K-Ar DATING OF FAULT GOUGE FROM THE MAIN FAULT OF WULONGGOU GOLD DEPOSIT IN DULAN, QINGHAI PROVINCE
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摘要:
应用K-Ar法对青海省都兰县五龙沟金矿主断裂带内的3个断层泥样品进行同位素测定，以确定该脆性断裂的活动时代，初步探讨该段脆性断裂与成矿之间的关系。测试得到的断层泥样品中自生伊利石的年龄为（185.54±3.06）~（165.11±3.28）Ma，表明该矿床内的脆性断裂活动时代为早侏罗世晚期—中侏罗世，结合野外地质情况，推测脆性断裂的活动对成矿起到了改造和破坏的作用。
Abstract:In this paper, K-Ar dating of three fault gouge samples from the main fault belt in Wulonggou gold ore in Dulan, Qinghai Province were made to determine the activity time of the brittle fault. Then the relationship between the main fault and mineralization was discussed. The age of self-generated illite within the fault gouge samples is 185.54±3.06 to 165.11±3.28 Ma, which represents the formation epoch of the main fault being the late of Early Jurassic to Middle Jurassic. Combining with the field geological condition, it is suggested that main fault damaged and modified mineralization in the late of Early Jurassic to Middle Jurassic.
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Key words:
- K-Ar dating /
- fault gouge /
- Wulonggou gold deposit /
- Qinghai Province
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表 1 五龙沟金矿主断裂带断层泥K-Ar测年数据
Table 1. The K-Ar dating result of fault gouges from the main fault in Wulonggou gold deposit
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表 2 五龙沟金矿主断裂带断层泥组成
Table 2. The composition of fault gouges from the main fault in Wulonggou gold deposit
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[1] 党兴彦, 范桂忠, 李智明, 等.东昆仑成矿带典型矿床分析[J].西北地质, 2006, 39(12):143~155. http://www.cnki.com.cn/Article/CJFDTOTAL-XBDI200602010.htm
DANG Xing-yan, FAN Gui-zhong, LI Zhi-ming, et al. Typic deposit analysis in the eastern Kunlun area, NW China[J]. Northwestern Geology, 2006, 39(12):143~155. http://www.cnki.com.cn/Article/CJFDTOTAL-XBDI200602010.htm
[2] 张德全, 徐文艺, 贾群子. 东昆仑地区综合找矿预测与突破[R]. 北京: 中国地质科学院, 2002.
ZHANG De-quan, XU Wen-yi, JIA Qun-zi. Prediction and breakthrough of prospecting ore in East Kunlun area[R]. Beijing:Chinese Academy of Geological Sciences, 2002.
[3] 张凯, 苟荣涛, 刘树林, 等.东昆仑大干沟一带铜金锑矿特征及找矿意义[J].地质力学学报, 2012, 18(4):401~409. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20120405&journal_id=dzlxxb
ZHANG Kai, GOU Rong-tao, LIU Shu-lin, et al. Characteristics and significance of the copper-gold-antimony deposits in Dagangou area, East Kunlun[J]. Journal of Geomechanics, 2012, 18(4):401~409. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20120405&journal_id=dzlxxb
[4] 袁万明, 王世成, 王兰芬.东昆仑五龙沟金矿床成矿热液历史的裂变径迹热年代学证据[J].地球学报, 2000, 21(4):389~395. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXB200004008.htm
YUAN Wan-ming, WANG Shi-cheng, WANG Lan-fen. Metallogenic thermal history of the Wulonggou gold deposits in East Kunlun Mountains in the light of Fission Track Thermochronology[J]. Acta Geoscientia Sinica, 2000, 21(4):389~395. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXB200004008.htm
[5] 钱壮志, 李厚民, 胡正国.青海省五龙沟金矿控矿构造研究[J].西安地质学院学报, 1997, 19(增刊):27~32. http://cdmd.cnki.com.cn/Article/CDMD-11415-1015389571.htm
QIAN Zhuang-zhi, LI Hou-min, HU Zheng-guo. Study of structures controlling gold deposits in Wulonggou areas, Qinghai Province[J]. Journal of Xi'an college of Geology, 1997, 19(Supp.):27~32. http://cdmd.cnki.com.cn/Article/CDMD-11415-1015389571.htm
[6] 周轶群, 胡道功.青海五龙沟金矿区蚀变矿物光谱特征与找矿应用[J].地质力学学报, 2012, 18(3):331~338. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20120316&journal_id=dzlxxb
ZHOU Yi-qun, HU Dao-gong. Spectral characteristics of alteration minerals and its application in gold deposit prospecting in Wulonggou, Qinghai Province[J]. Journal of Geomechanics, 2012, 18(3):331~338. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20120316&journal_id=dzlxxb
[7] 古凤宝.东昆仑地质特征及晚古生代-中生代构造演化[J].青海地质, 1994, (1):4~14. http://www.cnki.com.cn/Article/CJFDTOTAL-GTJL199401001.htm
GU Feng-bao. Geological characteristics of East Kunlun and tectonic evolution in late Palaezoic-Mesozoic era[J]. Qinghai Geology, 1994, (1):4~14. http://www.cnki.com.cn/Article/CJFDTOTAL-GTJL199401001.htm
[8] 范丽琨, 蔡岩萍, 梁海川, 等.东昆仑地质构造及地球动力学演化特征[J].地质调查与研究, 2009, 33(3):181~186. http://www.cnki.com.cn/Article/CJFDTOTAL-QHWJ200903009.htm
FAN Li-kun, CAI Yan-ping, LIANG Hai-chuan, et al. Characters and evolution of the geodynamics in the Eastern Kunlun[J]. Geological Survey and Research, 2009, 33(3):181~186. http://www.cnki.com.cn/Article/CJFDTOTAL-QHWJ200903009.htm
[9] 许志琴, 杨经绥, 李海兵, 等.造山的高原——青藏高原地体的拼合、碰撞造山及隆升机制[M].北京:地质出版社, 2007:1~458.
XU Zhi-qin, YANG Jing-sui, LI Hai-bing, et al. Orogenic plateau:Terrane amalgamation, collision and uplift in the Qinghai-Tibet Plateau[M]. Beijing:Geological Publishing House, 2007:1~458.
[10] 孙王勇, 孟军海, 王成栋, 等.东昆仑东段深大断裂的认识[J].物探与化探, 2007, 31(5):408~413. http://www.cnki.com.cn/Article/CJFDTOTAL-WTYH200705005.htm
SUN Wang-yong, MENG Jun-hai, WANG Cheng-dong, et al. New understanding of deep faults in the eastern part of East Kunlun Mountains[J]. Geophysical and Geochemical Exploration, 2007, 31(5):408~413. http://www.cnki.com.cn/Article/CJFDTOTAL-WTYH200705005.htm
[11] 张延林, 马永久, 陈建林, 等. 青海省都兰县五龙沟矿区报告[R]. 西宁: 青海省第一矿产勘查院, 2008.
ZHANG Yan-lin, MA Yong-jiu, CHEN Jian-lin, et al. Report of Wulonggou gold deposit in Dulan, Qinghai[R].Xining:No.1 Mineral Survey Institute of Qinghai Province, 2008.
[12] Hower J, Hurley P M, Pinson W H, et al. The dependence of K-Ar age on the mineralogy of various particle size ranges in a shale[J]. Geochimica et Cosmochimca Acta, 1963, 27(5):405~410. doi: 10.1016/0016-7037(63)90080-2
[13] Kralik M, Klima K, Riedmuller G. Dating fault gouges[J]. Nature, 1987, 327:315~317. doi: 10.1038/327315a0
[14] Vrolijk P, van der Pluijm B A. Clay gouge[J]. Journal of Structural Geology, 1999, 21:1039~1048. doi: 10.1016/S0191-8141(99)00103-0
[15] 林传勇, 史兰斌, 刘行松, 等.断层泥在基岩区断层新活动研究中的意义[J].中国地震, 1995, 11(2):26~32. http://www.cnki.com.cn/Article/CJFDTOTAL-ZGZD501.003.htm
LIN Chuan-yong, SHI Lan-bin, LIU Xing-song, et al. Significance of fault gouge in the study of recent activity of fault in bedrock area[J]. Earthquake Research in China, 1995, 11(2):26~32. http://www.cnki.com.cn/Article/CJFDTOTAL-ZGZD501.003.htm
[16] 王勇生, 朱光, 胡召齐, 等.郯庐断裂带沂沭段伸展活动断层泥K-Ar同位素定年[J].中国科学D辑:地球科学, 2009, 39(5):580~593. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200905005.htm
WANG Yong-sheng, ZHU Guang, HU Zhao-qi, et al. K-Ar isotopic dating of extensional fault gouge from the Yi-Shu segment of the Tan-Lu fault zone[J]. Science in China Series D:Earth Sciences, 2009, 39(5):580~593. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200905005.htm
[17] 张有瑜, 罗修泉, 宋健.油气储层中自生伊利石K-Ar同位素年代学研究若干问题的初步探讨[J].现代地质, 2002, 16(4):403~407. http://www.cnki.com.cn/Article/CJFDTOTAL-XDDZ200204010.htm
ZHANG You-yu, LUO Xiu-quan, SONG Jian. Discussions on K-Ar isotopic geochronological studies of authigenic illites in hydrocarbon reservoirs[J]. Geoscience, 2002, 16(4):403~407. http://www.cnki.com.cn/Article/CJFDTOTAL-XDDZ200204010.htm
[18] 胡正国, 刘继庆, 钱壮志, 等.东昆仑区域成矿规律初步研究[J].黄金科学技术, 1998, 6(5/6):6~13. http://www.cnki.com.cn/Article/CJFDTOTAL-HJKJ8Z1.001.htm
HU Zheng-guo, LIU Ji-qing, QIAN Zhuang-zhi, et al. A study of the regional metallogenetic regularity in east Kunlun Mountain[J]. Gold Science and Technology, 1998, 6(5/6):6~13. http://www.cnki.com.cn/Article/CJFDTOTAL-HJKJ8Z1.001.htm
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