地球科学进展 ›› 2005, Vol. 20 ›› Issue (7): 765 -771. doi: 10.11867/j.issn.1001-8166.2005.07.0765

综述与评述 上一篇    下一篇

论韧性剪切带研究及其地质意义
杨晓勇   
  1. 中国科学院壳—幔物质与环境重点实验室,中国科技大学地球与空间科学学院,安徽 合肥 230026
  • 收稿日期:2004-10-08 修回日期:2005-03-12 出版日期:2005-07-25
  • 通讯作者: 杨晓勇
  • 基金资助:

    国家自然科学基金项目“天然韧性剪切变形条件下糜棱岩组分活化迁移研究”(编号:40473021)资助.

ON THE STUDIES OF DUCTILE SHEAR ZONES:THEIR GEOLOGICAL SIGNIFICANCE

YANG Xiaoyong   

  1. CAS Key Laboratory of Crust-Mantle Materials and Environments,School of Earth & Space Sciences,University of Science & Technology of China,Hefei 230026,China
  • Received:2004-10-08 Revised:2005-03-12 Online:2005-07-25 Published:2005-07-25

系统研究韧性剪切带变形岩在天然强剪切应力作用条件下常量元素迁移机制及活化转移的应力排序、微量元素迁移的动力控制、稀土元素配分变化和变形矿物晶体化学变异的应力制约等构成了当代韧性剪切带研究的前沿课题,也是当前糜棱岩岩石地球化学研究难点和精华所在。其研究成果将对动力成岩(成矿)机理的认识有重要的突破,具有重要的理论意义和潜在应用价值。对韧性剪切带及其变形岩石的研究现状和研究意义进行系统的综述,提出了未来韧性剪切带及其糜棱岩的研究方向和目标: ①系统研究糜棱岩中主要造岩矿物组合及其变形特征,计算剪切变形岩石的应力—应变参数,搞清韧性剪切带所处的应力应变环境;②系统研究韧性剪切带岩石在天然分强剪切应力作用条件下常量元素迁移机制及活化转移的应力排序问题;③系统研究剪切变形作用过程中岩石化学组成的微量和稀土元素变化,讨论强变形条件下岩石中微量元素活化和迁移规律,深入探讨微量元素迁移的动力控制,包括稀土元素配分变化的应力制约以及应变矿物晶格化学变化行为及其对其寄主的变形岩石元素(组分)在应变过程中迁移变化的制约和影响;④从理论上探讨天然强剪切应变条件下岩石中组分活化、转移与应力(应变)的因果联系,为深入探讨韧性剪切带动力成岩(成矿)作用提供理论的科学依据,为探讨中、下地壳中韧性剪切带的形成和演化提供科学依据(如韧性剪切带金的富集),同时为韧性剪切变形作用条件下成岩、成矿地球化学作用提供理论和实验依据;⑤现代分析技术如激光同位素原位分析以及激光ICPMASS分析技术对研究变形域内的岩石(矿物)的元素和同位素的活化迁移规律,对深刻揭示糜棱岩化过程中的元素活化迁移机制提供更高质量的地球化学证据具有重要的作用。

Systematic studies of element migration,activation,sequence by stress,REE distributions and the mineral crystal parameter variations in the ductile shear zones under condition of natural and strong shearing are the frontier of the ductile shear zones as well as the difficult aspects of geochemistry of mylonites at present. The results will be mostly of importance and breakthrough to the dynamic diagenesis and mineralization theoretically and practically. This paper deals with and summarizes the research and importance of ductile shear zones and presents the future direction and aim for the research of the ductile shear zones around the world. Four aspects of studies of the ductile shear zones have been proposed in this paper as follows: (1) The stress environment including the mineral assemblages,deformation,stress-shearing parameters;(2)The major element sequence and activation under condition of stress;(3)The variations of trace elements and REE,their transportation distributions under strong natural deformation as well as variations of mineral crystal parameters,which can also control the element (component)changes during the ductile deformation;(4)The relationship between element migrations,activation and stress,which will present the new evidences for the studies of dynamic diagenesis and mineralization as well as the studies of evolution of ductile shear zones developed in middle and low levels.(5)The analysis of elements and isotopes in mylonites on the micro-scale are crucial for the understanding of component migrations during the mylonization.

中图分类号: 

[1] Xu Zhiqin. Crustal Deformation and Microstructure[M]. Beijing: Geological Press,1984.[许志琴. 地壳变形与显微构造[M]. 北京:地质出版社,1984.]
[2] Lin Chuanyong, He Yongnian,Shi Lanbin. The brittle-ductile transformation during the ductile shearing of rocks[A]. In:Xiao Qinghui,ed.The Frontier of Geosciences[C]. Beijing: Geological Press,1992.183-190. [林传勇,何永年,史兰斌.岩石的韧性剪切和脆—韧性转换变形[C]. 见:肖庆辉主编.当代地质科学前沿[C]. 北京:地质出版社,1992. 183-190.]
[3] Ramsay J S. Shear zone geometry[J]. Journal of Structural Geology,1980,2: 83-89.
[4] Sibson R H. Fault rock and fault mechanisms [J]. Journal of Geological Society,1977,133:191-221.
[5] Twiss R J. Variable entiuity piezometric equations for dislocation density and subgrain diameter and their relevant to olivine and quartz: In mineral and rock deformation. laboratory studies[A]. In: Hobbs B E, et al, eds.Geophysical Monography[C].1986,36:247-261.
[6] Reston T J. Mantle shear zone and the evolution of the northern North Sea basin[J]. Geology,1990,18:272-275.
[7] Downs H. Shear zones in the upper mantle-relation between geochemical enrichment and deformation in mantle peridotites[J].Geology,1990,17:374-377.
[8] O'hara K D. Fluid flow and volume loss during mylonitization,an origin for phyllonite in an overthrust setting,North California[J]. Tectonophysics,1988, 156:21-36.
[9] O'hara  K D, William H B. Volume-loss model for trace-element enrichments in mylonites[J]. Geology,1989,19:893-896.
[10] O'hara K D. Fluid-rock interaction in crustal shear zones: A directed decollation approach [J]. Geology,1994,22: 843-846.
[11] Xu Zhiqin,Cui Junwen,Zhang Jianxin. The Tectonics of Mountain Chains[M]. Beijing: Metallurgy Press,1996.[许志琴,崔军文,张建新. 大陆山链变形构造动力学[M]. 北京:冶金工业出版社,1996.]
[12] Yang Kaiqing. The contents and direction of dynamic diagenesis and mineralization[J]. Bulletin of Institute of Geological Mechanics,1986,7:1-13.[杨开庆. 动力成岩成矿理论的研究内容和方向[J]. 地质力学研究所刊,1986,7: 1-13.]
[13] He Yongnian,Lin Chuanyong, Shi Lanbin. The Basis for Tectonic Petrology[M]. Beijing: Geological Press,1988.[何永年,林传勇,史兰斌. 构造岩石学基础[M]. 北京:地质出版社,1988.]
[14] Sun Yan,Shen Xiuzhi,Huang Zhongjin, et al.The features,genesis and geological significance of the two types of mylonites[J]. Seismological Geology,1986,8(4):63-69.[ 孙岩,沈修志,黄仲谨,等. 两类糜棱岩的特征、成因及其地质意义[J]. 地震地质,1986,8(4): 63-69.]
[15] Sun Yan,Shu Liangshu,Liu Deliang, et al.Introduction to Fault Tectonogeochemistry[M]. Beijing: Science Press,1998.[孙岩,舒良书,刘德良,等.断裂构造地球化学导论[M]. 北京:科学出版社,1998.]
[16] Sun Yan,Zhu Wenbin,Guo Jichun, et al.On the study of mylonite[J]. Geological Bulletin of China Universities,2001,7:369-378.[孙岩,朱文斌,郭继春,等. 论糜棱岩研究[J]. 高校地质学报,2001,7:369-378.]
[17] Liu Ruixun. Microscopic Structural Geology[M]. Beijing: Press of Peking University,1988.[刘瑞珣. 显微构造地质学[M]. 北京:北京大学出版社,1988.]
[18] Ma Baolin,Liu Ruoxin,Zhang Zhaozhong. The basic characteristics and compartmentalization of the deep tectonic rocks in North China[J]. Bulletin of Najing University (Geosciences),1990,(2):32-44.[马宝林,刘若新,张兆忠.中国华北地区深层次构造岩的基本特征和层次划分[J]. 南京大学学报(地球科学),1990,(2):32-44.]
[19] Guo Jinghui,Zhai Mingguo. The granulite-phase mylonite in Xuwujia[J]. Geological Science,1992,27(2):190-193.[郭敬辉,翟明国. 徐武家麻粒岩相糜棱岩[J]. 地质科学,1992,27(2):190-193.]
[20] Yang Zhuen,Wu Zongxu,Deng Jinfu, et al.The ductile system,petrologic characteristics and geological significance in Taihang- Wutai mountains[J]. Acta Petrologica Sinica, 1995,11(3):279-291.[杨主恩,吴宗絮,邓晋福,等.太行五台山区的韧性剪切系统和构造岩石学特征及其意义[J]. 岩石学报,1995,11(3):279-291.]
[21] Zhou Jianxun,Zhang Guowei. The recognition of microstructure and P-T-t path of Shagou mylonite belt in Shangdan of Qinling mountains[J]. Geological Science,1996,31:33-40.[周建勋,张国伟. 秦岭商丹带沙沟糜棱岩带的显微构造构造及其P-T-t演化路径的再认识[J]. 地质科学,1996,31:33-40.]
[22] Zeng Lingsen,Li Haibing,Xu Zhiqin. The characteristics of self organization in crustal ductile shear zones in south Liaoning province[J]. Bulletin of Earth,1996,17(3):269-275.[曾令森,李海兵,许志琴. 辽南地壳韧性剪切带变形中的自组织现象[J]. 地球学报,1996,17(3):269-275.]
[23] Hanmer S C. Great Slave Lake shear zone in Canadian shield; reconstructed vertical profile of crustal-scale fault zone[J]. Tectonophysics,1988,149:245-264.
[24] Pascal P, Jean R K. Chemical-microstructural changes in eclogite-facis shear zones (Monvlso,Western Alps,North Italy) as indicators of strain history and mechanism and scale of mass transfer[J]. Lithos,1989,23:179-200.
[25] Vissers M L M,Drury M R,Hoogerduijn S,et al.Shear zone in the upper mantle: A case study in an Alpine lherzolite massif[J]. Geology,1991,19:990-993.
[26] Knipe R J. Deformation mechanisms-recognition form natural tectonics[J]. Journal of Structural Geology,1989,11:127-146.
[27] Xu Shutong,Ji Shouyuan. The deformed figure in biotite by natural deformation[J]. Acta Geologica Sinica,1995,59:279-285.[徐树桐,季寿元. 天然变形岩石中黑云母的击象[J]. 地质学报,1985,59:279-285.]
[28] Xue Jiyue,Ma Jun,Ding Yang, et al.The TEM study of deformed structure in amphibole during mylonitization[J]. Acta Mineralogy of China, 1994,14:110-114.[薛纪越,马军,丁阳,等. 糜棱岩化作用中角闪石变形结构的透射电子显微镜研究[J]. 矿物学报,1994,14:110-114.]
[29] Brodie K H. Variations in mineral chemistry across shear zone in ohlogophite peridotite[J]. Journal of Structural Geology,1980, 2: 265-272.
[30] Brodie K H. Variations in amphibole and plagioclase compositions with deformation[J]. Tectonopysics,1981,78:385-402.
[31] Tullis J. Deformation of feldspars[A]. In: Ribbe P H,ed. Feldspar Mineralogy(2nd)[C]. Mineralogy of Society of Americ,Review in Mineralogy,1989,2:297-323.
[32] Tullis J, Yund R A. Dynamic recrystallization of feldspar: A mechanism for ductile shear zone formation[J]. Geology,1991,13: 238-241.
[33] Jensen L N. Plagioclase microfabrics in a ductile shear zone from the Hotun Nappe,Norway[J]. Journal of Structural Geology,1985,7:527-539.
[34] Ji Shaocheng, Mainprice D. Natural deformation fabrics of plagioclase: Implications for slip systems and seismic anisotropy[J]. Tectonophysics,1988,147:145-163.
[35] Yang Xiaoyong,Yang Xueming,Liu Deliang,et al.Variations of the compositions and structural state of feldspars during mylonization in the ductile shear zones of the southern Tacheng-Lujiang fault[J]. Seismology and Geology,1998,20:332-342.[杨晓勇,杨学明,刘德良,等. 郯庐断裂带南段韧性剪切带糜棱岩化过程中长石成分和结构状态变化特征研究[J]. 地震地质,1998,20:332-342.]
[36] Yang Xiaoyong,Liu Deliang, Wagner G A. Conditions of deformation and variations of compositional and structural state of feldspars during mylonitizaton: Exemplified from the ductile shear zones in south Tanlu fault belt of China[J]. Neues Jahrbuch für Mineralogie. (Monatshefte),Jg.2001,(9~10): 415-432.
[37] Xiao Huayun,Wu Xueyi,Zhu Jianming, et al.The simulation experiment of SiO2 migration in phyllite—Taking Jinshan gold deposit as an example[J]. Acta Mineralogy of China, 1999,19:343-348.[肖化云, 吴学益, 朱建明,等. 韧性剪切作用下千枚岩中SiO2的迁移模拟实验——以金山金矿为例[J]. 矿物学报,1999,19:343-348.]
[38] Wu Xueyi,Huang Caifang,Zhang Kaiping, et al.The simulation experiment of activation in fault belt controlling Cu-Au deposits in Northeast Jiangxi province[J]. Geotectonica et Metallogenica,2002,26:216-222.[吴学益,黄彩芳, 张开平,等. 赣东北断裂带活化构造控制铜、金成矿及其模拟实验[J].大地构造与成矿学,2002,26:216-222.]
[39] Lasaga A C. Metamorphic reaction rate laws and development of isoogrades[J]. Mineralogy Magazine,1986,50:359-373.
[40] Bell T H, Hayward N. Episodic metamorphic reactions during orogenesis: The control of deformation partitioning on reaction sites and reaction duration[J]. Journal of Metamorphic Geology,1991,9:619-640.
[41] Dampster T J, Tanner P W G. The biotite isograde,Central Pyrenees: A deformed-controlled reaction[J]. Journal of Metamorphic Geology,1997,15:531-548.
[42] Harkey H. Structural controls in the distribution of gold at How Mine,Zimbabwe[J]. Economic Geology,1990,95: 83-89.
[43] Yang Yuangen. The new understanding of migration mechanism of components under ductile shearing[J]. Bulletin of Mineralogy,Petrology and Geochemistry,1994,13:202-205.[杨元根. 韧性剪切作用使成矿物质演化迁移机制的新认识[J]. 矿物岩石地球化学通讯,1994,13:202-205.]
[44] Dipple G, Ferry J M. Metamorphism and fluid flow in ductile shear zone[J]. Contribution to Mineralogy and Petrology,1992,112:149-164.
[45] Dipple G M,Wintsh R P,Andrews M S. Identification of the scales of differential element mobility in ductile fault zone[J]. Journal of Metamorphic Geology,1990,8:645-661.
[46] Beach A. The interrelations of transport deformation geochemistry in early Proterogaic shear zones in the Lewisian complex[J]. Philosophy of Transaction of the Royal Society of London (A),1976,280:569-604.
[47] Winchester J A,Max M D. Element mobility associated with syn-metamorphic shear zones near Scotchport,NW Mayo Ireland[J]. Journal of Metamorphic Geology,1980, 2:1-111.
[48] Glazner A F, Barttey J M.Volume loss,fluid flow and rate of strain in extensional mylonite from the central Mojave desert,California[J]. Journal of Structural Geology,1991,13:587-594.
[49] Selverstone J,Morteani G, Staude J M. Fluid channeling during ductile shearing transformation granodiorite into alumnus schist in the Tauern window,East Alps[J]. Journal of Metamorphic Geology,1991,9:419-431.
[50] Hickman M T, Glassley W E.The role of metamorphic fluid transport in the Rb-Sr isotopic resetting of shear zones: Evidence from Northern Stromfjord,West Greenland[J]. Contribution to Mineralogy and Petrology,1984,87:265-281.
[51] Su Q, Fullagar P D. Rb-Sr and Sm-Nd isotopic systematics during greenschist facies metamorphism and deformation: Examples from the southern Appalachian Blue Ridge[J]. Journal of Geology,1995,103:423-436.
[52] Strait J E, Cox S F. Fluid infiltration and volume change during mid-crustal mylonitization of Proterozic granite,King Island,Tasamania[J]. Journal of Metamorphic Geology,1998,16:197-212.
[53] Yang Xiaoyong. The variation of rare-Earth elements in process of ductile shearing: Discussion on the paper of “ Variation of REE content in shear zone and its mechanism”[J]. Acta of Petrology and Mineralogy,2000,19(1):45-49.[杨晓勇. 韧性剪切过程中稀土元素的变异——对“稀土元素在剪切带中含量变异及其变异机制”的讨论[J]. 岩石矿物学杂志,2000,19(1):45-49.]
[54] Yang Xiaoyong,Liu Deliang,Dai Xiaoping, et al. Study of REE variation of granite and its deformed tectonic rocks under ductile shearing[J]. Chinese Rare Earths,1999,20(1): 6-11.[杨晓勇,刘德良,戴晓平,等. 韧性变形条件下花岗质糜棱岩稀土元素变化特征研究——以郯庐断裂带南段管店岩体为例[J]. 稀土,1999,20(1):6-11.]
[55] Yang Xiaoyong,Yang Xueming,Liu Deliang,et al. A micro-structural evidences of tectonic superimposition (compound) by south part of Tancheng-Lujiang fault and Dabie-Jiangnan orogenic belt,China[J]. Acta Geophysica Sinica,1998,41(suppl.): 123-132.[杨晓勇,杨学明,刘德良,等. 郯庐断裂南段与大别—胶南造山带构造(叠加)的显微构造证据[J]. 地球物理学报,1998,41(增刊): 123-132.]
[56] Yang Xiaoyong,Liu Deliang,Wang Kuiren. Study on the variations of components of milonites from the ductile shear zones in the southern part of Tancheng-Lujiang fault belt[J]. Geological Journal China Universities,1997,3:263-271.[杨晓勇,刘德良,王奎仁. 郯庐断裂带南段中深层次韧性剪切带糜棱岩化过程成分变化规律研究[J]. 高校地质学报,1997,3(3):263-271.]
[57] Yang Xiaoyong,Liu Deliang,Zhang Jiaodong,et al. Study on the element migration and CO2 releasing in the southern ductile-brittle shear zone from the south Tan-Lu fault belt[J]. Acta Geologica Sinica,2002,76:335-346.[杨晓勇,刘德良,张交东,等. 郯庐断裂带南段双山韧—脆性剪切带物质迁移与CO2释放研究[J]. 地质学报,2002,76:335-346.]
[58] Tu Yinjiu,Yang Xiaoyong,Liu Deliang. Micro-ultrmicro-structural characteristics of the tectonites from the northern Huanglishu-Poliangting fault belt,east Anhui province[J]. China Geological Review,1999,45(6): 621-627.[涂荫玖,杨晓勇,刘德良. 皖东黄栗树—破凉亭断裂北段构造岩显微—超微变形特征及地质意义[J]. 地质论评,1999,45(6): 621-627. ]
[59] Yang Xiaoyong,Liu Deliang,Yang Xueming,et al. Characteristics of compositional migration in mylonites from the ductile shear zones of the southern Tancheng-Lujiang fault belt,Eastern Anhui province[J]. Acta Geologica Sinica,1998 ,72(1): 37-50.
[60] Yang X Y,Yang X M,Liu D L,et al.Fluid participation in ductile shear zone: Evidence from geological,geochemical and 18O/16O relations from south part of Tancheng-Lujiang fault belt,East China[J]. Chinese Science Bulletin,1998,43 (suppl.):152.
[61] Früh-Green G L. Inter dependence of deformation,fluid infiltration and reaction progress eroded in eclogites metagranitoids (Sesia gone,western Alps)[J]. Journal of Metamorphic Geology,1994,12:327-343.
[62] Mattey D,Jackson D H,Harris N B, et al.Isotopic constraints on fluid infiltration from an eclogites facies shear zone,Holsendy,Norway[J]. Journal of Metamorphic Geology,1994,12:311-325.
[63] Zhong Zengqiu,You Zhengdong. The composition variations and volume loss in ductile shear zone—Taking the Hetai ductile shear zone as an example[J]. Chinese Science Bulletin,1995,40:913-916.[钟增球,游振东. 剪切带的成分变异及体积亏损——以河台韧性剪切带为例[J]. 科学通报,1995,40:913-916.]
[64] Bell T H.Foliation development and refraction in metamorphism: Reactivation of earlier foliation and deregulation due to shifting patterns of deformation petitioning[J]. Journal of Metamorphic Geology,1986,4: 421-422.
[65] Ismat Z, Mitra G. Folding by cataclastic flow at shallow crustal levels in the Canyon Range,Sevier orogenic belt,west-central Utah[J]. Journal of Structural Geology,2000,23: 355-378. 
[66] Handy M R,Wissing S B, Streit L E. Frictional-viscous flow in mylonite with varied bimineralic composition and its effect on lithosphereic strength[J]. Tectonophysics,1999,303:175-191.

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