Inclusion features and geological significance of the Tonglüshan skarn-type copper-iron (gold) deposit in Daye, Hubei
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摘要: 湖北铜绿山铜铁（金）矿床是长江中下游地区典型的矽卡岩型矿床。为了探究其矽卡岩的成因，进行了包裹体的岩相学观察，显微测温和激光拉曼分析。研究结果表明，铜绿山矿床流体包裹体的均一温度为180~700℃，盐度w（NaCleqv）为1.74%~55.7%；从矽卡岩期到石英—硫化物期，成矿流体从高温、高盐度向低温、低盐度演化；激光拉曼显示熔融包裹体中包含石榴石、方解石、赤铁矿和水。综合包裹体的岩相学及相组成特征，铜绿山矿床的早期矽卡岩应为岩浆成因。Abstract: The Tonglüshan copper-iron (gold) deposit is a typical skarn deposit in the middle and lower reaches of the Yangtze River in Hubei.In order to find the origin of skarn, the petrographic observation, microscopic temperature measurement and laser Raman analysis of the inclusions were carried out.The result shows that the uniform temperature of the fluid inclusions in the deposit ranges from 180 to 700℃, and the salinity ranges from 1.74% to 55.7% NaCleqv. From the skarn period to the quartz-sulfide period, the ore-forming fluids are from high temperature and high salinity to low temperature and low salinity.The result of laser Raman measurement shows that the melt inclusions contain garnet, calcite, hematite and water.Based on the petrography and petrofacies composition characteristics of inclusions, the early skarn of Tonglüshan deposit should be of magmatic origin.
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Key words:
- skarn deposit /
- melt inclusion /
- laser Raman /
- magma skarn
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图 1 鄂东南地区地质及矿产分布简图(底图据文献[18]修改)
Figure 1. Schematic diagram of geological and mineral distribution in southeastern Hubei
图 3 铜绿山矿床手标本照片和显微照片
a.黄铁矿压碎结构；b.半自形粒状黄铁矿；c.黄铜矿和斑铜矿交代黄铁矿；d.绿帘石交代石榴石；e.放射状透闪石(正交)；f.金云母化；g.网脉状磁铁矿矿石；h.浸染状黄铜矿矿石；i.赤铁矿磁铁矿矿石；j.矽卡岩化；k.钾-硅-黄铁矿化；l.碳酸盐化
Figure 3. Ore photographs and microphotographs of Tonglüshan deposit
图 5 铜绿山矿床0号勘探线地质剖面图
Figure 5. Geological section of No.0 exploration line of Tonglüshan deposit
图 6 铜绿山矿床包裹体类型图
a，b.石榴石中的熔融包裹体；c.石榴石中的流体-熔体包裹体；d.方解石中的气液两相包裹体；e.石英中的含CO2三相包裹体；f.石英中的含子矿物包裹体。C.结晶质；Cex.全消光的物质；Hm.赤铁矿；Fe.铁质；D.子矿物；VCO2.气相CO2；LCO2.液相CO2；V.气体；L，LH2O.水
Figure 6. Types of inclusions in Tonglüshan deposit
图 7 铜绿山矿床熔融包裹体和流体-熔体包裹体图
a，b.流体-熔体包裹体；c~i.熔融包裹体；C.结晶质；Cex.全消光的物质；Fe.铁质；L.水；V.气体
Figure 7. Melt inclusions and fluid-melt inclusions of Tonglüshan deposit
图 8 铜绿山矿床流体包裹体均一温度(a)和盐度(b)直方图
Figure 8. Homogeneous temperature histogram of fluid inclusions in Tonglüshan deposit
图 9 铜绿山矿床石榴石中包裹体激光拉曼谱线(Gal.石榴石；Cal.方解石; Hm.赤铁石)
Figure 9. Laser Raman line of inclusions in garnet in Tonglüshan deposit
图 10 铜绿山矿床流体包裹体的均一温度与盐度散点图
Figure 10. Homogeneous temperature and salinity scatter plot of fluid inclusions in Tonglüshan deposit
表 1 铜绿山矿床流体包裹体显微测温结果
Table 1. Microscopic temperature measurement results of fluid inclusions in Tonglüshan deposit
成矿阶段 主矿物 包裹体类型 部分均一温度/℃ 均一温度/℃ 盐度w(NaCleqv)/% 范围 均值 范围 均值 早矽卡岩阶段 石榴石 气液两相包裹体 457.4~700 577.39 6.01~11.93 8.96 含子矿物包裹体 478 575 55.74 晚矽卡岩阶段 绿帘石 气液两相包裹体 401.6~550 504.06 6.59~10.86 8.88 含子矿物包裹体 393.3~424.8 517.8~550 47.02~49.47 47.53 早期硫化物阶段 石英 气液两相包裹体 215.1~425.5 321.77 6.3~12.27 8.92 含子矿物包裹体 266.8~320.8 360.5~431.1 42.93~50.17 46.03 晚期硫化物阶段 方解石 气液两相包裹体 185.3~317.7 249.47 1.74~6.88 4.11 
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[1] 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. [2] Pan Y, Dong P.The Lower Changjiang (Yangzi/Yangtze River) metallogenic belt, east Central China:Intrusion- and wall rock-hosted Cu-Fe-Au, Mo, Zn, Pb, Ag deposits[J].Ore Geology Reviews, 1999, 15(4):177-242. doi: 10.1016/S0169-1368(99)00022-0 [3] 谢桂青, 毛景文, 李瑞玲, 等.鄂东南地区Cu-Au-Mo-(W)矿床的成矿时代及其成矿地球动力学背景探讨:辉钼矿Re-Os同位素年龄[J].矿床地质, 2006, 25(1):43-52. http://d.wanfangdata.com.cn/Periodical/kcdz200601006 [4] 凌其聪, 程惠兰, 陈邦国.铜陵东狮子山铜矿床地质特征及成岩成矿机理研究[J].矿床地质, 1998, 17(2):63-69. http://www.cqvip.com/Main/Detail.aspx?id=3006654 [5] 邓晋福, 戴圣潜, 赵海玲, 等.铜陵Cu-Au(Ag)成矿区岩浆-流体-成矿系统和亚系统的识别[J].矿床地质, 2002, 21(4):317-322. http://www.cqvip.com/Main/Detail.aspx?id=7106919 [6] 赵劲松, 赵斌, 李兆麟.大冶铁矿床夕卡岩矿物中熔融包裹体的发现及其地质地球化学意义[J].地球化学, 2000, 29(5):500-503. http://www.cqvip.com/Main/Detail.aspx?id=4673717 [7] 赵斌, 赵劲松, 张重泽, 等.大冶-九江地区Fe, Cu(Au)和Au(Cu)矿床夕卡岩矿物里的熔融包裹体特征[J].中国科学:地球科学, 2002, 32(7):550-561. http://d.wanfangdata.com.cn/Periodical/zgkx-cd200207003 [8] 郭欣然, 高顺宝, 郑有业, 等.西藏龙根铅锌矿床矽卡岩矿物学特征及其地质意义[J].地质科技情报, 2019, 38(5):31-45. http://www.cqvip.com/QK/93477A/20195/7003017795.html [9] Zhao Y.Some new important advances in study of skarn deposits[J].Mineral Deposits, 2002, 21(2):113-115. http://en.cnki.com.cn/Article_en/CJFDTOTAL-KCDZ200202002.htm [10] Mao J, Chen M, Yuan S.Geological characteristics of the Qinhang (or Shihang) metallogenic belt in South China and spatialtemporal distribution regularity of mineral deposits.[J].Acta Geologica Sinica, 2011, 85(5):636-658. http://en.cnki.com.cn/Article_en/CJFDTOTAL-DZXE201105006.htm [11] 何迪, 谭俊, 刘晓阳, 等.湖北大冶铜山口斑岩-矽卡岩型铜钼矿床包裹体特征及流体演化意义[J].地质科技通报, 2020, 39(5):97-108. http://dzkjqb.cug.edu.cn/CN/abstract/abstract10055.shtml [12] 刘治国.铜绿山铜铁矿床地质特征及岩浆岩与成矿关系探讨[J].化工矿产地质, 2002, 24(4):207-214. http://www.cnki.com.cn/Article/CJFD2002-HGKC200204002.htm [13] 梅玉萍, 李华芹, 陈富文.鄂东铜绿山矿区石英正长闪长玢岩锆石SHRIMP U-Pb定年及其地质意义[J].地球学报, 2008, 29(6):805-810. http://www.cnki.com.cn/Article/CJFDTotal-DQXB200806028.htm [14] 赵海杰, 谢桂青, 魏克涛, 等.湖北大冶铜绿山铜铁矿床夕卡岩矿物学及碳氧硫同位素特征[J].地质论评, 2012, 58(2):379-395. http://d.wanfangdata.com.cn/Periodical/OA000003557 [15] 赵海杰, 毛景文, 向君峰, 等.湖北铜绿山矿床石英闪长岩的矿物学及Sr-Nd-Pb同位素特征[J].岩石学报, 2010, 26(3):768-784. http://d.wanfangdata.com.cn/Periodical/ysxb98201003011 [16] 赵一鸣, 林文蔚, 毕承思, 等.中国矽卡岩矿床[M].北京:地质出版社, 1990. [17] Einaudi M T, Burt D M.Introduction:Terminology, classification, and composition of skarn deposits[J].Economic Geology, 1982, 77(4):745-754. doi: 10.2113/gsecongeo.77.4.745 [18] 王蝶, 卢焕章, 单强.岩浆熔体包裹体研究进展[J].岩石学报, 2017, 33(2):653-666. [19] 纪敏, 赵新福, 曾丽平, 等.鄂东南铜绿山矿床石榴石显微结构及微区成分对成矿过程的指示[J].岩石学报, 2018, 34(9):2716-2732. http://d.old.wanfangdata.com.cn/Periodical_ysxb98201809014.aspx [20] Xie G Q, Mao J W, Li R L, et al.Geochemistry, Nd-Sr isotopic studies of Late Mesozoic granitoids in the southeastern Hubei Province, Middle-Lower Yangtze River belt, Eastern China:Petrogensis, tectonic setting[J].Lithos, 2008, 104(1):216-230. [21] 夏金龙, 黄圭成, 丁丽雪.鄂东南地区何锡铺岩体锆石U-Pb定年、岩浆源区及其地质意义[J].地质科技情报, 2017, 36(6):104-112. http://d.wanfangdata.com.cn/periodical/dzkjqb201706011 [22] Li J W, Zhao X F, Zhou M F, et al.Origin of the Tongshankou porphyry-skarn Cu-Mo deposit, eastern Yangtze craton, Eastern China:Geochronological, geochemical, and Sr-Nd-Hf isotopic constraints[J].Mineralium Deposita, 2008, 43(3):315-336. doi: 10.1007/s00126-007-0161-3 [23] Li J W, Zhao X F, Zhou M F, et al.Late Mesozoic magmatism from the Daye region, Eastern China:U-Pb ages, petrogenesis, and geodynamic implications[J].Contributions to Mineralogy and Petrology, 2009, 157(3):383-409. doi: 10.1007/s00410-008-0341-x [24] Xie G Q, Mao J W, Zhao H J.Zircon U-Pb geochronological and Hf isotopic constraints on petrogenesis of Late Mesozoic intrusions in the southeast Hubei Province, Middle-Lower Yangtze River belt (MLYRB), East China[J].Lithos, 2011, 125(1/2):693-710. http://www.sciencedirect.com/science/article/pii/S0024493711001101 [25] 谢桂青, 毛景文, 李瑞玲, 等.长江中下游鄂东南地区大寺组火山岩SHRIMP定年及其意义[J].科学通报, 2006, 51(19):2283-2291. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=kxtb200619011 [26] 李瑞玲, 朱乔乔, 侯可军, 等.长江中下游金牛盆地花岗斑岩和流纹斑岩的锆石U-Pb年龄、Hf同位素组成及其地质意义[J].岩石学报, 2012, 28(10):3347-3360. http://d.wanfangdata.com.cn/Periodical/ysxb98201210021 [27] Xie G Q, Mao J W, Li X W, et al.Late Mesozoic bimodal volcanic rocks in the Jinniu Basin, Middle-Lower Yangtze River Belt (YRB), East China:Age, petrogenesis and tectonic implications[J].Lithos, 2011, 127(1/2):144-164. [28] 柳炳利.原生晕地球化学异常分析及深部盲矿预测[D].成都: 成都理工大学, 2012. [29] Zhang Y C, Gao S B, Zheng Y Y, et al.Mineralogy, fluid inclusions and C-H-O-S-Pb isotopes of the Palaeocene Longgen Pb-Zn deposit in the western Nyainqentanglha belt, Tibet[J].Ore Geology Review, 2018, 102:18-43. doi: 10.1016/j.oregeorev.2018.08.026 [30] 李葆华, 陈晨, 董晓燕, 等.甘肃干沙鄂博稀土矿床成矿介质演化过程:来自包裹体的信息[J].成都理工大学学报:自然科学版, 2017, 44(5):579-588. [31] Hall D L, Sterner S M, Bodnar R J.Freezing point depression of NaCl-KCl-H2O solutions[J].Economic Geology, 1988, 83(1):197-202. doi: 10.2113/gsecongeo.83.1.197 [32] 赵一鸣, 林文蔚, 毕承思, 等.中国矽卡岩矿床基本地质特征[J].中国地质科学院院报, 1986, 7(3):59-87. [33] 欧阳永棚, 饶建锋, 尧在雨, 等.朱溪式矽卡岩型矿床成矿作用及找矿方向[J].地质科技情报, 2018, 37(3):148-158. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dzkjqb201803020 [34] 陈衍景, 李诺.大陆内部浆控高温热液矿床成矿流体性质及其与岛弧区同类矿床的差异[J].岩石学报, 2009, 25(10):2477-2508. [35] 黄惠兰, 谭靖, 邱昆峰, 等.广东英德周屋铜多金属矿床流体包裹体特征[J].地质科技情报, 2017, 36(6):122-135. [36] 刘继顺, 马光, 舒广龙.湖北铜绿山矽卡岩型铜铁矿床中隐爆角砾岩型金(铜)矿体的发现及其找矿前景[J].矿床地质, 2005, 24(5):60-69. [37] 赵劲松, 赵斌, 李建威, 等.矽卡岩岩浆对中国北方某些矽卡岩型矿床形成的制约:来自包裹体激光拉曼分析证据[J].岩石学报, 2015, 31(4):1079-1088. [38] 赵劲松, 夏斌, 丘学林, 等.海南岛石碌矽卡岩铁矿石中石榴石的熔融包裹体及其意义[J].岩石学报, 2008, 24(1):149-160. [39] 梁婷, 周义, 谢星.陕西商洛绿帘石的基本特征研究[J].宝石和宝石学杂志, 2003, 5(2):30-32. [40] 赵劲松, 赵斌, 张重泽, 等.大冶-城门山夕卡岩矿床石榴石和辉石中熔融包裹体成分研究[J].地球化学, 2003, 32(6):540-550. [41] 卢焕章.流体熔融包裹体[J].矿物岩石地球化学通讯, 1987, 6(3):122-123, 128. [42] Zhao B, Zhao J S, Li Z L, et al.Characteristics of melt inclusions in skarn minerals from Fe, Cu(Au) and Au(Cu) ore deposits in the region from Daye to Jiujiang[J].Science in China, 2003, 46(5):481-497. doi: 10.1360/03yd9042 [43] 赵斌, 赵劲松, 许德如.长江中下游成矿带矽卡岩型矿床矿物包裹体激光拉曼分析结果及其地质-地球化学意义[J].岩石学报, 2017, 33(6):1841-1858. [44] 翟裕生, 石准立, 林新多, 等.鄂东大冶式铁矿成因的若干问题[J].地球科学:中国地质大学学报, 1982, 7(3):239-251. [45] 林新多.岩浆-热液过渡型矿床的若干特征[J].现代地质, 1998, 12(4):30-37. [46] 赵斌, 赵劲松, 张重泽, 等.岩浆成因夕卡岩的实验证据[J].科学通报, 1993, 38(21):1986-1989. -
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