|
|
Geochemical characteristics of fluid inclusions in Lijia copper mine, Zhangjiajie, Northwest Hunan |
LIANG Enyun, ZOU Guangjun, PENG Yunyi, XIONG Miao |
Hunan Institute of Geological Survey, Changsha 410116, China |
|
|
Abstract Northwest Hunan is a famous area producing lead-zinc ore and manganese ore. In order to improve the research on the metallogenic sequence in this area, the authors made some analyses on the intramineral quartz, calcite and barite in Lijia copper mine in Zhangjiajie, which include homogenization temperature, salinity, gas compositions, liquid compositions and oxygen and hydrogen isotope. The results show that the homogenization temperature of the inclusion is from 146 ℃ to 282 ℃, and the salinity of the ore-forming fluid is from 0.71% to 15.86% (NaCl). The gas components of the ore-forming fluid have a little CH4 and H2, and the ions in the inclusion liquid compositions are mainly Ca2+, Mg2+, Na+, K+, $SO_{4}^{2-}$ and Cl-. The oxygen isotope (δ18O矿物) value is from 11.6‰ to 17‰, and the hydrogen isotope (δD) value is from -54.7‰ to -76.2‰. By calculation, the metallogenic pressure is from 1.02 MPa to 66.17 MPa, and the metallogenic depth is from 0.1 km to 6.57 km. It can be concluded that the metallogenic hydrothermal solution is a stratabound hot brine, and the metallogenic time is from Sinian Doushantuo period to Silurian Wenloch period.
|
Received: 27 February 2018
|
|
|
|
|
[1] 杨绍祥,劳可通.湘西北铅锌矿床的地质特征及找矿标志[J].地质通报,2007,26(7):899-908. [2] 匡文龙,刘新华,陈年生,等.湘西北下光荣矿区铅锌矿床主要地球化学特征[J].地质科学,2008,43(4):685-694. [3] 匡文龙,向世超,肖文舟,等.湘西北地区铅锌矿床成矿地质特征及矿床成因研究[J].矿床地质,2015,34(5):1072-1082. [4] 彭能立,梁恩云,刘伟,等.湘西凤凰民稿铅锌矿床地质地球化学特征及其成因[J].矿物岩石地球化学通报,2016,35(1):151-162. [5] 彭能立,刘伟,梁恩云,等.湘西地区北洛塔和花垣铅锌矿田对比研究[J].地质找矿论丛,2016,31(2):190-198. [6] 杨绍祥,劳可通.湘西北锰矿床成矿模式研究——以湖南花垣民乐锰矿床为例[J].沉积与特提斯地质,2006,26(2):72-80. [7] 匡文龙,李雪宇,杨绍祥.湘西北地区民乐式锰矿成矿地质特征及矿床成因[J].地质科学,2014,49(1):305-323. [8] 陈明辉,杨长明,潘君庆,等.湘西北烂泥田锰矿区地质特征与成矿地质条件及成因[J].地质找矿论丛,2016,31(4):515-521. [9] 梁恩云,刘伟,刘耀荣,等.关于湘西北红岩溪地区沉积-构造-成矿研究的一些认识[J].中国地质调查,2016,3(4):29-36. [10] 梁恩云,刘耀荣,邹光均,等.张家界地区志留系岩石地球化学与构造背景[J].中国地质调查,2017,4(6):58-65. [11] 卢焕章,范宏瑞,倪培,等.流体包裹体[M].北京:科学出版社,2004:1-487. [12] 陈本金,温春齐,霍艳,等.黔西南水银洞金矿床流体包裹体研究[J].矿物岩石地球化学通报,2010,29(1):45-51. [13] 周云,唐菊兴,秦志鹏,等.西藏甲玛铜多金属矿床成因研究——来自流体包裹体的证据[J].地球学报,2012,33(4):485-500. [14] 倪培,范宏瑞,丁俊英.流体包裹体研究进展[J].矿物岩石地球化学通报,2014,33(1):1-5. [15] 彭义伟,顾雪祥,章永梅,等.黔西南灰家堡金矿田成矿流体来源及演化:流体包裹体和稳定同位素证据[J].矿物岩石地球化学通报,2014,33(5):666-680. [16] 王疆丽,林方成,侯林,等.贵州泥堡金矿床流体包裹体特征及其成矿意义[J].矿物岩石地球化学通报,2014,33(5):688-699. [17] 牟雨亮,王甘露,付勇殷,等.黔东南石英脉型金矿床中铁白云石流体包裹体研究[J].中国地质调查,2017,4(5):24-30. [18] 杨利亚,杨立强,袁万明,等.造山型金矿成矿流体来源与演化的氢-氧同位素示踪:夹皮沟金矿带例析[J].岩石学报,2013,29(11):4025-4035. [19] 陈永清,周顶,郭令芬.内蒙古花敖包特铅锌银多金属矿床成因探讨:流体包裹体及硫、铅、氢、氧同位素证据[J].吉林大学学报:地球科学版,2014,44(5):1478-1491. [20] 袁波,毛景文,闫兴虎,等.四川大梁子铅锌矿成矿物质来源与成矿机制:硫、碳、氢、氧、锶同位素及闪锌矿微量元素制约[J].岩石学报,2014,30(1):209-220. [21] 郭林楠,张潮,宋宇宙,等.胶东望儿山金矿床氢-氧同位素地球化学研究[J].岩石学报,2014,30(9):2481-2494. [22] 杨秀清,李厚民,李立兴,等.辽宁鞍山—本溪地区铁矿床流体包裹体和硫、氢、氧同位素特征研究[J].地质学报,2014,88(10):1917-1930. [23] 刘翔,彭振安,庞文聪,等.广西栗木钨锡铌钽矿区流体包裹体及氢氧同位素研究[J].地质与勘探,2016,52(6):1016-1028. [24] 王鹏,董国臣,李雪峰,等.滇西北红山—红牛铜矿成矿物源:矿物学和稳定同位素约束[J].地学前缘,2017,24(6):176-193. [25] Brown P E.FLINCOR:A microcomputer program for the reduction and investigation of fluid-inclusion data[J].Am Mineral,1989,74:1390-1393. [26] 刘斌,朱思林,沈昆.流体包裹体热力学参数计算软件及算例[M].北京:地质出版社,2000:1-252. [27] 刘斌,段光贤.NaCl-H2O溶液包裹体的密度式和等容式及其应用[J].矿物学报,1987,7(4):345-352. [28] Zheng Y F.Calculation of oxygen isotope fractionation in anhydrous silicate minerals[J].Geochim Cosmochim Acta,1993,57(5):1079-1091. [29] Misra K C.Understanding Mineral Deposits[M].Netherlands:Springer,2000:1-845. [30] 杨金中,沈远超,刘铁兵,等.山东蓬家夼金矿床成矿流体地球化学特征[J].矿床地质,2000,19(3):235-244. [31] Roedder E,Bodnar R J.Geologic pressure determinations from fluid inclusion studies[J].Ann Rev Earth Planet Sci,1980,8:263-301. [32] 孙丰月,金巍,李碧乐,等.关于脉状热液金矿床成矿深度的思考[J].长春科技大学学报,2000,30(增刊1):27-30. [33] 湖南省地质调查院.湖南1∶5万尹家溪、溪口、三岔村幅区域地质矿产调查报告[R].长沙,2017. |
[1] |
LIANG Enyun, LIU Yaorong, ZOU Guangjun, WEI Fanghui, LIU Gengyin, XIONG Miao. Geochemical characteristics and tectonic setting of Silurian rocks in Zhangjiajie area[J]. , 2017, 4(6): 58-65. |
[2] |
MU Yuliang, WANG Ganlu, FU Yong, YIN Yingzi. A study on fluid inclusions within ankerites of quartz-vein gold deposits in southeastern Guizhou[J]. , 2017, 4(5): 24-30. |
[3] |
HU Bowen, LI Bin, LI Jianxin, WANG Yilin, LUO Qun. Discovery and significance on the seismite of Silurian Xiaoheba Formation in Baojing area of Northwestern Hunan[J]. , 2017, 4(4): 67-73. |
[4] |
GUOJia, NIU Bo. Review on the inorganic geochemical methods of paleo-fluid study[J]. , 2017, 4(1): 45-49. |
|
|
|
|