img

QQ群聊

img

官方微信

高级检索

黄金科学技术 ›› 2021, Vol. 29 ›› Issue (4): 477-488.doi: 10.11872/j.issn.1005-2518.2021.04.186

• 矿产勘查与资源评价 •    

新疆焉耆县松树达坂金矿区岩石地球化学异常特征及找矿效果

范红科1(),郭根明2,董波波2,张凯2,刘豫新1   

  1. 1.西安西北有色地质研究院有限公司,陕西 西安 710054
    2.陕西润基矿业有限公司,陕西 西安 710061
  • 收稿日期:2020-10-19 修回日期:2021-06-05 出版日期:2021-08-31 发布日期:2021-10-08
  • 作者简介:范红科(1972-),男,甘肃泾川人,正高级工程师,从事地质矿产勘查与地球化学勘查工作。1105637838@qq.com

Characteristics of Rock Geochemical Anomalies and Its Prospecting Effect of the Songshudaban Gold Deposit in Yanqi County,Xinjiang

Hongke FAN1(),Genming GUO2,Bobo DONG2,Kai ZHANG2,Yuxin LIU1   

  1. 1.Xi’an Northwest Research Institute of Nonferrous Metals Co. ,Ltd. ,Xi’an 710054,Shaanxi,China
    2.Shaanxi Runji Mining Co. ,Ltd. ,Xi’an 710061,Shaanxi,China
  • Received:2020-10-19 Revised:2021-06-05 Online:2021-08-31 Published:2021-10-08

摘要:

为了查明松树达坂金矿区土壤地球化学异常源,寻找金的矿化富集段,在矿区开展1∶2 000岩石地球化学剖面测量工作,圈定近NWW向展布的Au、As、Sb、Hg、Cu和Bi等元素原生晕综合异常带2条。通过异常查证,新发现金矿体3条,工程控制矿体长60~120 m,厚1.00~3.25 m,金品位为0.65×10-6~2.85×10-6,取得较好的化探异常圈定和地质找矿效果。综合分析矿区岩石地球化学综合异常和金矿化特征,认为与松树达坂次级韧性剪切带有关的中泥盆统萨阿尔明组第一亚组上段是寻找金矿的有利地段,也是重要的找矿标志层位。金矿体严格受韧性剪切带控制,矿区具有寻找韧性剪切带型金矿床的潜力。

关键词: 岩石地球化学, 剖面测量, 地球化学异常特征, 韧性剪切带, 松树达坂金矿区, 焉耆县, 新疆

Abstract:

Songshudaban gold deposit in Yanqi County is located in the middle part of the Southwest Tianshan of Xinjiang gold polymetallic metallogenic belt,and near north margin of suture zone between the Tarim plate and Kazakhstan-Erie plate.Songshudaban gold deposit produced in the Sahentuohai-Dashankou brittle-ductile shear zones.The ore-bearing rock are a set of fine clastic rocks and quartz veins from the middle Devonian Saaerming formation.The NW and NWW trending faults developed in the mining area,and metallogenic geological conditions are superior.1∶10 000 geological survey,1∶10 000 soil geochemical survey and explora-tory trench reveal,and other works have been carried out in the area.Four gold orebodies were found,but these orebodies have the features of small scale,low grade and extends unsteadily,the prospecting results are not outstanding.To identify abnormal sources of soil geochemical anomalies and search mineralized rich areas of gold,expand the size of the existing gold orebodies or find new gold orebodies in Songshudaban area,the 1∶2 000 rock geochemistry profile measurement were carried out,two primary halo comprehensive anomaly zones of Au,As,Sb,Hg,Cu,Bi with NWW trending were delinead.The anomalies are mainly distributed in limonite mineralized,kaolinized sericite phylliterelated to ductile shear zone.The mineralization and alteration of sericite chlorite slate,andesite porphyry,marble and other strata on both sides of the shear zone is relatively weak.After anomaly verification,three new gold orebodies and mineralization spots were found.The engineering control gold orebodies are 60~120 m long and 1.00~3.25 m thick with a grade of 0.65×10-6~2.85×10-6,it means that the good geochemical anomalies and ore prospecting results have been achieved.According to the features of rock geochemistry and gold mineralization,it is believed that the first subgroup of middle Devonian Saaerming formation is the favorable strata for searching gold deposits,and it is very important ore-searching criteria.The gold deposit is strictly controlled by ductile shear zones.There is great potential to find ductile shear zone gold deposits in Songshudaban mine area.

Key words: rock geochemistry, profile measurement, characteristics of geochemical anomalies, ductile shear zone, Songshudaban gold deposit, Yanqi County, Xinjiang

中图分类号: 

  • P618.51

图1

松树达坂金矿区域地质简图(孟金祥等,2000a)1.第四系冲洪积物和残坡积物;2.上第三系砾岩和粉砂岩;3.渐新统—中新统桃园组砾岩;4.上二叠统灰岩和细砂岩;5.中—上石炭统卡拉达坂群砂岩夹砂砾岩和生物灰岩;6.下石炭统野云沟组灰岩和板岩;7.泥盆系哈孜尔布拉克组灰岩和白云岩;8.泥盆系阿萨尔明组绢云石英千枚岩、绢云绿泥石英千枚岩和板岩;9.泥盆系柳树沟组玄武岩和凝灰岩;10.志留—泥盆系夏哈勒恩郭勒组流纹质熔结凝灰岩和晶屑玻屑凝灰岩;11.志留—泥盆系呼斯坦希力组中基性火山碎屑岩;12.志留—泥盆系大山口组粉砂岩;13.元古宙霍拉山群黑云斜长片麻岩、斜长浅粒岩和角闪岩;14.华力西晚期花岗岩;15.华力西中期花岗岩;16.华力西中期闪长岩;17.华力西中期超基性岩;18.华力西早期花岗岩;19.元古宙花岗岩;20.金矿床;21.地质界线;22.断层;23.脆—韧性剪切带;24.工作区"

图2

松树达坂金矿区地质图(范红科等,2020)1.野云沟组灰岩和砂岩;2.中泥盆统萨阿尔明组第一亚组;3.高岭土化绢云石英千枚岩;4.褐铁矿化高岭土化绢云石英千枚岩;5.绢云绿泥板岩;6.安山岩和安山玢岩;7.地质界线;8.断层;9.矿体;10.土壤综合异常及编号"

图3

松树达坂金矿床矿石手标本和镜下特征(a)金矿体;(b)矿石中的“溶蚀”孔洞;(c)黄铁矿呈星点状分布;(d)矿石中的非金属矿物;Py-黄铁矿;Qz+Ser-非金属矿物;Qz-石英;Ser-绢云母;Jr-黄钾铁矾"

图4

松树达坂金矿区岩石地球化学测量采样点位图1.勘探线及编号;2.采样点位及编号"

表1

岩石地球化学剖面测量各元素地球化学参数统计"

元素样品数/件最大值最小值算术平均值富集系数变化系数叠加强度

新疆岩石背景值

(杜佩轩等,2002)

Cu5955 084.92.50127.902.9562.121.9422.34
Pb5957 0304.1063.401.5147.373.3412.60
Zn5958762.7083.301.1349.301.1762.95
W5953.110.150.680.7453.571.210.76
Mo59530.20.143.374.1892.161.320.61
Bi59517.50.020.552.5073.531.620.14
Hg59511 1984.00103.002.3873.733.7011.70
As5951 1151.1044.303.2978.523.304.08
Sb5953270.162.362.4154.882.880.34
Ag5958.310.010.250.2269.231.930.60
Au5952 3500.6033.2011.8179.424.850.58

表2

不同岩石组合中元素地球化学特征"

岩性含量
CuPbZnWMoBiHgAsSbAgAu
绢云绿泥石英片岩14553960.762.430.400.0821.281.060.2127.69
蚀变绢云石英千枚岩10428670.574.590.670.1278.904.480.2342.19
石英脉5499360.414.350.600.2786.312.020.4537.94
断层带15548590.394.320.770.0411.131.030.4331.90
全区岩石12863830.683.370.550.1044.312.360.2533.16

表3

各元素矿化蚀变叠加强度统计"

元素样品数/件剔除高值点数/个剔除前平均值剔除后平均值矿化蚀变叠加强度矿化蚀变叠加强度排序
Au5596033.206.852911
Hg55954103.0027.862002
As5595944.3013.411953
Sb559642.360.821844
Pb5594863.4019.01605
Ag559470.250.13916
Bi559300.550.34498
Cu55931127.9066.00607
W559330.680.56409
Mo559233.372.553010
Zn5591983.3071.002211

图5

岩石样品R型聚类分析谱系图"

表4

松树达坂金矿区各元素背景值与异常下限统计结果"

元素样品数/个异常平均值离差异常下限
Cu3436641100
Pb32619925
Zn3557135100
W3410.560.300.9
Mo3512.552.353.5
Bi3440.340.250.55
Hg32027.8620.5450
As31513.4110.5325
Sb3100.820.452.15
Ag3270.130.090.2
Au3146.855.4412.5

图6

岩石地球化学异常剖析图1.原生晕异常及编号;2.新发现的金矿体;3.地质界线;4.断层;5.典型原生晕剖面位置及编号;6.中泥盆统萨阿尔明组下段第一亚组;7.褐铁矿化绢云石英千枚岩;8.褐铁矿化高岭土化石英绢云千枚岩;9.绢云绿泥石英板岩;10.安山岩和安山玢岩"

Bao Qingzhong,Wang Hong,Sha Deming,al et,2000.Geological characteristics of Dashankou gold deposit in Hejing County of Xinjiang:Contrast with Muruntau gold deposit[J].Journal of Precious Metallic Geology,9(4):200-205.
Bureau of Geology and Mineral Resources of Xinjiang Uygur Autonomous Region,2003.Regional Geological Records ofXinjiang Uygur Autonomous Region[M].Beijing:Geological Publishing House.
Cai Shici,2008.Lithostratigraphy in Xinjiang Uygur Autonomous Region[M].Beijing:China University of Geosciences Publishing House.
Dong Lianhui,Feng Jing,Liu Dequan,al et,2010.Research on metallogenic unit division scheme in Xinjiang[J].Xinjiang Geology,28(1):1-15.
Dong Xinfeng,Xue Chunji,Shi Fupin,2011.Geological characteristics and the geochemistry of ore-forming fluid inclusions in Dashankou gold deposit,Western Tianshan,Xinjiang[J].Earth Science Frontiers,18(5):172-181.
Du Peixuan,Tian Surong,2001.Average background values of elements in rocks,debris and stream sediments of Xinjiang region[J].Geophysical and Geochemical Exploration,25(2):117-122.
Fan Jianqiang,Wu Jinfeng,Wu Xiaofeng,2005.Several problems in the evaluation of geochemical anomalies[J].Minerals and Geology,19(3):306-309.
Fan Hongke,2010.The application of debris geochemical measurement methods in prospecting:Taking Inner Mongolia Baiyinchagan Ag(Au) multi-metal ore as an example[J].Gold Science and Technology,18(1):32-35.
Fan Hongke,Liu Yuxin,Bai Xinhai,al et,2020.Summary of general (detailed)exploration of Songshudaban gold mi-ne in Yanqi County,Xinjiang[R].Xi’an:Xi’an Northwest Research Institute of Nonferrous Metals Co.,Ltd.
GaoYanfang,Li Junying,Chen Junwei,al et,2016.The visualization of iteration processing of geochemical exploration data and an analysis of the result[J].Geophysical and Geochemical Exploration,40(5):1121-1125.
Li Hui,Zhang Wenhua,Liu Baolin,al et,1999.The study on axial zonality sequence of primary halo and some criteria for the application of this sequence for major types of gold deposits in China[J].Geology and Prospecting,35(1):32-35.
Liu Jishun,1996.Some problems in the study of gold mineralization inductile share zones[J].Geological Review,42(2):123-128.
Luo Xianrong,Wen Meilan,Ouyang Fei,al et,2007.Exploration Geochemistry[M].Beijing:Metallurgical IndustryPress.
Meng Xiangjin,Ye Jinhua,Wang Liben,2000a.Geology and geochemistry of the Muruntautype gold deposits in the Sahentuohai-Dashankou metallogenic province,South Tianshan Mountains,China[J].Acta Geoscientia Sinica,11(4):379-388.
Meng Xiangjin,Ye Jinhua,Wang Liben,2000b.Ductile shear zone and gold metallization in the Sahentuohai-Dashankou metallogenic belt,Southern Tianshan,China[J].Journal of Precious Metallic Geology,9(1):20-26.
Qi Shijun,Wang Delin,Liu Tong,2008.Division of metallogenetic region-zones and minerogenic features of major dominant mineral products in Xinjiang[J].Xinjiang Geology,26(4):348-355.
Shao Yue,1997.Rock Measurements(Primary Halo Method)of Hydrothermal Deposits for Prospecting[M].Beijing:Geological Publishing House.
Wang Hong,Bao Qingzhong,Sha Deming,al et,2002.Geochemical anomaly of Sahentuohai gold deposit in Xinjiang,China[J].Geology and Resources,11(1):23-28.
Wang Mancang,Li Weicheng,Zhang Biao,al et,2007.Application of lithological geochemistry profiling in ore prospect[J].Northwesten Geology,40(4):43-52.
Wang Song,Li Shuangying,Yang Dongdong,al et,2011.Characteristics of carbonate rock and sedimentary facies analysis of the Lower Carboniferous Yeyungou Formation in Dashankou section,south Tianshan[J].Chinese Journal of Geology,46(2):404-414.
Xi’an Institute of Geology and Mineral Resources,2006.Prospecting Potential of Major Metallic Minerals in Northwest China [M ].Beijing:Geological Publishing House.
Yang Fuquan,Mao Jingwen,Wang Yitian,al et,2007.Major types,characteristics and metallogeneses of gold deposits in southwest Tianshan Mountains,Xinjiang[J].Mineral Deposits,26(4):361-379.
Ye Qingtong,Wu Yiping,Fu Xujie,al et,1999.Metallogenic Conditions and Prediction of Gold and Non-ferrous Metal Deposits in Southwest Tianshan Mountains[M].Beijing:Geological Publishing House.
Ye Tianzhu,2004.The Technology of Solid Minerals Prognostic and Estimation [M ].Beijing:Dadi China Publishing House.
Zang Jinsheng,Wang Dongxiao,Zhao Ruiqiang,2014.Quantitative of geochemical anomalies[J].Geophysical and Geochemical Exploration,38(6):1114-1117.
Zhao Renfu,Yang Jianguo,Wang Mancang,al et,2002.The study of metallogenic geologic setting and prospecting potential evaluation in Southwestern Tianshan mountains[J].Northwestern Geology,35(4):101-121.
鲍庆忠,王宏,沙德铭,等,2000.新疆和静县大山口金矿床地质特征及其与穆龙套金矿床对比[J].贵金属地质,9(4):200-205.
蔡士赐,2008.新疆维吾尔自治区岩石地层[M].北京:中国地质大学出版社.
董连慧,冯京,刘德权,等,2010.新疆成矿单元划分方案研究[J].新疆地质,28(1):1-15.
董新丰,薛春纪,石福品,2011.新疆西天山大山口金矿地质及成矿流体包裹体地球化学[J].地学前缘,18(5):172-181.
杜佩轩,田素荣,2001.新疆岩石、岩屑、水系沉积物元素背景平均值[J].物探与化探,25(2):117-122.
樊建强,吴金凤,吴晓峰,2005.地球化学异常评价中的几个问题[J].矿产与地质,19(3):306-309.
范红科,2010.岩屑地球化学测量方法在找矿中的应用——以内蒙古白音查干银(金)多金属矿为例[J].黄金科学技术,18(1):32-35.
范红科,刘豫新,白兴海,等,2020.新疆焉耆县松树达坂金矿普详查工作总结[R].西安:西安西北有色地质研究院有限公司.
高艳芳,李俊英,陈军威,等,2016.地球化学勘查数据迭代处理的可视化及结果分析[J].物探与化探,40(5):1121-1125.
李惠,张文华,刘宝林,等,1999.中国主要类型金矿床的原生晕轴向分带序列研究及其应用准则[J].地质与勘探,35(1):32-35.
刘继顺,1996.韧性剪切带中金成矿研究的若干问题[J].地质论评,42(2):123-128.
罗先熔,文美兰,欧阳菲,等,2007.勘查地球化学[M].北京:冶金工业出版社.
孟祥金,叶锦华,王立本,2000a.南天山萨恨托亥—大山口一带穆龙套型金矿床地质及地球化学特征[J].地球学报,11(4):379-388.
孟祥金,叶锦华,王立本,2000b.中国南天山萨恨托亥—大山口成矿带韧性剪切带与金成矿作用[J].贵金属地质,9(1):20-26.
祁世军,王德林,刘通,2008.新疆主要优势矿产成矿区带划分及成矿特征[J].新疆地质,26(4):348-355.
邵跃,1997.热液矿床岩石测量(原生晕法)找矿[M].北京:地质出版社.
王宏,鲍庆忠,沙德铭,等,2002.萨恨托亥金矿床的地球化学异常特征[J].地质与资源,11(1):23-28.
王满仓,李维成,张飚,等,2007.岩石地球化学剖面测量在找矿实践中的应用[J].西北地质,40(4):43-52.
王松,李双应,杨栋栋,等,2011.南天山大山口下石炭统野云沟组碳酸盐岩岩石学特征及沉积相分析[J].地质科学,46(2):404-414.
西安地质矿产研究所,2006.西北地区矿产资源找矿潜力[M ].北京:地质出版社.
新疆维吾尔自治区地质矿产局,1993.新疆维吾尔自治区区域地质志[M].北京:地质出版社.
杨富全,毛景文,王义天,等,2007.新疆西南天山金矿床主要类型、特征及成矿作用[J].矿床地质,26(4):361-379.
叶庆同,吴一平,傅旭杰,等,1999.西南天山金和有色金属矿床成矿条件与成矿预测[M].北京:地质出版社.
叶天竺,2004.固体矿产预测评价方法技术[M ].北京:中国大地出版社.
臧金生,王东晓,赵瑞强,2014.化探异常定量评价[J].物探与化探,38(6):1114-1117.
赵仁夫,杨建国,王满仓,等,2002.新疆西南天山成矿地质背景研究及找矿潜力评价[J],西北地质,35(4):101-121.
[1] 刘彦兵,屈海浪,胡博心,缪广,滕俊伟,武昌胜,王睿鹏. 辽宁排山楼金矿T4矿体Au元素富集规律及其对找矿的指示意义[J]. 黄金科学技术, 2021, 29(3): 325-333.
[2] 陈超民,冷成彪,司国辉. 基于GIS与层次分析法的综合成矿预测——以新疆库米什地区为例[J]. 黄金科学技术, 2020, 28(2): 213-227.
[3] 胡国朝, 杨兴科, 任仓智, 李斌, 韩珂, 安乐, 晁会霞. 陕西凤县马蹄沟—庙沟金矿区控矿构造特征[J]. 黄金科学技术, 2019, 27(4): 469-479.
[4] 韩珂,安乐,杨兴科,刘淑文. 数学地质方法在南秦岭汉阴黄龙金矿中的应用[J]. 黄金科学技术, 2019, 27(1): 1-14.
[5] 陈静,胡继春,逯永卓,卢世银,王树林,徐贝贝. 东昆仑小灶火地区钼矿化正长花岗岩年代学、地球化学特征及其地质意义[J]. 黄金科学技术, 2018, 26(4): 465-472.
[6] 韩珂,杨兴科*,张健,胡国朝. 陕南汉阴黄龙金矿脆—韧性剪切带特征及其对成矿的控制作用[J]. 黄金科学技术, 2017, 25(5): 18-29.
[7] 张磊,佟宇,杨振东,白云龙,刘幸,赵永涛. 辽宁苇子沟地区金铜多金属矿成矿机制及找矿方向[J]. 黄金科学技术, 2017, 25(4): 10-17.
[8] 曹东宏,崔龙,辛小军,朝银银. 西秦岭马坞金矿床韧性剪切带构造控矿特征[J]. 黄金科学技术, 2016, 24(6): 24-31.
[9] 耿国建,马宝军,丛颖,郭龙龙. 辽宁青城子逆冲推覆构造变形与金矿控矿作用探讨[J]. 黄金科学技术, 2016, 24(4): 26-31.
[10] 薛兰花,史老虎,张志军,沈柳生. 新疆卡拉盖雷铜矿隐爆角砾岩地质特征及控矿作用[J]. 黄金科学技术, 2016, 24(1): 23-27.
[11] 王建中,钱壮志,姜超,徐刚,柳世强,唐文恒. 南秦岭白马山金矿区石英闪长岩地球化学特征及其构造意义[J]. 黄金科学技术, 2014, 22(5): 30-38.
[12] 田红彪,赵海滨,刘雪刚,马承,王利兴. 新疆金窝子—210金矿一带深穿透地球化学异常查证及找矿方向[J]. 黄金科学技术, 2014, 22(4): 20-26.
[13] 王立新,贾磊,吴杰,刘冲昊,杨隆勃. 陕西铧厂沟金矿床地质特征及成矿规律[J]. 黄金科学技术, 2013, 21(6): 11-21.
[14] 赵海滨,田红彪,张希兵,韦定君,田璐. 新疆清水泉金矿床控矿因素及找矿标志[J]. 黄金科学技术, 2013, 21(5): 28-33.
[15] 张勇,王翠仙,罗学辉,朝银银,徐涛. 内蒙古巴彦温多尔金矿床韧性剪切带特征及成矿机制[J]. 黄金科学技术, 2013, 21(4): 20-25.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!