江西东坪石英脉型黑钨矿矿床地质特征、控矿因素及找矿标志
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摘要
东坪钨矿床是近年在赣北地区新发现的首个超大型石英脉型黑钨矿矿床,位于长江中下游成矿带幕阜山地区东坪—香炉山钨矿找矿远景区东部。矿床赋矿层位为新元古代双桥山群安乐林组浅变质岩系,北东向断裂及其两侧的次级裂隙为区内主要控矿构造、容矿构造,隐伏的燕山晚期黑云母二长花岗岩为成矿岩体,与区内钨多金属成矿关系密切的为石英脉状硅化;两个矿带的钨矿体均产于成矿岩体外接触带,呈现了石英脉型黑钨矿矿床典型的"五层楼"分带特征,矿石工业类型主要为黑钨矿矿石;明确了构造和岩浆岩等主要控矿因素;总结出地表微细裂隙云英岩化-黄铁矿化蚀变带、含硫化物石英细脉带、石英脉、重砂及地球化学异常为区内主要找矿标志。
Dongping tungsten deposit is the first super large quartz vein type wolframite deposit found in the north of Jiangxi Province in recent years. It is located in the east of the prospecting area of Dongping-Xianglushan in the Mufu Mountain metallogenic belt in the middle and lower reaches of the Yangtze River. The ore bearing strata of the deposit are shallow metamorphic rocks in the Neoproterozoic Anlin group of Shuangqiao Formation. The north-east trending fault and its secondary fissures are the main ore controlling and ore bearing structures in the area. The concealed Late Yanshanian black mica granites are the ore-forming rock mass, and the quartz vein silicification is closely related to the tungsten polymetallic mineralization in the area. The tungsten ore bodies of the two ore belts occur in the contact zone of the ore forming rocks, showing the typical "five storey" zoning characteristics of the quartz vein type wolframite deposit, and wolframite ore is the main ore type. It is concluded that the mica-pyritization alteration zone, sulfide-bearing quartz vein zone, quartz vein, heavy sand and geochemical anomalies are the main prospecting indicators in this area.
Dongping tungsten deposit is the first super large quartz vein type wolframite deposit found in the north of Jiangxi Province in recent years. It is located in the east of the prospecting area of Dongping-Xianglushan in the Mufu Mountain metallogenic belt in the middle and lower reaches of the Yangtze River. The ore bearing strata of the deposit are shallow metamorphic rocks in the Neoproterozoic Anlin group of Shuangqiao Formation. The north-east trending fault and its secondary fissures are the main ore controlling and ore bearing structures in the area. The concealed Late Yanshanian black mica granites are the ore-forming rock mass, and the quartz vein silicification is closely related to the tungsten polymetallic mineralization in the area. The tungsten ore bodies of the two ore belts occur in the contact zone of the ore forming rocks, showing the typical "five storey" zoning characteristics of the quartz vein type wolframite deposit, and wolframite ore is the main ore type. It is concluded that the mica-pyritization alteration zone, sulfide-bearing quartz vein zone, quartz vein, heavy sand and geochemical anomalies are the main prospecting indicators in this area.
引文
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[8] 晏超,陈郑辉,杨立强,等.赣北东坪铜钨多金属矿点岩体锆石U-Pb定年及其地质意义[[J].中国钨业,2017,32 (3):1-11.Yan Chao,Chen Zhenghui,Yang Liqiang,et al.Zircon U-Pb Dating of Rock Mass and Its Geological Significance of Dongping Copper Tungsten Polymetallic Ore Point in North Jiangxi[J].China Tungsten Industry,2017,32 (3):1-11.
[9] 杨明桂,王发宁,曾勇,等.江西北部金属成矿地质特征[M].北京:中国大地出版社,2004.Yang Minggui,Wang Faning,Zeng Yong,et al.Geological Characteristics of Northern Metal Mineralization in Jiangxi[M].Beijing:China Land Press,2004.
[10] 王登红,唐菊兴,应立娟,等.“五层楼+地下室”找矿模型的适用性及其对深部找矿的意义[J].吉林大学学报(地球科学版),2010,40(4):733-738.Wang Denghong,Tang Juxing,Ying Lijuan,et al.Application of “Five Levels+Basement” Model for Prospecting Deposits Into Depth[J].Journal of Jilin University(Earth Science Edition),2010,40(4):733-738.
[11] 黄修保,余忠珍,邹国庆,等.赣西北地区中元古代双桥山群沉积特征[J].地质通报,2003,22(1):43-49.Huang Xiubao,Yu Zhongzhen,Zou Guoqing,et al.Sedimentary Characteristics of Mesoproterozoic Shuangqiaoshan Group in Northwest Jiangxi[J].Geological Bulletin,2003,22(1):43-49.
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[13] 彭忠,肖翔.西藏察隅县那阿多金属矿矿石特征研究及其意义[J].四川地质学报,2013,33(5):13-17.Peng Zhong,Xiao Xiang.Study on Ore Characteristics of Naa Polymetallic Mine in Chayu County,Tibet and Its Significance[J].Acta Geologica Sichuan,2013,33(5):13-17.
[14] 许建祥,曾载淋,王登红,等.赣南钨矿新类型及“五层楼+地下室”找矿模型[J].地质学报,2008,82(7):880-887.Xu Jianxiang,Zeng Zailin,Wang Denghong,et al.A New Type of Tungsten Deposit in Southern Jiangxi and the New Model of “Five Floors +Basement” for Prospecting[J].Acta Geologica Sinica,2008,82(7):880-887.
[15] 韦龙明,林锦富,李文铅,等.广东梅子窝钨矿“五层楼”叠加现象探讨[J].地质学报,2008,82(7):888-893.Wei Longming,Lin Jinfu,Li Wenqian,et al.Discussion on the Stacking Phenomenon of “Five Storeys” in Meiziwo Tungsten Mine of Guangdong[J].Journal of Geology,2008,82(7):888-893.
[16] 江西省地质矿产勘查开发局.中国矿产地质志:江西卷[M].北京:地质出版社,2015:386-491.Jiangxi Bureau of Geological and Mineral Exploration and Development.Geology of Mineral Resources in China:Volume of Jiangxi[M].Beijing:Geological Publishing House,2015:386-491.
[17] 杨明桂,曾载淋,赖志坚,等.江西钨矿床“多位一体”模式与成矿热动力过程[J].地质力学学报,2008,14(3):241-250.Yang Minggui,Zeng Zailin,Lai Zhijian,et al.The“Multi-Position in One” Mode and Dynamic Mechanism of Mineralization of Tungsten Deposits in Jiangxi[J].Journal of Geomechanics,2008,14(3):241-250.
① 湖北省地质局区域地质测量队.1∶20万通山幅区域矿产报告.武汉:湖北省地质局,1966.
[2] 胡正华,楼法生,李永明,等.江西武宁县东坪钨矿床中与成矿有关的岩浆岩年代学、地球化学及岩石成因[J].地球科学,2018,43(10):243-263.Hu Zhenghua,Lou Fasheng,Li Yongming,et al.Geochronology,Geochemistry and Petrogenesis of Magmatic Rocks Associated with Mineralization in Dongping Tungsten Deposit of Wuning in Jiangxi[J].Geoscience,2018,43(10):243-263.
[3] 王登红,陈郑辉,黄国成,等.华南“南钨北扩”、“东钨西扩”及其找矿方向探讨[J].大地构造与成矿学,2012,36(3):322-329.Wang Denghong,Chen Zhenghui,Huang Guocheng,et al.Discussion on “South Tungsten Expansion”and “East Tungsten West Expansion” in Southern China and Its Prospecting Direction[J].Geotectonics and Metallogeny,2012,36(3):322-329.
[4] 胡正华.赣东北朱溪钨多金属矿床形成条件与成矿规律[D].成都:成都理工大学,2015:12-185.Hu Zhenghua.The Formation Conditions and Matallogenic Regularity of Zhuxi Tungsten Polymentallic Deposit in Northeast of Jiangxi Province[D].Chengdu:Chengdu University of Technology,2015:12-185.
[5] 李吉明,楼法生,李永明,等.江西省武宁县东坪铜多金属矿(扩深)资源储量核实报告[R].南昌:江西省地质调查研究院,2016.Li Jiming,Lou Fasheng,Li Yongming,et al.Verification Report on Resources and Reserves of Dongping Copper Polymetallic Mine in Wuning County,Jiangxi Province [R].Nanchang:Jiangxi Geological Survey Research Institute,2016.
[6] 江西省地质矿产勘查开发局.中国区域地质志:江西志[M].北京:地质出版社,2017:827-863.Jiangxi Bureau of Geological and Mineral Exploration and Development.The Regional Geological of China:Jiangxi Province[M].Beijing:Geological Publishing House,2017:827-863.
[7] 李永明,李吉明.赣北东坪钨矿区二云母花岗岩地球化学特征及其构造动力学意义[J].中国钨业,2018,33(2):1-9.Li Yongming,Li Jiming.Geochemical Characteristics and Tectonic Dynamics Significance of Dimica Granite in Dongping Tungsten Mine,Northern Jiangxi Province[J].China Tungsten Industry,2018,33(2):1-9.
[8] 晏超,陈郑辉,杨立强,等.赣北东坪铜钨多金属矿点岩体锆石U-Pb定年及其地质意义[[J].中国钨业,2017,32 (3):1-11.Yan Chao,Chen Zhenghui,Yang Liqiang,et al.Zircon U-Pb Dating of Rock Mass and Its Geological Significance of Dongping Copper Tungsten Polymetallic Ore Point in North Jiangxi[J].China Tungsten Industry,2017,32 (3):1-11.
[9] 杨明桂,王发宁,曾勇,等.江西北部金属成矿地质特征[M].北京:中国大地出版社,2004.Yang Minggui,Wang Faning,Zeng Yong,et al.Geological Characteristics of Northern Metal Mineralization in Jiangxi[M].Beijing:China Land Press,2004.
[10] 王登红,唐菊兴,应立娟,等.“五层楼+地下室”找矿模型的适用性及其对深部找矿的意义[J].吉林大学学报(地球科学版),2010,40(4):733-738.Wang Denghong,Tang Juxing,Ying Lijuan,et al.Application of “Five Levels+Basement” Model for Prospecting Deposits Into Depth[J].Journal of Jilin University(Earth Science Edition),2010,40(4):733-738.
[11] 黄修保,余忠珍,邹国庆,等.赣西北地区中元古代双桥山群沉积特征[J].地质通报,2003,22(1):43-49.Huang Xiubao,Yu Zhongzhen,Zou Guoqing,et al.Sedimentary Characteristics of Mesoproterozoic Shuangqiaoshan Group in Northwest Jiangxi[J].Geological Bulletin,2003,22(1):43-49.
[12] 张思明.江西省大吉山钨矿床的矿物学研究及矿床特征[D].北京:中国地质大学(北京),2012.Zhang Siming.Mineralogical Study and Characteristics of Dajishan Tungsten Deposit,Jiangxi Province [D].Beijing :China University of Geosciences (Beijing),2012.
[13] 彭忠,肖翔.西藏察隅县那阿多金属矿矿石特征研究及其意义[J].四川地质学报,2013,33(5):13-17.Peng Zhong,Xiao Xiang.Study on Ore Characteristics of Naa Polymetallic Mine in Chayu County,Tibet and Its Significance[J].Acta Geologica Sichuan,2013,33(5):13-17.
[14] 许建祥,曾载淋,王登红,等.赣南钨矿新类型及“五层楼+地下室”找矿模型[J].地质学报,2008,82(7):880-887.Xu Jianxiang,Zeng Zailin,Wang Denghong,et al.A New Type of Tungsten Deposit in Southern Jiangxi and the New Model of “Five Floors +Basement” for Prospecting[J].Acta Geologica Sinica,2008,82(7):880-887.
[15] 韦龙明,林锦富,李文铅,等.广东梅子窝钨矿“五层楼”叠加现象探讨[J].地质学报,2008,82(7):888-893.Wei Longming,Lin Jinfu,Li Wenqian,et al.Discussion on the Stacking Phenomenon of “Five Storeys” in Meiziwo Tungsten Mine of Guangdong[J].Journal of Geology,2008,82(7):888-893.
[16] 江西省地质矿产勘查开发局.中国矿产地质志:江西卷[M].北京:地质出版社,2015:386-491.Jiangxi Bureau of Geological and Mineral Exploration and Development.Geology of Mineral Resources in China:Volume of Jiangxi[M].Beijing:Geological Publishing House,2015:386-491.
[17] 杨明桂,曾载淋,赖志坚,等.江西钨矿床“多位一体”模式与成矿热动力过程[J].地质力学学报,2008,14(3):241-250.Yang Minggui,Zeng Zailin,Lai Zhijian,et al.The“Multi-Position in One” Mode and Dynamic Mechanism of Mineralization of Tungsten Deposits in Jiangxi[J].Journal of Geomechanics,2008,14(3):241-250.
① 湖北省地质局区域地质测量队.1∶20万通山幅区域矿产报告.武汉:湖北省地质局,1966.
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