家军, 等.内蒙古甲演乌化拉与银成多矿金机属制矿分床析成矿流体[J].矿物岩石, 2010, 30(2):68-76. doi: 10.3969/j.issn.1001-6872.2010.02.012
[23] 翟德高, 刘家军, 王建平, 等.内蒙古甲乌拉大型Pb-Zn-Ag矿床地球化学稳定同位素研究[J].地学前缘, 2013, 20(2):213-225. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dxqy201302023
[24] HU Shao-kang, YAN Hong-quan, YE Mao, et al. Metallogenic focus-area and superlarge mineral deposits in bordering zones between China, Russia and Mongolia[J]. Science China:Series D (Earth Sciences), 1998(s1):28-36. http://www.cnki.com.cn/Article/CJFDTotal-JDXG1998S1004.htm
[25] 李宪臣, 秦克章.内蒙古甲乌拉-查干布拉根银铅锌铜矿床主成矿元素分布规律及意义[J].有色金属矿产与勘查, 1999, 8(6):512-516. http://www.cnki.com.cn/Article/CJFDTotal-YSJS199906044.htm
[26] 李宪臣, 孟昭君.内蒙古乌奴格吐山-哈拉胜成矿富集区铜多金属资源潜力评价[J].矿产与地质, 2003, 97(17):294-297. http://d.old.wanfangdata.com.cn/Periodical/kcydz2003z1010
[27] 解成波, 刘明.查干布拉根银铅锌金矿床地质特征及成因类型[J].世界地质, 2001, 20(1):25-29. doi: 10.3969/j.issn.1004-5589.2001.01.005
[28] 杨祖龙, 张德全, 李进文, 等.得尔布干成矿带西南段矿床类型、成矿分带及找矿方向[J].矿床地质, 2009, 28(1):53-62. doi: 10.3969/j.issn.0258-7106.2009.01.005
[29] 陈祥.内蒙古额仁陶勒盖银矿床成岩成矿模式[J].桂林工学院学报, 2000, 20(1):12-20. doi: 10.3969/j.issn.1674-9057.2000.01.003
[30] 秦克章, 王之田, 潘龙驹.满洲里-新巴尔虎右旗铜钼铅锌银成矿带成矿条件与斑岩含矿性评价[J].地质论评, 1990, 36(6):479-488. doi: 10.3321/j.issn:0371-5736.1990.06.001
[31] 秦克章.额尔古纳南段中生代斑岩-次火山岩-浅成低温Cu、Mo、Pb、Zn、Ag成矿系统[J].矿床地质, 1998, 17(增刊):201-206. http://d.old.wanfangdata.com.cn/Conference/135879
[32] 双宝, 葛玉琦, 刘继贤.内蒙古呼盟地区甲乌拉银铅锌矿床流体包裹体与成矿的关系[J].吉林地质, 2009, 28(2):32-47. doi: 10.3969/j.issn.1001-2427.2009.02.009
[33] 向伟东, 胡绍康, 闫鸿铨, 等.大兴安岭西坡及邻区银铅锌矿床成矿作用若干问题的讨论[J].铀矿地质, 1998, 14(6):344-351. http://www.cnki.com.cn/Article/CJFDTotal-YKDZ199806003.htm
[34] 田京, 李进文, 王润和, 等.内蒙古额仁陶勒盖地区侵入岩LA-ICP-MS锆石U-Pb年龄及地球化学特征[J].中国地质, 2014, 41(4):1092-1107. doi: 10.3969/j.issn.1000-3657.2014.04.005
[35] WANG Fei, ZHOU Xin-hua, ZHANG Lian-chang, et al. late Mesozonic volcanism in the Great Xing'an Range (NE China):Timing and implications for the dynamic setting of NE Asia[J]. Earth and Planeary Science Letters, 2006, 251(4):179-198. http://cn.bing.com/academic/profile?id=d1660018b51444bdcc4baaaad24c7e8e&encoded=0&v=paper_preview&mkt=zh-cn
-
下载:
图(5)
计量
- 文章访问数: 474
- PDF下载数: 91
- 施引文献: 0