赣北发现“五层楼”式石英脉型黑钨矿矿床——东坪黑钨矿矿床的发现及其地质意义
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摘要
据江西省武宁县东坪矿床2015年最新勘查成果,初步认为此矿床是典型的"五层楼式"石英脉型黑钨矿床。矿床规模巨大,成矿岩体为早白垩世黑云母二长花岗岩,矿区蚀变以脉状硅化为主,硅化脉垂向上自下发育线脉带→细脉带→薄脉带→大脉带→尖灭带,其中前四个石英脉带均产出于外接触带双桥山群,巨脉带-尖灭带发育于岩体中。金属矿物以黑钨矿、黄铜矿为主,次为磁黄铁矿、闪锌矿、毒砂、辉银矿、辉铋矿、黄铁矿、少量辉铜矿、白钨矿、蓝铜矿、褐铁矿等。综合研究表明,推断深部岩体与围岩的内接触带存在似层状蚀变花岗岩型钨铜矿体,同时矿区外围该类矿床的找矿潜力大。该矿床的发现结束了赣北至今没有发现典型"五层楼"式石英脉型黑钨矿床的历史,也是构成了"南钨北扩"的重要矿床,对赣北地区找矿突破具有极其重要的指导意义。
The surveying results obtained in the Dongping deposit of Wuning County in Jiangxi Province shows that the deposit is a typical "five-storey" style quartz vein type tungsten deposit. The scale of the deposit is very huge, with Early Cretaceous biotite adamellite being the mineralized body, and veined silicification being the main alteration in the ore district. Vertically, there is the zoning of zone→veinlets zone →thin vein zone→thick vein zone→pinch out zone in upward succession, and the first four quartz veins all occur in the outer contact zone of Shuangqiaoshan Group, with the giant vein pinch out zone developed in the rock. Wolframite and chalcopyrite are the mainly metallic minerals, whereas minor minerals include pyrrhotite, sphalerite, farsenopyrite, argentite, arsenic sulfide silver, bismuthinite, bismuthinite sulfur, and pyrite, with a small amount of chalcocite, scheelite, azurite and limonite. Comprehensive studies have shown that there exists a big potential of bedded mineral alteration granite type tungsten orebody between deep rocks and the inner contact zone of the rock, and that there might exist a similar deposit on the periphery of the ore district. The discovery of this ore deposit ended the history that there was no typical "five-storey" style quartz vein wolframite deposits in northern Jiangxi, and it is also an important ore deposit extending from the south to the north. The discovery of this ore deposit has an extremely important significance for prospecting breakthrough in northern Jiangxi.
The surveying results obtained in the Dongping deposit of Wuning County in Jiangxi Province shows that the deposit is a typical "five-storey" style quartz vein type tungsten deposit. The scale of the deposit is very huge, with Early Cretaceous biotite adamellite being the mineralized body, and veined silicification being the main alteration in the ore district. Vertically, there is the zoning of zone→veinlets zone →thin vein zone→thick vein zone→pinch out zone in upward succession, and the first four quartz veins all occur in the outer contact zone of Shuangqiaoshan Group, with the giant vein pinch out zone developed in the rock. Wolframite and chalcopyrite are the mainly metallic minerals, whereas minor minerals include pyrrhotite, sphalerite, farsenopyrite, argentite, arsenic sulfide silver, bismuthinite, bismuthinite sulfur, and pyrite, with a small amount of chalcocite, scheelite, azurite and limonite. Comprehensive studies have shown that there exists a big potential of bedded mineral alteration granite type tungsten orebody between deep rocks and the inner contact zone of the rock, and that there might exist a similar deposit on the periphery of the ore district. The discovery of this ore deposit ended the history that there was no typical "five-storey" style quartz vein wolframite deposits in northern Jiangxi, and it is also an important ore deposit extending from the south to the north. The discovery of this ore deposit has an extremely important significance for prospecting breakthrough in northern Jiangxi.
引文
胡正华,李吉明,楼法生,钟起泓,聂龙敏,龚良信,蒋金明,李倩.2016.赣北东坪钨矿床成矿岩浆岩形成年代、地球化学及成因研究[J].岩石学报,32:(待刊).
黄兰椿,蒋少涌.2012.江西大湖塘钨矿床似斑状白云母花岗岩锆石U-Pb年代学、地球化学及成因研究[J].岩石学报,28(12):3887-3900.
满发胜,王小松.1988.阳储岭斑岩型钨钼矿床同位素地质年代学研究[J].矿产与地质,2(1):61-67.
王登红,唐菊兴,应立娟,陈郑辉,许建祥,张家菁,李水如,曾载淋.2010.“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,40(4):733-738.
王先广,刘战庆,刘善宝,王成辉,刘建光,万浩章,陈国华,张德,刘小林.2015.江西朱溪铜钨矿细粒花岗岩LA-ICPMS锆石U-Pb定年和岩石地球化学研究[J].岩矿测试,34(5):592-599.
韦龙明,林锦富,李文铅,汪劲草,朱文凤.2008.广东梅子窝钨矿“五层搂”叠加现象探讨[J].地质学报,82(7):888-893.
项新葵,王朋,孙德明,钟波.2013.赣北石门寺钨多金属矿床同位素地球化学研究[J].地球学报,34(3):263-271.
许建祥,曾载淋,王登红,陈郑辉,刘善宝,王成辉,应立娟.2008.赣南钨矿新类型及“五层楼+地下室”找矿模型[J].地质学报,82(7):880-887.
杨明桂,曾载淋,赖志坚,吴新华.2008.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,14(3):241-250.
张家菁,梅玉萍,王登红,李华芹.2008.赣北香炉山白钨矿床的同位素年代学研究及其地质意义[J].地质学报,82(7):927-931.
HU Zheng-hua,LI Ji-ming,LOU Fa-sheng,ZHONG Qi-hong,NIELong-min,GONG Liang-xin,JIANG Jin-ming,LI Qian.2016.The forming times of the Ore-forming magmatic rocks,geochemistry and petrogenesis of the Dongping Wolframite Deposit in Northern Jiangxi[J].Acta Petrologica Sinica,32:(in Press)(in Chinese with English abstract).
HUANG Lan-chun,JIANG Shao-yong.2012.Zircon U-Pb geochronology,geochemistry and petrogenesis of the porphyric-like muscovite granite in the Dahutang tungsten deposit,Jiangxi Province[J].Acta Petrologica Sinica,28(12):3887-3900(in Chinese with English abstract).
MAN Fa-sheng,WANG Xiao-song.1988.Study on the Porphyry Type Isotopic Geochronology of Yangchuling of Tungsten and Molybdenum Deposit[J].Mineral Resources and Geology,2(1):61-67(in Chinese with English abstract).
WANG Deng-hong,TANG Ju-xing,YING Li-juan,CHEN Zheng-hui,XU Jian-xiang,ZHANG Jia-jing,LI Shui-ru,ZENG Zai-lin.2010Application of“five levels+basement”model for prospecting deposits into depth[J].Journal of Jilin University,40(4):733-738(in Chinese with English abstract).
WANG Xian-guang,LIU Zhan-qing,LIU Shan-bao,WANGCheng-hui,LIU Jian-guang,WAN Hao-zhang,CHEN Guo-hua,ZHANG DE,LIU Xiao-lin.2015.LA-ICPMS Zircon U-Pb Dating and Petrologic Geochemistry of Fine-grained Granite from Zhuxi Cu-W Deposit,Jiangxi Province and Its Geological Significance[J].Rock and Mineral Analysis,34(5):592-599(in Chinese with English abstract).
WEI Long-ming,LIN Jin-fu,LI Wen-qian,WANG Jing-cao,ZHUWen-feng.2008.Discussion on“five stored”superposed model of Meiziwo tungsten deposit,Guangdong[J].Acta Geologica Sinica,82(7):888-893(in Chinese with English abstract).
XIANG Xin-kui,WANG Peng,SUN De-ming,ZHONG Bo.2013.Isotopic Geochemical Characteristics of the Shimensi Tungsten-polymetallic Deposit in Northern Jiangxi Province[J].Acta Geoscientica Sinica,34(3):263-271(in Chinese with English abstract).
XU Jian-xiang,ZENG Zai-lin,WANG Deng-hong,CHENZheng-hui,YING Li-juan.2008.A new type of tungsten deposit in southern Jiangxi and the new model of“Five floors+Basement”for prospecting[J].Acta Geologica Sinica,82(7):880-887(in Chinese with English abstract).
XU Jian-xiang,ZENG Zai-lin,WANG Deng-hong,LI Hua-qin.2008.A new type f tungsten deposits in Southern Jiangxi and the new model o“ffive loors+basement”for prospecting[J].Acta Geologica Sinica,82(7):880-887(in Chinese with English abstract).
YANG Ming-gui,ZENG Zai-lin,LAI Zhi-jian,WU Xin-hua.2008.The“Multi-position in one”mode and dynamic mechanism of mineralization of tungsten deposits in Jiangxi[J].Journal of Geomechanics,14(3):241-250(in Chinese with English abstract).
黄兰椿,蒋少涌.2012.江西大湖塘钨矿床似斑状白云母花岗岩锆石U-Pb年代学、地球化学及成因研究[J].岩石学报,28(12):3887-3900.
满发胜,王小松.1988.阳储岭斑岩型钨钼矿床同位素地质年代学研究[J].矿产与地质,2(1):61-67.
王登红,唐菊兴,应立娟,陈郑辉,许建祥,张家菁,李水如,曾载淋.2010.“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,40(4):733-738.
王先广,刘战庆,刘善宝,王成辉,刘建光,万浩章,陈国华,张德,刘小林.2015.江西朱溪铜钨矿细粒花岗岩LA-ICPMS锆石U-Pb定年和岩石地球化学研究[J].岩矿测试,34(5):592-599.
韦龙明,林锦富,李文铅,汪劲草,朱文凤.2008.广东梅子窝钨矿“五层搂”叠加现象探讨[J].地质学报,82(7):888-893.
项新葵,王朋,孙德明,钟波.2013.赣北石门寺钨多金属矿床同位素地球化学研究[J].地球学报,34(3):263-271.
许建祥,曾载淋,王登红,陈郑辉,刘善宝,王成辉,应立娟.2008.赣南钨矿新类型及“五层楼+地下室”找矿模型[J].地质学报,82(7):880-887.
杨明桂,曾载淋,赖志坚,吴新华.2008.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,14(3):241-250.
张家菁,梅玉萍,王登红,李华芹.2008.赣北香炉山白钨矿床的同位素年代学研究及其地质意义[J].地质学报,82(7):927-931.
HU Zheng-hua,LI Ji-ming,LOU Fa-sheng,ZHONG Qi-hong,NIELong-min,GONG Liang-xin,JIANG Jin-ming,LI Qian.2016.The forming times of the Ore-forming magmatic rocks,geochemistry and petrogenesis of the Dongping Wolframite Deposit in Northern Jiangxi[J].Acta Petrologica Sinica,32:(in Press)(in Chinese with English abstract).
HUANG Lan-chun,JIANG Shao-yong.2012.Zircon U-Pb geochronology,geochemistry and petrogenesis of the porphyric-like muscovite granite in the Dahutang tungsten deposit,Jiangxi Province[J].Acta Petrologica Sinica,28(12):3887-3900(in Chinese with English abstract).
MAN Fa-sheng,WANG Xiao-song.1988.Study on the Porphyry Type Isotopic Geochronology of Yangchuling of Tungsten and Molybdenum Deposit[J].Mineral Resources and Geology,2(1):61-67(in Chinese with English abstract).
WANG Deng-hong,TANG Ju-xing,YING Li-juan,CHEN Zheng-hui,XU Jian-xiang,ZHANG Jia-jing,LI Shui-ru,ZENG Zai-lin.2010Application of“five levels+basement”model for prospecting deposits into depth[J].Journal of Jilin University,40(4):733-738(in Chinese with English abstract).
WANG Xian-guang,LIU Zhan-qing,LIU Shan-bao,WANGCheng-hui,LIU Jian-guang,WAN Hao-zhang,CHEN Guo-hua,ZHANG DE,LIU Xiao-lin.2015.LA-ICPMS Zircon U-Pb Dating and Petrologic Geochemistry of Fine-grained Granite from Zhuxi Cu-W Deposit,Jiangxi Province and Its Geological Significance[J].Rock and Mineral Analysis,34(5):592-599(in Chinese with English abstract).
WEI Long-ming,LIN Jin-fu,LI Wen-qian,WANG Jing-cao,ZHUWen-feng.2008.Discussion on“five stored”superposed model of Meiziwo tungsten deposit,Guangdong[J].Acta Geologica Sinica,82(7):888-893(in Chinese with English abstract).
XIANG Xin-kui,WANG Peng,SUN De-ming,ZHONG Bo.2013.Isotopic Geochemical Characteristics of the Shimensi Tungsten-polymetallic Deposit in Northern Jiangxi Province[J].Acta Geoscientica Sinica,34(3):263-271(in Chinese with English abstract).
XU Jian-xiang,ZENG Zai-lin,WANG Deng-hong,CHENZheng-hui,YING Li-juan.2008.A new type of tungsten deposit in southern Jiangxi and the new model of“Five floors+Basement”for prospecting[J].Acta Geologica Sinica,82(7):880-887(in Chinese with English abstract).
XU Jian-xiang,ZENG Zai-lin,WANG Deng-hong,LI Hua-qin.2008.A new type f tungsten deposits in Southern Jiangxi and the new model o“ffive loors+basement”for prospecting[J].Acta Geologica Sinica,82(7):880-887(in Chinese with English abstract).
YANG Ming-gui,ZENG Zai-lin,LAI Zhi-jian,WU Xin-hua.2008.The“Multi-position in one”mode and dynamic mechanism of mineralization of tungsten deposits in Jiangxi[J].Journal of Geomechanics,14(3):241-250(in Chinese with English abstract).