全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

西藏冈底斯成矿带的斑岩-矽卡岩成矿系统:――来自斑岩矿床和矽卡岩型铜多金属矿床的Re-Os同位素年龄证据

, PP. 482-490

Keywords: 斑岩型铜矿,矽卡岩型铜多金属矿床,Re-Os年龄,喜马拉雅期,斑岩-矽卡岩成矿系统

Full-Text   Cite this paper   Add to My Lib

Abstract:

笔者通过对冈底斯成矿带驱龙、厅宫斑岩铜矿区和甲马、知不拉等矽卡岩型铜多金属矿区的辉钼矿样品进行的Re-0s法同位素定年研究,获得驱龙、厅宫、甲马和知不拉等矿区的精确成矿年龄。4件驱龙斑岩铜矿区辉钼矿样品的Re-Os模式年龄介于(15.75±0.42)Ma~(16.23±0.90)Ma之间,等时线年龄为(15.99±0.32)Ma;7件厅宫斑岩铜矿矿区辉钼矿样品的Re-Os模式年龄介于(15.5±0.3)Ma~(16.3±0.3)Ma之间,等时线年龄为(15.49±0.36)Ma;在矽卡岩型铜多金属矿区中,7件甲马矿区辉钼矿样品的Re-Os模式年龄介于(15.4±0.2)Ma~(15.5±0.2)Ma之间,等时线年龄为(15.18±0.98)Ma;5件知不拉矿区辉钼矿样品的Re-Os模式年龄介于(16.88±0.28)Ma~(17.06±0.27)Ma之间,等时线年龄为(16.90±0.64)Ma。斑岩铜矿区和矽卡岩型铜多金属矿区所获得的年龄数据基本一致,其年龄明显晚于中生代弧间盆地和碰撞型花岗岩的发育时间,同时矽卡岩型铜多金属矿床在空间上亦分布于斑岩铜矿床的外围。因此笔者认为甲马和知不拉等铜铅锌矿床与冈底斯成矿带新生代晚期大规模成矿形成的斑岩铜钼矿床属于统一的斑岩-矽卡岩成矿系统,是由深源花岗质岩浆的岩浆-热液系统在不同的围岩介质条件成矿的产物。

References

[1]  侯增谦,曲晓明,王淑贤,高永丰,杜安道,黄卫.2003b. 西藏高原冈底斯斑岩铜矿带辉钼矿Re-0s年龄:成矿作用时限与动力学背景应用.中国科学(D辑),33(7):609-618.
[2]  李光明,冯孝良,黄志英,高大发.2000. 西藏冈底斯构造带中段多岛弧-盆系及其演化. 沉积与特提斯地质,20(4):38-46.
[3]  李光明,杨家瑞,丁俊.2003. 西藏雅鲁藏布江成矿区矿产资源评价新进展.地质通报,22(9):699-703.
[4]  曲晓明,侯增谦,李振清.2003. 冈底斯铜矿带含矿斑岩的40Ar/39Ar年龄及地质意义.地质学报,77(2):245-252.
[5]  姚鹏,郑明华,彭勇民,李金高,粟登奎,范文玉.2002. 西藏冈底斯岛弧带甲马铜多金属矿床成矿物质来源及成因研究.地质论评,48(5):468-479.
[6]  袁万明,侯增谦,李胜荣,王世成.2001. 西藏甲马多金届矿区热历史的裂变径迹证据.中国科学(D辑), 31(增刊):117-121.
[7]  郑有业,王保生,樊子珲,张华平.2002. 西藏冈底斯东段构造演化与铜多金属成矿潜力分析.地质科技情报,21(2):55-60.
[8]  Bureau of Geology and Mineral Resources of Xizang Autonomous Region. 1993. Regional geology of Xizang(Tibet) autonomous region. Beijing: Geol Pub House: 319-393( in Chinese ).
[9]  Du Andao, Wang Shuxian, Sun Dezhong, Zhao Dunminn and Liu Dunyi. 2001. Precise Re-Os dating of molybdenite using Carius tube, NTIMS and ICPMS. In: Mineral deposits in the 21st Century, Pidstrzynski et al. (eds): 45-407.
[10]  Du Andao, He Hongliao and Yin Ningwan. 1994. The study on the analytical methods of Re-Os age for molybdenites.Acta Geologica Sincia, 6 (4): 339-347(in Chinese with English abstract).
[11]  Du Guangshu,Yao Peng, Pan Fengchu,Su Dengkui, Li Wenbin and Ning Yinyi.1998. Sedimentation-exhatation skarn and its mineralization: an example from the Jiama copper-polymetallic deposit,Tibet. Chengdu: Sichuan Publishing House of Science and Technology, 82-113 (in Chinese with English abstract).
[12]  Huang Ziying and Li Guangming. 2004. Basic characteristics of porphyry copper ore deposits and its prospecting in yaluzangbujiang metallogenic province, Tibet. Geology and Prospecting, 40(1): 1-6(in Chinese with English abstract).
[13]  Li Guangming, Feng Xiaoliang, Huang Ziying and Gao Dafa. 2000. Multiple island arc-basin system and its evolution in Gangdese tectonic belt, Tibet. Sedimentary Geology And Tethyan Geology, 20(4):38-46(in Chinese with English abstract).
[14]  Li Guangming and Rui Zongyao. 2004. Petrogenetic and metallogenetic ages for the porphyry copper deposits in the Gangdese metallogenic belt in southern Tibet. Geotectonica et Metallogenia, 28(2):165-170 (in Chinese with English abstract).
[15]  Li Guangming, Yang Jiarui and Ding Jun. 2003. Newly advances of mineral resources exploration in Yaluzangbujiang metallogenic province, Tibet. Geological Bulletin of China, 22(9): 699-703 (in Chinese with English abstract).
[16]  Ludwing K. 1999. Isoplot/Ex, version 2.0: A geochronogical toolkit for Microsoft Excel. Geochronology Center, Berkeley, Special Publication 1a.
[17]  Meng Xiangjin, Hou Zengqian, Gao Yongfeng, Huang Wei, Qu Xiaoming and Qu Wenjun. 2003. Development of porphyry copper-molybdenum-lead-zine ore-forming system in east Gangdese belt: evidence from Re-Os age of molybdenite in Bangpu copper polymetallic deposit. Mineral Deposits, 22(3): 246-252(in Chinese with English abstract).
[18]  Pan Fengcu, Deng Jun, Yao Peng, Wang Qingfei and Liu Yuxiang. 2002. The eruptive origins of copper and multi-metal deposits in the skarns in Jiama,Tibet. Geoscience, 16(4): 359-364(in Chinese with English abstract).
[19]  Pan Fengcu, Su Dengkuei, Yao Peng and Du Guangshu.1997. Geological features of Jiama sedimentary-exhalation skarn-type copper polymetallic deposit in Xizang. Xizang Geology, (2): 62-73(in Chinese with English abstract).
[20]  杜安道,何红蓼,殷宁万.1994. 辉钼矿的铼-锇同位素地质年龄测定方法研究.地质学报, 6(4):339-347.
[21]  杜光树,姚鹏,潘凤雏,粟登奎,李文彬,宁英毅.1998. 喷流成因矽卡岩与成矿――以西藏甲马铜多金属矿床为例.成都: 四川科学技术出版社,82-113.
[22]  冯孝良,管仕平,牟传龙,侯增谦,李胜荣.2001. 西藏甲马铜多金属矿床的岩浆热液交代成因:地质与地球化学证据.地质地球化学,29(4):40-48.
[23]  侯增谦,高永丰,孟祥金,曲晓明,黄卫.2004. 西藏冈底斯中新世斑岩铜带:埃达克质斑岩成因与构造控制.岩石学报,20(2):239-248.
[24]  侯增谦,莫宣学,高永丰,曲晓明,孟祥金.2003a. 埃达克岩:斑岩铜矿的一种可能的重要含矿母岩――以西藏和智利斑岩铜矿为例.矿床地质, 22(1):1-12.
[25]  黄志英, 李光明. 2004. 西藏雅鲁藏布江成矿区斑岩型铜矿基本特征与找矿潜力. 地质与勘探,40(1): 1-6.
[26]  李光明,芮宗瑶. 2004. 西藏冈底斯成矿带斑岩铜矿的成岩成矿年龄.大地构造与成矿学,28(2):165-170.
[27]  孟祥金,侯增谦,高永丰,黄卫,曲晓明,屈文俊.2003. 西藏冈底斯东段斑岩铜钼铅锌成矿系统的发育时限:帮浦铜多金属矿床辉钼矿Re-0s年龄证据.矿床地质,22(3):246-252.
[28]  潘风雏,邓军,姚鹏,王庆飞,刘玉祥.2002. 西藏甲马铜多金属矿床矽卡岩的喷流成因.现代地质,16(4):359-364.
[29]  潘凤雏,粟登逵,姚鹏,杜光树.1997. 西藏甲马喷流矽卡岩型铜多金属矿床地质特征.西藏地质,(2):62-73.
[30]  潘桂棠,陈智梁,李兴振,颜仰基,许效松,徐强,江新胜,吴应林,罗建宁,朱同兴,彭勇明.1997. 东特提斯地质构造形成演化.北京:地质出版社,65-101.
[31]  王小春,晏子贵,周维德,贾向勘,李作华,文军,徐德章,袁剑飞.2002. 初论西藏冈底斯带中段尼木西北部斑岩铜矿地质特征.地质与勘探,38(1):5-8.
[32]  西藏自治区地质矿产局.1993. 西藏自治区区域地质志.北京:地质出版社,319-393.
[33]  Feng Xiaoliang, Guan Shiping, Mu Chuanlong, Hou Zengqian and Li Shengrong. 2001. Geological characteristics and genesis of Jiama copper-polymetallic deposit in Tibet. Geology-Geochemistry, 29(4): 40-48 (in Chinese with English abstract).
[34]  Hou Z Q,Gao Y F,Meng X J,Qu X M and Huang W. 2004. Genesis of adakitic porphyry and tectonic controls on the Gangdese Miocene porphyry copper belt in the Tibetan orogen.Acta Petrologica Sinica,20(2):239-248(in Chinese).
[35]  Hou Z-Q, Gao Y-F, Qu X-M, Rui Z-Y and Mo X-X. 2004. Origin of adakitic intrusives generated during mid-Miocene east-west extension in southern Tibet. Earth and Planeary Science Letters, 220: 139-155.
[36]  Hou Zengqian, Mo Xuanxue, Gao Yongfeng, Qu Xiaoming and Meng Xiangjin. 2003a. Adakite, a possible host rock for porphyry copper deposits: studies of porphyry copper belts in Tibetan Plateau and in North Chile. Mineral Deposits, 22(1): 1-12(in Chinese with English abstract).
[37]  Hou Zengqian, Qu Xiaoming, Wang Suxian,Gao Yongfeng, Du Andao and Huang Wei. 2003b. The Re-Os age of molybdenites from Gangdese porphyry copper deposits belt, Xizang plateau: mineralization age and application of dynamic setting. Science in China(series D), 33(7): 609-618 (in Chinese).
[38]  Pan Guitang, Chen Zhiliang, Li Xinzheng Yan Yangji, Xu Xiaosong, Xu Qiang, Jiang Xinsheng, Wu Yinglin, Luo Jianyin, Zhu Tongxing and Peng Yongming. 1997. Geological tectonic evolution of eastern Tethyan. Beijing: Geol Pub House, 65-101 (in Chinese ) .
[39]  Qu Xiaoming, Hou Zengqian and Li Zhenqing. 2003. 40Ar/39Ar ages of ore-bearing porphyries of Gangdese porphyry copper belt and their geological significance. Acta Geologica Sincia, 77 (2): 245-252(in Chinese with English abstract).
[40]  Shirey S B and Walker R J. 1995. Carius tube digestion for low-blank rhenium-osmium analysis. Anal Chem, 67:2136-2141.
[41]  Smoliar M I, Walker R J and Morgan J W. 1996. Re-OS ages of group I A, IIA, IVA and IVB iron meteorites. Science, 271: 1099-1102.
[42]  Wang Xiaochun,Yan Zigui, Zhou Weide, Jia Xiangkan, Li Zuohua, Wen Jun, Xu Dezhang and Yuan Jianfei. 2002. Preliminery study on geological features of porphyry-type copper deposits in northwestern Nimu, middle section of Gangdese belt, Tibet. Geology and Prospecting, 38(1): 5-8 (in Chinese with English abstract).
[43]  Yuan Wanming, Hou Zengqian, Li shengrong and Wang Shichen. 2001. The hot history of fission track evidences in Xizang Jiama copper polymetallic ore deposit. Science in China(series D), 31(suppl): 117-121(in Chinese).
[44]  Zhen Youye, Wang Baosheng, Fan Zhihui and Zhang Huaping. 2002. Analysis of tectonic evolution in the eastern section of the Gangdese mountains, Tibet, and the metallogenic potentialities of copper and gold poly?metals. Geological Science and Technology Information, 21(2): 55-60(in Chinese with English abstract).

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133