长江中下游金属矿找矿前景与找矿方法
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摘要
本文论述了长江中下游地区金属矿床的地质、地球物理和地球化学特点,提出今后深部找矿的主要对象是:找隐伏含矿岩体及有关的各类矿体,找岩体中的大型斑岩型矿床,找受岩体和五通砂岩联合控制的层状矿;讨论了地球物理和地球化学方法应用中要注意解决的几个主要问题,强调应发挥包括重力、磁法、激发极化法、电磁法、岩性探测仪及多种天然地震法和化探方法等综合方法的作用,并与地质矿床成矿规律研究密切结合;讨论了方法应用试验中要注意的几个问题。文章最后一部分是从本区大地构造的演化探讨了区域构造岩浆活动与成矿前景,认为这一地区是扬子板块与华北板块陆-陆碰撞挤压造山带及其前陆区,在岩石圈强烈挤压下形成地壳增厚和深部物质的挤出折返,使深部的高压和超高压变质岩层推到地壳浅部;深部生成的柯石英等高压超高压矿物及地幔熔融岩浆同时上侵;生成大量钙碱性岩浆并存储在中地壳部位,通过长期与中下地壳金属物质进行交换,形成矿液的集中优势,通过后期出现的张性断裂构造而进入地壳表层,再经过与围岩发生物理化学成矿作用后沉淀成矿。归纳出扬子板块与华北板块陆-陆碰撞造山带一种新的构造模式。
This paper deals with the geological, geophysical and geochemical characteristics of ore deposits in the middle and lower Yangtze River valley and proposes the main targets of ore search at depth in the future, i.e.: hidden mineralized intrusions and related various types of orebody, large porphyry ore deposits in intrusions and stratiform deposits controlled by intrusions and the Wutong sandstone. It also discusses several main problems that should be solved in applications of geophysical and geochemical methods and emphasizes that we should bring into play the roles of integrated methods including the gravity method, magnetic method, induced polarization method, electromagnetic method and petrosonde, as well as several seismic methods and geochemical methods, which are closely combined with studies of geology and metallogenic characteristics of ore deposits. Some problems that should be paid attention to in applied tests of the methods are also discussed. Finally, the paper discusses the regional tectono-magmatic activity and metallogenic prospects from the tectonic evolution in the study region. The author thinks that: this region is the continent-continent collision-compression orogenic belt between the Yangtze plate and North China plate and its foreland area and strong lithospheric compression resulted in crustal thickening and extrusion and exhumation of deep materials, thus pushing the deep high-pressure (HP) and ultrahigh-pressure (UHP) metamorphic rocks to the shallow crustal level; HP and UHP minerals such as coesite formed at depth and molten mantle magma intruded upward simultaneously; large amount of calc-alkaline magma was generated and stored in the middle crustal level, and a long period of material exchange between the calc-alkaline magma and metallic materials in the middle and lower crust formed concentrated ore fluids, which entered the superficial layer of the crust through tensile faults that occurred in the late stage;finally after physical and chemical Processes occurred between the ore fluids and country rocks, metallic minerals were deposited to form ore deposits. A new tectonic model in the continent-continent collisional orogenic belt of the Yangtze plate and North China plate has been summed up.
引文
[1]马丽芳主编.长江中下游地质图.中国地质图集[M].北京:地质出版社,2002.Ma Lifang,et al.Geological Atlas of China[M]Beijing:Geological Publishing House,2002.
    [2]杨文采,徐纪人,程振炎,等.苏鲁-大别造山带地球物理与壳幔作用[M].北京:地质出版社,2005.Yang Wencai,Xu Jiren,Cheng Zhenyuan,et al.Regional Geophysics and Crust-Mantle Interaction in Sulu-Dabie OrogenicBelt.Beijing:Geological Publishing House,2005(in Chinese).
    [3]毛景文,胡瑞忠,陈毓川,等.大规模成矿作用与大型矿集区预测研究[M].北京:地质出版社,2006:275-358.Mao Jingwen,Hu Ruizhong,Chen Yuchuan,et al.Studies on the Large-scale Mineralization and Prediction for the Large Mineralized Clusters[M].Beijing:Geological Publishing House,2006,275-358(in Chinese).
    [4]顾连兴,徐克勤.论长江中下游中石炭世海底块状硫化物矿床[J].地质学报,1986,66(2):176-188.Gu Lianxin,Xu Keqin.On the carboniferous submarine massive sulphide deposits in the middle-lower reaches of the Changjiang(Yangzi)River[J].Acta Geological Sinica,1986,66(2):176-188(in Chinese with English abstract).
    [5]王之田.长江中下游铜矿床主要类型、成矿特征及其成矿复合模式[C]//国际交流地质学术论文集,北京:地质出版社,1985.Wang Zhitian.Metallogenic character of major types of copper deposits in middle-lower Yangtze valley and its complex metallogenic model[C]//Scientific Papers on Geology For International Exchange-Prepared for the27th International Geological Congress GPH,Beijing:Geological Publishing House,1985.
    [6]中国地质科学院成矿远景区划室.安徽铜陵铜官山矽卡岩铜铁矿床[G]//矿床成矿模式选编(一).1990.Section of Minerogenic Prospect Division,Chinese Academy of Geological Sciences,Tongguanshan skarn copper-iron deposit,Tongling,Anhui[G]//Selected Papers of Mineral Deposit Models I,1990(in Chinese).
    [7]安徽、湖北、江西、江苏地质矿产局,上海经济区地质中心编.长江中下游铜铁硫金(多金属)成矿带远景区划——长江中下游铜铁硫金(多金属)成矿带地质矿产特征、成矿规律及成矿预测(二)(狮子山矽卡岩铜铁矿床).1985.Anhui,Hubei,Jiangxi and Jiangsu Bureaus of Geology and MineralExploration and Development and Geological Center of the Shanghai Economic Region(eds.).Prospect Regionalization of the Middle and Lower Yangtze River Valley Copper-Iron-Sulfur-Gold(Polymetallic)Metallogenic Belt-Geological and Mineral Resource Characteristics,Metallogenic rule and Metallogenic Prediction of the Middle and Lower Yangtze River Valley Copper-Iron-Sulfur-Gold(Polymetallic)Metallogenic Belt,II(Shizishan skarn copper-iron deposit),1985(in Chinese).
    [8]中国地质科学院成矿远景区划室.江西九江地区铜矿床区域成矿模式[G]//矿床成矿模式选编(二),1991.Section of Minerogenic Prospect Division,Chinese Academy of Geological Sciences,Regional mineral model of copper deposits in the Jiujiang area,Jiangxi[G]//Selected Papers of Mineral Deposit Models,II.1991.(in Chinese).
    [9]裴荣富.陆相火山盆地中与玢岩有关的(宁芜式)铁矿床模式[M]//中国矿床模式.北京:地质出版社,1995.Pei Rongfu.陆相火山盆地中与玢岩有关的(宁芜式)铁矿床模式[M]//Mineral Deposit models of China.Beijing:Geological Publishing House,1995.
    [10]中国国土资源航空物探遥感中心.航遥五十年图片集.2007.Airborne Geophysical Remote Sensing Center,Ministry of Land and Resources of China.A Collection of Photographs of the Airborne Geophysical Remote Sensing Center,Ministry of Land and Resources over the Past50Years.2007.(in Chinese).
    [11]江昌洲.铜陵狮子山物探报告[R].1958.Jiangchangzhou.Geophysical Report of Shizishan,Tongling[R].1958(in Chinese).
    [12]刘崇民,吴承烈,徐外生,等.中国主要类型铜矿勘查地球化学模型[M].北京:地质出版社,1998:161-165.Liu Chongmin,Wu Chenglie,Xu Waisheng,et al.The Exploration Geochemical Model for Major Types of Copper Deposits in China.Beijing:Geological Publishing House,1998:161-165(in Chinese).
    [13]芮宗遥,叶锦华,张立生,等.扬子克拉通周边及其隆起边缘的铅锌矿床[J].中国地质,31(4):337-346.Rui Zongyao,Ye Jinhua,Zhang Lisheng,et al.Pb-Zn deposits on the perimeter of the Yangtze craton and on the margins of its uplifts[J].Geology in China,2004,31(4):337-346(in Chinese with English abstract).
    [14]中国地质科学院成矿远景区划室.湖北铜绿山矽卡岩铜铁矿床[G]//矿床成矿模式选编(一).1990:102.Section of Minerogenic Prospect Division,Chinese Academy of Geological Sciences,Tonglüshan skarn copper-iron deposit,Hubei[G]//Selected Papers of Mineral Deposit Models,I.1990:102(in Chinese).
    [15]丁鹏飞.迎用综合信息划分长江中下游地区的构造岩浆岩带[C]//重点成矿区带的区域构造的成矿构造文集.北京:地质出版社,2001:103-117.Ding Pengfei,2001.Dividing the tectono-magmatic belt in the middle and lower Yangtze valley region by using integratedinformation[C]//Contributions to Metallogenic Structure of Regional Structure in Major Metallogenic Provinces(Belts).Beijing:Geological Publishing House,103-117(in Chinese).
    [16]熊光楚.地球物理调查预测金属矿产[M].北京:地质出版社,1986:33-35.Chen Guangchu,1986.Predicting Metallic Mineral Resources by Geophysical Survey[M].Beijing:Geological Publishing House,33-35(in Chinese).
    [17]吕庆田,侯增谦,赵金花,等.深地震反射剖面揭示的铜陵矿集区复杂地壳结构形态[J].中国科学(D辑),2003,33(5):442-449.LüQingtian,Hou Zengqian,Zhao Jinghua,et al.Complicated crustal strutmes of the Tongling metalogenic province revealed on deep seismic reflection profiling[J].Science in China(Series D),2003,33(5):442-449(in Chinese).
    [18]物探队、综合研究队.区域重、磁场的综合分析对安徽内生铁(铜)成矿预测的意义及方法[J].安徽铁矿地质,1977年12月,第一辑.Geophysical Party and Comprehensive Research Party.Significance of the integrated analysis of the magnetic field for endogenic iron(copper)deposit prediction in Anhui and method[J].Iron Deposit Geology of Anhui,First Issue,December,1977(in Chinese).
    [19]吕庆田,史大年,赵金花,等.深部矿产勘察的地震学方法:问题与前景-铜陵矿集区的应用实例[J].地质通报,2005,24(3):211-217.LüQingtian,Shi Danian,Zhao Jinhua,et al.Seismic method for deep mineral exploration:Problems and prospects-A case study of the Tongling ore district[J].Geological Bulletin of China,2005,24(3):211-217(in Chinese with English abstract).
    [20]吕庆田,杨竹森,严加永,等.长江中下游成矿带深部成矿潜力、找矿思路与初步尝试[J].地质学报,2007,81(7):865-881.LüQingtian,Yang Zhusen,Yan Jiayong,et al.The metallogenic potential,prospecting idea and primary attempt in depth of the ore belt of the middle and lower reach of the Yangtze River——A case study of Tongling ore district[J].Acta Geologica Sinica,2007,81(7):865-881(in Chinese with English abstract).
    [21]常印佛,刘湘培,吴言昌.长江中下游铜铁成矿带[M].北京:地质出版社,1991.Chang Yinfo,Liu Xiangpei,Wu Yanchang.The copper-iron belt of the lower and middle reaches of the Changjiang River[M].Beijing:Geological Publishing House,1991(in Chinese).
    [22]安徽省国土资源厅.野外地质考察点矿床地质特征简介(铜山CSAMT)[R].全国深部找矿工作研讨会会议资料,2007.Bureau of Land and Resources of Anhui Province.Introduction to the geological characteristics of mineral deposits recognized at field geological investigation points(Tongshan CSAMT)[R].Data of the Symposium of Nationwide Deep Mineral Prospecting,2007(in Chinese).
    [23]李曙光.论华北与扬子陆块的碰撞时代——同位素年代学方法的原理及应用[J].安徽地质,1992,2(4):13-23.Li Shuguang.On the time of collision between North China and Yangtze landmasses-Principal and application of isotope chronological methods[J].Geology of Anhui,1992,2(4):13-23(inChinese with English abstract).
    [24]毛景文,华仁民,李晓波.浅议大规模成矿作用与大型矿集区[J].矿床地质,1999,18(4):291-299.Mao Jingwen,Hua Renmin,Li Xiaobo.A preliminary study of large-scale metallogenesis and large clusters of mineral deposits[J].Mineral Deposits,1999,18(4):291-299(in Chinese with English abstract).
    [25]邓晋福,吴宗絮.下扬子克拉通岩石圈减薄事件与长江中下游Cu、Fe成矿带[J].安徽地质,2001,11(2):86-91.Deng Jinfu,Wu Zongxu.Lithospheric thinning event in the lower Yangtze craton and Cu-Fe metallogenic belt in the middle and lower Yangtze River reaches[J].Geology of Anhui,2001,11(2):86-91(in Chinese with English abstract).
    [26]李东旭.旋扭构造动力学-理论、方法及应用[M].北京:地质出版社,1992.Li Dongxu.Dynamics of Rotation-sheave Structures-Theory,Method&Application[M].Beijing:Geological Publishing House.1992(in Chinese).
    [27]Xu Zhiqin,Zeng Lingsen,Liu Fulai,et al.Polyphase subduction and exhumation of the Suluhigh-pressure-ultrahigh-pressure metamorphic terrane.Geological Society of America,Special Paper403,2006.
    [28]万天丰.中国大地构造纲要[M].北京:地质出版社,2004:144-146.Wan Tianfeng.Tectonic Outline of China[M].Beijing:Geological Publishing House,2004,144-146(in Chinese).
    [29]翟裕生,姚书振,林新多.长江中下游地区铁铜(金)成矿规律[J].北京:地质出版社,1992.Zhai Yusheng,Yao Shuzhen,Lin Xinduo.Iron-Copper(Gold)Metallogenic Characteristics in the Middle and Lower Yangtze River Valley[J].Beijing:Geological Publishing House,1992(in Chinese).
    [30]尹安.喜马拉雅-青藏高原造山带地质演化[J].地球学报,2001,22(3):193-230.Yin An.Geological evolution of the Himalaya-Qinghai-Tibet orogenic belt[J].Acta Geoscientia Sinica,2001,22(3):193-230(in Chinese with English abstract).
    [31]王小凤,李中坚,陈柏林,等.郯庐断裂带[M].北京:地质出版社,2000.Wang Xiaofeng,Li Zhongjian,Chen Bolin,et al.On Tan-Lu fault Zone[M].Beijing:Geological Publishing House,2000(in Chinese).
    [32]刘少峰,张国伟,程顺有,等.东秦岭-大别山及邻区盆地演化与深部构造作用过程[C]//李思田,王华,路凤香主编.盆地动力学-基本思路与若干研究方法.武汉:中国地质大学出版社,1999:130-145.Liu Shaofeng,Zhang Guowei,Cheng Shunyou,et al.Basin evolution and deep tectonic processes in the East Qinling-Dabie mountains and adjacent areas[C]//Wang Hua,Lu Fengxiang(eds),Basin Dynamics——Basic Concept and Several Research Methods.Wuhan:China University of Geosciences Press,1999,130-145(inChinese).
    [33]游振东,韩郁箐,杨巍然,等.东秦岭大别高压超高压变质带[M].北京:地质出版社,1998.You Zhengdong,Han Yujing,Yang weiran,et al.The High-pressure and Ultra-high-pressure Metamorphic Belt in the East Qinling and Da bie Mountains[M].Beijing:Geological Publishing House,1998(in Chinese).
    [34]吕古贤,王方正,刘瑞繤.超高压变质的构造附加压力与形成深度[M].北京:科学出版社,2004.LüGuxian,Wang Fangzheng,Liu Ruixun.Additional Tectono-Induced Pressure and Formation Depth of Ultra-Pressure Metamorphism[M].Beijing:Science Press,2004(in Chinese).
    [35]丁悌平.大别山超高压变质岩形成深度的同位素限制[J].地质力学学报,2000,6(3):39-44.Ding Tiping.Isotopic constraints on the formation depth of ultrahigh pressure metamorphic rocks in the dabie region[J].Journal of Geomechanics,2000,6(3):39-44(in Chinese with English abstract).
    [36]马昌前,杨坤光,许长海,等.大别山中生代钾质岩浆作用与超高压变质地体的剥露机理[J].岩石学报,1999,15(3):375-395.Ma Changqian,Yang Kunguang,Xu Changhai,et al.Mesozoic potassic magmatism in the Dabie Mountains:Implication for exhumation mechanism of ultrahigh pressure metamorphic terranes[J].Acta Petrologica Sinica,1999,15(3):375-395(in Chinese with English abstract).
    [37]汤加富,周存亭,侯明金,等.大别山及临区地质构造特征与形成演化——地幔差逆流与陆内多期造山[M].北京:地质出版社,2003.Tang Jiafu,Zhon Cunting,Hou Mingjin,et al.The Geological Characteristics,Formation and Evolution of Dabie Mountains and Its Adjacent Regions--the Mantle Differential Circulation And Intracontinental Multi-Stage Orogeny[M].Beijing:Geological Publishing House,2003(in Chinese).
    [38]王椿镛,丁志峰,宋建立,等.大别造山带地壳S波速度结构[J].地球物理学报,1997,40(3),337-346.Wang Chunyong,Ding Zhifeng,Song JianLi,et al.Shear wave velocity structure in Dabieshan orogenic belt[J].Chinese Journal of Geophysics,1997,40(3):337-346(in Chinese with English abstract).
    [39]王椿镛,张先康,丁志峰,等.大别造山带上部地壳结构的有限差分层析成像[J].地球物理学报,1997,40(4),495-501.Wang Chunyong,Zhang Xiankang,Ding Zhifeng,et al.Finite-difference tomography of upper crustal structure in Dabieshan orogenic belt[J].Chinese Journal of Geophysics,1997,40(4),495-501.
    [40]徐佩芬,刘福田,王清晨,等.大别—苏鲁碰撞造山带的地震层析成像研究——岩石圈三维速度结构[J].地球物理学报,2000,43(3):377-401.Xu Peifen,Liu futian,Wang Qingchen,et al.Seismic tomography beneath the Dabie-Sulu collision orogen——3-D velocity structuresof lithosphere[J].Chinese Journal of Geophysics.2000,43(3):377-401(in Chinese with English abstract).
    [41]董树文,高锐,李秋生,等.大别山造山带前陆深地震反射剖面[J].地质学报,2005,79(5):595-600.Dong Shuwen,Gao Rui,Li Qiusheng,et al.A deep seismic reflection profile across a foreland of the Dabie Orogen[J].Acta Geologica Sinica,2005,79(5):595-600(in Chinese with English abstract).
    [42]陈立德,付虹.地震预报基础与实践[M].北京:地震出版社,2003:57-58.Chen Lide,Fuhong.Fundament and Practice of Earthquake Prediction[M].Beijing:Seismological Press,2003,57-58(in Chinese).

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