赣西蒙山地区石竹山超大型硅灰石矿床地质特征及找矿意义
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摘要
江西省新余市石竹山硅灰石矿床硅灰石矿物量5 400余万t,相当于54个大型硅灰石矿床资源量规模,硅灰石矿物含量平均约60%。Ⅱ、Ⅷ号矿体为石竹矿区内主矿体。Ⅱ号矿体走向延伸超过4 800 m,倾向延深超过1300m,平均厚度14.14m,硅灰石平均含量60.86%,矿石类型以硅灰石-石英-方解石型(Ⅱ号矿体)为主。Ⅷ号矿体走向延伸超1 000 m,倾向延深超过600 m;平均厚度14.67 m;硅灰石矿物量600余万吨,硅灰石平均含量61.80%,矿石类型主要为硅灰石-透辉石型。蒙山地区"岩体+碳酸盐岩+构造裂隙+盖层"组合的矽卡岩与矽卡岩化大理岩化蚀变带是寻找硅灰石矿体的重要区域;石竹山—库里一带中深部具有寻找锡铜钨多金属矿的较好潜能。
The Shizhushan superlarge wollastonite deposit in Xinyu of Jiangxi Province contains about 5 400 tons of wollastonite with an average content about 60%. The No. II and VIII orebodies are the main orebodies of the Shuzhushan deposit. The No.II orebody extends more than 4 800 m along its strike and more than 1 300 m towards the trend, with an average thickness about 14.14 m. The major ore type is wollastonite-quartz-calcite(No.II orebody). The No. VIII orebody stretches more than 1 000 m along the strike and 600 m toward its trend, with an average thickness of 14.67 m. The amount of wollastonite in No. VIII orebody is about 600 tons with an average content about 61.80%, and the main ore type being wollastonite-diopside. The "rock mass + carbonate rock + structure fissure + lithocap" assemblage of skarn plus skarnization and marmorization area is the most important exploration target, and this shows a good potential for exploration of tin, copper, and tungsten polymetallic deposits in the depth of the Shizhushan–Kuli area.
The Shizhushan superlarge wollastonite deposit in Xinyu of Jiangxi Province contains about 5 400 tons of wollastonite with an average content about 60%. The No. II and VIII orebodies are the main orebodies of the Shuzhushan deposit. The No.II orebody extends more than 4 800 m along its strike and more than 1 300 m towards the trend, with an average thickness about 14.14 m. The major ore type is wollastonite-quartz-calcite(No.II orebody). The No. VIII orebody stretches more than 1 000 m along the strike and 600 m toward its trend, with an average thickness of 14.67 m. The amount of wollastonite in No. VIII orebody is about 600 tons with an average content about 61.80%, and the main ore type being wollastonite-diopside. The "rock mass + carbonate rock + structure fissure + lithocap" assemblage of skarn plus skarnization and marmorization area is the most important exploration target, and this shows a good potential for exploration of tin, copper, and tungsten polymetallic deposits in the depth of the Shizhushan–Kuli area.
引文
胡正华,唐菊兴,丁枫,郑文宝,邓世林,杨毅,张志,王艺云,林彬,丁帅.2011.西藏甲玛铜多金属矿富银矿体地质特征、银赋存状态及富集机理研究[J].地球学报,32(6):668-680.
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唐菊兴,王勤,杨欢欢,高昕,张泽斌,邹兵.2017.西藏斑岩-矽卡岩-浅成低温热液铜多金属矿成矿作用、勘查方向与资源潜力[J].地球学报,38(5):571-613.
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TANG Ju-xing,WANG Qin,YANG Huan-huan,GAO Xin,ZHANG Ze-bin,ZOU Bing.2017.Mineralization,Exploration and Resource Potential of Porphyry-skarn-epithermal Copper Polymetallic Deposits in Tibet[J].Acta Geoscientica Sinica,38(5):571-613(in Chinese with English abstract).
WANG Xian-guang,LIU Jian-guang,ZHAO Shuo,QIU Ping.2014.New Discovery of the Zhuxi Tungsten-Copper Deposit,Jiangxi Province[J].Acta Geologica Sinica,88(z2):119.
WANG Xian-guang,LIU Zhan-qing,LIU Shan-bao,WANGCheng-hui,LIU Jian-guang,WAN Hao-zhang,CHENGuo-hua,ZHANG Shu-de,LIU Xiao-lin.2015.LA-ICP-MSZircon 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).
WANG Xian-guang,ZHOU Xian-xu,MA Zhen-xing,ZHANTian-wei,LI Yong-ming,XIA Zhong-zhi,LI Yan-hong,HULang-ming,ZENG Jia-xi.2014.Progresses and prospecting in the deep and periphery of the Wushan copper deposit in the Jiurui area[J].Journal of East China Institute of Technology(Natural Science),37(4):379-386(in Chinese with English abstract).
ZHONG Yu-fang,MA Chang-qian,SHE Zhen-bing,XU Hai-jin,WANG Shi-ming,WANG Lian-xun.2011.U-Pb-Hf Isotope of Zircons,Geochemistry and Genesis of Mengshan Granitoids in Northwestern Jiangxi Province[J].Earth Science(Journal of China University of Geosciences),36(4):703-720(in Chinese with English abstract).
胡正华,王先广,李永明,刘善宝,张家菁,陈毓川,曾庆权,王艺云,蒋金明,聂龙敏,雷天浩,胡文洁,张芳荣,吴施金,沙珉,龚良信,谢瑞丰,文亮先.2015.长江中下游九瑞矿集区宝山铜多金属矿床辉钼矿Re-Os年龄及其地质意义[J].中国地质,42(2):585-596.
唐菊兴,王勤,杨欢欢,高昕,张泽斌,邹兵.2017.西藏斑岩-矽卡岩-浅成低温热液铜多金属矿成矿作用、勘查方向与资源潜力[J].地球学报,38(5):571-613.
王先广,刘战庆,刘善宝,王成辉,刘建光,万浩章,陈国华,张树德,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.
王先广,周贤旭,马振兴,詹天卫,李永明,夏中智,李艳红,胡朗明,曾甲晰.2014.九瑞地区武山铜矿外围深部找矿进展与方向[J].东华理工大学学报(自然科学版),37(4):379-386.
钟玉芳,马昌前,佘振兵,续海金,王世明,王连训.2011.赣西北蒙山岩体的锆石U-Pb-Hf、地球化学特征及成因[J].地球科学(中国地质大学学报),36(4):703-720.
HU Zheng-hua,TANG Ju-xing,DING Feng,ZHENG Wen-bao,DENG Shi-lin,YANG Yi,ZHANG Zhi,WANG Yi-yun,LINBin,DING Shuai.2011.A Study of Features,Modes of Occurrence and Enrichment Mechanism of Silver-rich Ore Bodies in the Jiama Copper-Polymetallic Deposit of Tibet[J].Acta Geoscientica Sinica,32(6):668-680(in Chinese with English abstract).
HU Zheng-hua,WANG Xian-guang,LI Yong-ming,LIU Shan-bao,ZHANG Jia-jing,CHEN Yu-chuan,ZENG Qing-quan,WANGYi-yun,JIANG Jin-ming,NIE Long-min,LEI Tian-hao,HUWen-jie,ZHANG Fang-rong,WU Shi-jin,SHA Min,GONGLiang-xin,XIE Rui-feng,WEN Liang-xian.2015.Re-Os age of molybdenite from the Baoshan copper polymetallic deposit in the Jiurui ore concentration area along the middle-lower Yangtze River region and its geological significance[J].Geology in China,42(2):585-596(in Chinese with English abstract).
TANG Ju-xing,WANG Qin,YANG Huan-huan,GAO Xin,ZHANG Ze-bin,ZOU Bing.2017.Mineralization,Exploration and Resource Potential of Porphyry-skarn-epithermal Copper Polymetallic Deposits in Tibet[J].Acta Geoscientica Sinica,38(5):571-613(in Chinese with English abstract).
WANG Xian-guang,LIU Jian-guang,ZHAO Shuo,QIU Ping.2014.New Discovery of the Zhuxi Tungsten-Copper Deposit,Jiangxi Province[J].Acta Geologica Sinica,88(z2):119.
WANG Xian-guang,LIU Zhan-qing,LIU Shan-bao,WANGCheng-hui,LIU Jian-guang,WAN Hao-zhang,CHENGuo-hua,ZHANG Shu-de,LIU Xiao-lin.2015.LA-ICP-MSZircon 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).
WANG Xian-guang,ZHOU Xian-xu,MA Zhen-xing,ZHANTian-wei,LI Yong-ming,XIA Zhong-zhi,LI Yan-hong,HULang-ming,ZENG Jia-xi.2014.Progresses and prospecting in the deep and periphery of the Wushan copper deposit in the Jiurui area[J].Journal of East China Institute of Technology(Natural Science),37(4):379-386(in Chinese with English abstract).
ZHONG Yu-fang,MA Chang-qian,SHE Zhen-bing,XU Hai-jin,WANG Shi-ming,WANG Lian-xun.2011.U-Pb-Hf Isotope of Zircons,Geochemistry and Genesis of Mengshan Granitoids in Northwestern Jiangxi Province[J].Earth Science(Journal of China University of Geosciences),36(4):703-720(in Chinese with English abstract).