Metallogenic prediction of copper polymetallic deposit in the Yueyashan-Laodonggou area, Beishan Ore Belt
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摘要: 月牙山-老硐沟地区位于北山成矿带东南部，区内前期找矿工作主要围绕金、钨等矿种展开，而对铜相关矿床的地质特征和成矿预测则少有涉及。以野外地质调查为基础，结合室内多元找矿信息提取和综合分析，对该区典型铜多金属矿床的地质特征、找矿模型、综合找矿信息等进行了系统研究并开展了成矿预测。研究结果表明：区内的铜多与铁、铅、锌等伴生，矿床受碳酸盐岩、海西-印支期中酸性岩体及北西-北西西向断裂共同控制，为典型的矽卡岩型铜多金属矿床；北西-北西西向断裂、高磁异常体、铜铅锌地球化学异常叠加部位为此类矿床的有利找矿地段。据此，本次工作共圈定了4个预测区（A1、A2、B1、C1），野外查证在其中A1和A2预测区内见较好矿化，为区内下一步的找矿勘查工作指明了方向。Abstract: The Yueyashan-Laodonggou area in the Inner Mongolia is located in the southeast of Beishan Ore Belt.Previous prospecting work in the area focuses on gold, tungsten and other minerals, wheras it rarely involved copper-related deposits.Based on the field geological survey, in combination with extraction and comprehensive analysis of indoor multivariate prospecting information, we systematically studied the geological characteristics, prospecting model and comprehensive prospecting information of typical copper polymetallic deposits in this area, and thus finally carried out metallogenic prediction.The copper in the area mostly occurs with iron, lead and zinc, and the deposits are controlled by carbonate, Paleozoic intermediate-felsicplutons and NW-NWW faults, thus can be classified as skarn-type copper polymetallic deposits.The places with NW-NWW faults, high magnetic anomalies and Cu-Pb-Zn geochemical anomalies are favorable prospecting area for such deposits.Hereby, four prediction areas (A1, A2, B1, C1) have been delineated, and high-quality mineralization and alteration are observed in two of them(A1, A2) by field verification, which points out the direction for the next-stage work in this area.
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Key words:
- Inner Mongolia /
- Beishan Orogen Belt /
- copper polymetallic deposit /
- skarn /
- metallogenic prediction
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图 1 内蒙古月牙山-老硐沟地区地质矿产图
Figure 1. Geological map of the Yueyashan-Laodonggou in Inner Mongolia
图 2 老硐沟矿区地质图(底图据文献[26]修改)
1.第四系冲积物；2.蓟县系-青白口系平头山组；3.长城系古硐井群；4.闪长玢岩；5.辉绿岩；6.花岗闪长岩；7.黑云二长花岗岩；8.花岗细晶岩；9.矿化蚀变带；10.矿体；11.断层及编号；12.性质不明断层；13.矽卡岩化
Figure 2. Geological map of the Laodonggou Deposit area
图 3 老硐沟铜铁多金属矿床矿化和蚀变特征
A.Ⅲ矿段构造带；B.Ⅲ矿段内顺面理发育的黄铁矿；C.条带状展布的绿帘石；E, F.晚期矽卡岩阶段的绿泥石化、绿帘石化；G, H, I.氧化物阶段的磁铁矿，可见晚期硫化物阶段的石英-方解石脉穿插；J, K, L.早期硫化物阶段的黄铁矿、方铅矿
Figure 3. Mineraliszation and alteration characteristics of the Laodonggou copper and iron polymetallic deposit
图 4 梭梭井铜多金属矿床矿化和蚀变特征
A.断裂接触带；B.氧化的铜矿体；C.早期矽卡岩阶段的石榴石；D, E.晚期矽卡岩阶段的绿泥石、绿帘石、透闪石；F.绿帘石中充填氧化物阶段的磁铁矿；G.磁铁矿中充填早期硫化物阶段的黄铜矿；H, I.早期硫化物阶段的黄铁矿、黄铜矿及方铅矿
Figure 4. Mineralisation and alteration of polymetallic ore of the Suosuojing copper polymetallic deposit
图 5 研究区矽卡岩型铜多金属矿床找矿模型
1.二长花岗岩; 2.大理岩; 3.矿体; 4.碳酸盐化; 5.断层; 6.绿泥石化; 7.黄铁矿化
Figure 5. Prospecting model of the skarn-type copper polymetallic deposits of the study area
图 6 月牙山-老硐沟地区化极总水平梯度等值线与综合推断断裂及高磁性体解译图
Figure 6. Interpretation diagram of synthetic inference fault and highly magnetic body of the Yueyashan-Laodonggou area
图 7 月牙山-老硐沟地区水系沉积物测量Co-Cr-Ni-Cu-Zn因子得分图
Figure 7. Co-Cr-Ni-Cu-Zn factor score contour of the Yueyashan-Laodonggou area based on geochemical data
图 8 月牙山-老硐沟地区找矿靶区图
Figure 8. Prospecting target areas of the Yueyashan-Laodonggou area
表 1 研究区化探元素统计特征
Table 1. Statistical characteristics of geochemical elements in the study area
Ag Au Mo Pb Cu W Zn wB/10-9 wB/10-6 平均值 83 1.62 1.46 15.95 17.40 1.96 40.39 异常下限 109 1.36 2.37 38.56 10.20 3.62 39.01 分析值范围 11~13 531 0.2~1 250 0.1~69.4 1.3~2 404 1.3~404 0.12~462 3.9~1 168 
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[1] 卜建军, 吴俊, 史冀忠, 等. 北山-巴丹吉林地区石炭纪-二叠纪构造古地理及其演化[J]. 地质科技情报, 2019, 38(6): 113-120. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKQ201906014.htmBu J J, Wu J, Shi J Z, et al. Carboniferous-Permian tectonic palaeogeography of Beishan-Badain Jaran region and its evolution[J]. Geological Science and Technology Information, 2019, 38(6): 113-120(in Chinese with English abstract) (in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-DZKQ201906014.htm [2] 聂凤军, 胡朋, 江思宏, 等. 北山北部古生代两类花岗岩及有关矿床的钕同位素特征[J]. 矿床地质, 2006, 25(增刊1): 139-142. https://www.cnki.com.cn/Article/CJFDTOTAL-KCDZ2006S1040.htmNie F J, Hu P, Jiang S H, et al. Nd isotope features of two types of granitoids and related ore deposits in the northern part of Beishan area, Northwest China[J]. Mineral Deposits, 2006, 25(S1): 139-142(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-KCDZ2006S1040.htm [3] 王玉往, 王京彬. 北山地区与火山活动有关铜多金属成矿条件及找矿前景浅析[J]. 地质与勘探, 2005, 41(6): 34-37. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKT200506005.htmWang Y W, Wang J B. Metallogenic factors and potential for Cu-polymetallic deposits related to volcanic activity in the Beishan area[J]. Geology and Prospecting, 2005, 41(6): 34-37(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-DZKT200506005.htm [4] 苗来成, 朱明帅, 张福勤. 北山地区中生代岩浆活动与成矿构造背景分析[J]. 中国地质, 2014, 41(4): 1190-1204. doi: 10.3969/j.issn.1000-3657.2014.04.013Miao L C, Zhu M S, Zhang F Q. Tectonic setting of Mesozic magmatism and associated metallogenesis in Beishan area[J]. Geology in China, 2014, 41(4): 1190-1204(in Chinese with English abstract). doi: 10.3969/j.issn.1000-3657.2014.04.013 [5] Xiao W J, Mao Q G, Windley B F, et al. Paleozoic multiple accretionary and collisional processes of the Beishan orogenic collage[J]. American Journal of Science, 2011, 310(10): 1553-1594. http://www.onacademic.com/detail/journal_1000034854506410_6b36.html [6] Xiao W, Windley B F, Allen M B, et al. Paleozoic multiple accretionary and collisional tectonics of the Chinese Tianshan orogenic collage[J]. Gondwana Research, 2013, 23(4): 1316-1341. doi: 10.1016/j.gr.2012.01.012 [7] 贾大为. 内蒙古高石山地区铜多金属矿的地球化学多维异常靶区优选[D]. 北京: 中国地质大学(北京), 2018.Jia D W. Targets selection of copper polymetallic deposits by sorting geochemical multi-dimensional anomalies in Gaoshishan area, Inner Mongolia[D]. Beijing: China University of Geosciences (Beijing), 2018(in Chinese with English abstract). [8] 孙少槐. 综合物化探方法在内蒙古高石山铜金矿区的应用研究[D]. 北京: 中国地质大学(北京), 2009.Sun S H. The synthesis of geophysics and geochemistry application and investigation in Gaoshishan Cu-Au mine of Inner mongoliar[D]. Beijing: China University of Geosciences (Beijing), 2009(in Chinese with English abstract). [9] 杨岳清, 赵金花, 孟贵祥, 等. 内蒙古北山地区斑岩型钼矿的成岩成矿时代和形成环境探讨[J]. 地球学报, 2013, 34(4): 401-412. https://www.cnki.com.cn/Article/CJFDTOTAL-DQXB201304004.htmYang Y Q, Zhao J H, Meng G X, et al. Rock-forming and ore-forming ages as well as formation environments of porphyry molybdenum deposits in Beishan area, Inner Mongolia[J]. Acta Geoscientica Sinica, 2013, 34(4): 401-412(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-DQXB201304004.htm [10] 张善明, 兰生科, 贺中银, 等. 内蒙古北山额勒根乌兰乌拉一带土壤测量地球化学特征及找矿方向[J]. 现代地质, 2018, 32(4): 655-666. https://www.cnki.com.cn/Article/CJFDTOTAL-XDDZ201804003.htmZhang S M, Lan S K, He Z G, et al. Soil geochemical characteristics and prospecting direction in Elegenwulanwula area of Beishan district, Inner Mongolia[J]. Geoscience, 2018, 32(4): 655-666(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-XDDZ201804003.htm [11] 聂凤军, 屈文俊, 刘妍, 等. 内蒙古额勒根斑岩型钼(铜)矿化区辉钼矿铼-锇同位素年龄及地质意义[J]. 矿床地质, 2005, 24(6): 638-646. doi: 10.3969/j.issn.0258-7106.2005.06.007Nie F J, Qu W J, Liu Y, et al. Re-Os isotopic age dating of molybdenite separates from Elegen porphyry Mo (Cu) mineralized area, northwestern Alxa, western Inner Mongolia[J]. Mineral Deposits, 2005, 24(6): 638-646(in Chinese with English abstract). doi: 10.3969/j.issn.0258-7106.2005.06.007 [12] 聂凤军, 江思宏, 赵省民, 等. 内蒙古流沙山金(钼)矿床地质特征及矿床类型的划分[J]. 地质地球化学, 2002, 30(1): 1-7. doi: 10.3969/j.issn.1672-9250.2002.01.001Nie F J, Jiang S H, Zhao X M, et al. Geological features and metallogenic type of the Liushashan Gold (Molybdenum) Deposit in Ejin Qi (Prefecture), western Inner Mongolia[J]. Geology-Geochemistry, 2002, 30(1): 1-7(in Chinese with English abstract). doi: 10.3969/j.issn.1672-9250.2002.01.001 [13] 焦建刚, 汤中立, 钱壮志, 等. 东天山地区图拉尔根铜镍硫化物矿床成因及成矿过程[J]. 岩石学报, 2012, 28(11): 3772-3786.Jiao J G, Tang Z L, Qian Z Z, et al. Genesis and metallogenic process of Tulargen large scale Cu-Ni Sulfide Deposit in eastern Tianshan area, Xinjiang[J]. Acta Petrologica Sinica, 28(11): 3772-3786(in Chinese with English abstract). [14] 邵积东. 内蒙古地质构造单元划分及存在的有关问题[J]. 西部资源, 2016(3): 84-87. https://www.cnki.com.cn/Article/CJFDTOTAL-XBZY201603031.htmShao J D. Division of geological tectonic units in Inner Mongolia and related problems[J]. Western Resources, 2016(3): 84-87(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-XBZY201603031.htm [15] 牛亚卓. 新甘蒙北山地区晚古生代古沉积面貌及构造属性[D]. 西安: 西北大学, 2019.Niu Y Z. Late Paleozoic paleogeographic reconstruction and tectonic implication of the Beishan region, NW China[D]. Xi'an: Northwest University, 2019(in Chinese with English abstract). [16] 郑灵云, 何毅, 杨晓奇, 等. 内蒙古额济纳旗老硐沟金矿床溶洞中金的富集特征及找矿方向[J]. 西部资源, 2019(1): 25-26. doi: 10.3969/j.issn.1672-562X.2019.01.011Zheng L Y, He Y, Yang X Q, et al. Gold enrichment characteristics and prospecting direction in karst cave of Laodonggou Gold Deposit, Ejin Banner, Inner Mongolia[J]. Western Resources, 2019(1): 25-26(in Chinese with English abstract). doi: 10.3969/j.issn.1672-562X.2019.01.011 [17] 杜泽忠, 于晓飞, 李永胜. 内蒙古额济纳旗老硐沟金矿床地质特征[J]. 矿物学报, 2015, 35(增刊1): 996-997. https://www.cnki.com.cn/Article/CJFDTOTAL-KWXB2015S1719.htmDu Z Z, Yu X F, Li Y S. Geological characteristics of Laodonggou Gold Deposit in Ejin Banner, Inner Mongolia[J]. Acta Mineralogica Sinica, 2015, 35(S1): 996-997(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-KWXB2015S1719.htm [18] 杨合群, 赵国斌, 李文明, 等. 内蒙古盘陀山-鹰嘴红山含钨花岗岩带形成时代及源区示踪[J]. 地质与勘探, 2010, 46(3): 407-413. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKT201003006.htmYang H Q, Zhao G B, Li W M, et al. Formation age and source tracing of the tungsten-bearing granite belt in the Pantuoshan-Yingzuihongshan area, Inner Mongolia[J]. Geology and Exploration, 2010, 46(3): 407-413(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-DZKT201003006.htm [19] 杨鑫, 马宝军, 张善明, 等. 内蒙古北山盘陀山地区地质特征及成矿条件分析[J]. 西部资源, 2016(5): 66-67. https://www.cnki.com.cn/Article/CJFDTOTAL-XBZY201605025.htmYang X, Ma B J, Zhang S M, et al. Analysis on geological characteristics and metallogenic conditions of Pantuoshan area, Beishan, Inner Mongolia[J]. Western Resources, 2016(5): 66-67(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-XBZY201605025.htm [20] 郑荣国, 吴泰然, 张文, 等. 北山地区月牙山-洗肠井蛇绿岩的地球化学特征及形成环境[J]. 地质学报, 2012, 86(6): 961-971. doi: 10.3969/j.issn.0001-5717.2012.06.010Zheng R G, Wu T R, Zhang W, et al. Geochemical characteristics and tectonic setting of the Yueyashan-Xichangjing ophiolite in the Beishan area[J]. Acta Geologica Sinica, 2012, 86(6): 961-971(in Chinese with English abstract). doi: 10.3969/j.issn.0001-5717.2012.06.010 [21] 丁建华, 邢树文, 肖克炎, 等. 东天山-北山Cu-Ni-Au-Pb-Zn成矿带主要成矿地质特征及潜力分析[J]. 地质学报, 2016, 90(7): 1392-1412. doi: 10.3969/j.issn.0001-5717.2016.07.010Ding J H, Xing S W, Xiao K Y, et al. Geological characteristics and resource potential analysis of the Dongtianshan-Beishan Cu-Ni-Au-Pb-Zn Metallogenic Belts[J]. Acta Geologica Sinica, 2016, 90(7): 1392-1412(in Chinese with English abstract). doi: 10.3969/j.issn.0001-5717.2016.07.010 [22] 董连慧, 冯京, 刘德权, 等. 新疆成矿单元划分方案研究[J]. 新疆地质, 2010, 28(1): 1-15. doi: 10.3969/j.issn.1000-8845.2010.01.001Dong L H, Feng J, Liu D Q, et al. Research for classification of metallogenic unit of Xinjiang[J]. Xinjiang Geology, 2010, 28(1): 1-15(in Chinese with English abstract). doi: 10.3969/j.issn.1000-8845.2010.01.001 [23] 邵积东, 王守光, 赵文涛, 等. 内蒙古北山-阿拉善地区重要成矿带成矿地质特征及找矿潜力分析[J]. 西部资源, 2009(2): 53-55. https://www.cnki.com.cn/Article/CJFDTOTAL-XBZY200902026.htmShao J D, Wang S G, Zhao W T, et al. Analysis on ore-forming geological characteristics and prospecting potential of the important metallogenic belt in Beishan-Alxa area, Inner Mongolia[J]. Western Resources, 2009(2): 53-55(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-XBZY200902026.htm [24] 梁巨康, 杨晓奇, 高云, 等. 内蒙古老硐沟金矿区溶洞型矿体地质特征与成矿规律研究[J]. 科技视界, 2017(21): 4-5. doi: 10.3969/j.issn.2095-2457.2017.21.003Liang J K, Yang X Q, Gao Y, et al. Study on geological characteristics and metallogenic laws of cave-type orebody in the Old Gougou Gold Deposit, Inner Mongolia[J]. Science and Technology Vision, 2017(21): 4-5(in Chinese with English abstract). doi: 10.3969/j.issn.2095-2457.2017.21.003 [25] 张桐. 内蒙古额济纳旗老硐沟铅银金矿地质特征及找矿预测研究[D]. 北京: 中国地质大学(北京), 2019.Zhang T. Geological characteristics and prospecting forecast of Laodonggou Lead-Silver-Gold Deposit in Ejina Banner, Inner Mongolia[D]. Beijing: China University of Geosciences (Beijing), 2019(in Chinese with English abstract). [26] 钱建平, 符有江, 周永宁, 等. 内蒙古额济纳旗老硐沟金多金属矿区成矿构造系统解析和构造控矿规律[J]. 大地构造与成矿学, 2018, 42(6): 1046-1063. https://www.cnki.com.cn/Article/CJFDTOTAL-DGYK201806009.htmQian J P, Fu Y J, Zhou Y N, et al. Analysis of the metallogenic structure system and the regularities of tectonic ore control of the Laodonggou Gold Polymetallic Mining area, Ejinaqi, Inner Mongolia[J]. Geotectonica et Metallogenia, 2018, 42(6): 1046-1063(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-DGYK201806009.htm [27] 官欢民, 崔玉学. 梭梭井银铅矿床银的赋存状态及其与回收率的关系[J]. 地质与勘探, 1991, 27(9): 28-30. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKT199109004.htmGuan H M, Cui Y X. Mode of occurrence of silver in the Suosuojing Ag-Pb Deposit and its relationship with recovery ratio[J]. Geology and Prospeting, 1991, 27(9): 28-30(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-DZKT199109004.htm [28] 刘学亮, 张恒, 刘泰锋. 高精度磁测在内蒙古某地寻找斑岩型金矿的应用[J]. 工程地球物理学报, 2013, 10(3): 327-332. doi: 10.3969/j.issn.1672-7940.2013.03.010Liu X L, Zhang H, Liu T F. The application of high precision magnetic measurement method to searching porphyry gold deposits in Inner Mogolia[J]. Chinese Journal of Engineering Geophysics, 2013, 10(3): 327-332(in Chinese with English abstract). doi: 10.3969/j.issn.1672-7940.2013.03.010 [29] 黄文斌, 罗先熔, 刘攀峰, 等. 青海省石灰沟地区水系沉积物测量地球化学特征及找矿预测[J]. 地质科技通报, 2020, 39(3): 150-159. https://dzkjqb.cug.edu.cn/CN/abstract/abstract10032.shtmlHuang W B, Luo X R, Liu P F, et al. Geochemical characteristis of stream sediments and ore prospecting prediction in Shihuigou area, Qinghai Province[J]. Bulletin of Geological Science and Technology, 2020, 39(3): 150-159(in Chinese with English abstract). https://dzkjqb.cug.edu.cn/CN/abstract/abstract10032.shtml [30] 魏俊浩. 初论成矿场与矿产勘查意义[J]. 地质科技通报, 2020, 39(1): 112-129. https://dzkjqb.cug.edu.cn/CN/abstract/abstract9932.shtmlWei J H. Preliminary discussion on the theory of ore-formation field and its significant role for mineral exploration[J]. Bulletin of Geological Science and Technology, 2020, 39(1): 112-129(in Chinese with English abstract). https://dzkjqb.cug.edu.cn/CN/abstract/abstract9932.shtml -
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