• 中国出版政府奖提名奖

    中国百强科技报刊

    湖北出版政府奖

    中国高校百佳科技期刊

    中国最美期刊

    留言板

    尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

    姓名
    邮箱
    手机号码
    标题
    留言内容
    验证码

    大别山超高压榴辉岩流变强度——来自高温高压实验的证据

    金振民 章军锋 GreenH.W. 金淑燕 王永锋

    金振民, 章军锋, GreenH.W., 金淑燕, 王永锋, 2001. 大别山超高压榴辉岩流变强度——来自高温高压实验的证据. 地球科学, 26(6): 574-580.
    引用本文: 金振民, 章军锋, GreenH.W., 金淑燕, 王永锋, 2001. 大别山超高压榴辉岩流变强度——来自高温高压实验的证据. 地球科学, 26(6): 574-580.
    JIN Zhenmin, ZHANG Junfeng, Green H.W., JIN Shuyan, WANG Yongfeng, 2001. RHEOLOGICAL STRENGTH OF UHP ECLOGITE FROM DABIE SHAN: EVIDENCES FROM HIGH p-T EXPERIMENTS. Earth Science, 26(6): 574-580.
    Citation: JIN Zhenmin, ZHANG Junfeng, Green H.W., JIN Shuyan, WANG Yongfeng, 2001. RHEOLOGICAL STRENGTH OF UHP ECLOGITE FROM DABIE SHAN: EVIDENCES FROM HIGH p-T EXPERIMENTS. Earth Science, 26(6): 574-580.

    大别山超高压榴辉岩流变强度——来自高温高压实验的证据

    基金项目: 

    国家重点基础研究发展规划 G19999075501

    美国自然科学基金 EAR-9725575

    详细信息
      作者简介:

      金振民(1941-), 男, 教授, 博士生导师, 1965年毕业于北京地质学院, 现从事岩石圈流变学和大陆深部构造研究

    • 中图分类号: P588.34+2;P589

    RHEOLOGICAL STRENGTH OF UHP ECLOGITE FROM DABIE SHAN: EVIDENCES FROM HIGH p-T EXPERIMENTS

    • 摘要: 利用Griggs型5GPa高压仪器, 在柯石英稳定域围压条件下(>3GPa)完成大别山超高压榴辉岩流变学实验, 建立了榴辉岩流变状态本构方程(流动律) : ε=Aexp(-Q/RTn, 应力指数(n)为3.4, 活化能(Q)为4 80kJ/mol, 结构常数(A)为103.3.实验结果表明: (1)作为两相矿物组成的榴辉岩, 其流变学强度在很大程度上取决于强相矿物(石榴石)和弱相矿物(绿辉石)含量比例; (2)天然榴辉岩塑性变形机制是以位错蠕变为主; (3)根据实验成果比较榴辉岩和上地幔方辉橄榄岩流变学强度相当, 两者耦合在大陆深俯冲10 0km左右深度发生拆沉作用可能性很小, 与上地幔上隆(upwelling)作用有关的造山期后伸展作用对超高压岩石折返更具有重要意义.

       

    • 图  1  高压实验样品装置

      Fig.  1.  High-pressure sample assembly used in experiments

      图  2  实验原始榴辉岩(a)和实验变形榴辉岩(b)的显微构造比较

      Grt.石榴石; Omp.绿辉石; Rt.金红石; Qz.石英

      Fig.  2.  Microstructural comparison of starting eclogite(a)and experimentally deformed eclogite(b)

      图  3  榴辉岩高温蠕变力学资料(围压3.0 GPa)

      a.应力-应变曲线; b.应变速率-流动应力及其对数关系; c.应变与差异应力关系; d.应力与温度关系

      Fig.  3.  Mechanical results of high-temperature creep of eclogite under 3.0 GPa pressure

      图  4  在相同实验条件下, 石榴子石岩、干榴辉岩、湿榴辉岩和绿辉石岩的流变强度比较

      Fig.  4.  Comparison of the rheological strength of garnetite, dry eclogite, wet eclogite and omphacite under similar experimental comditions

      表  1  榴辉岩实验原始材料组成和化学成分

      Table  1.   Composition of starting materials used in experiments

      表  2  榴辉岩高温高压流变实验条件和流变强度

      Table  2.   Summary of experimental conditions and rheological strength of eclogite

    • [1] Ringwoods A E, Green D H. An experimental investigation of the gabbro-eclogite transformation and some geophysical impli-cation[J]. Tectonophysics, 1966, 3: 383-427. doi: 10.1016/0040-1951(66)90009-6
      [2] Green D H, Ringwood A E. A comparison of recent experi-mental data on the gabbro garnet granulite-eclogite transition [J]. J Geology, 1972, 80: 277-288. doi: 10.1086/627731
      [3] Ito K, Kennedy G C. An experimental study of the basalt-gar-net granulite-eclogite transition[A]. In: Heacock J G, ed. The structure and physical properties of the earth's crust[C]. Washington D C: Am Geophys Union, 1971. 303-314.
      [4] Kushiro I, Aoki K. Origin of some eclogite inclusions in kim-berlite[J]. AmerMineral, 1968, 53: 1347-1367.
      [5] Ater P C, Eggler D H, Mc Callum M E. Petrology and geo-chemistry of mantle eclogite xenoliths from Colorado-Wyoming kimberlites: recycled ocean crust[A]. In: Kornprobst J, ed. Kimberlites Ⅱ : The mantle and crust-mantle relationships [C]. Netherlands: Elsevier Science Publisher, 1984. 309-318.
      [6] Karato S, Wang Z C, Liu B F. Plastic deformation of garnets: systematic and implication for the rheology of the mantle transi-tion zone[J]. Earth Planet Sci Lett, 1995, 130: 13-30. doi: 10.1016/0012-821X(94)00255-W
      [7] Raterron P, Jaoul O. High-temperature deformation of diopside single crystal Ⅰ. mechanical data[J]. JGeophys Res, 1991, 96: 14277-14286. doi: 10.1029/91JB01205
      [8] Chopin C. Coesite and pyrope in high-grade pelitic blueschists of the westernAlps: a first record and some consequences[J]. Contrib Mineral Petrol, 1984, 86: 107-118. doi: 10.1007/BF00381838
      [9] Smith D C. Coesite in clinopyroxene in the Caledonides and its implication for dynamics[J]. Nature, 1984, 310: 641-644. doi: 10.1038/310641a0
      [10] Xu S, Okey AI, Sengor AM C. Diamond from the Dabie Shan metamorphic rocks and its implication for tectonic setting [J]. Science, 1992, 256: 80-82. doi: 10.1126/science.256.5053.80
      [11] Sobolev N V, Shatsky V S. Diamond inclusions in garnets from metamorphic rocks: a new environment for diamond for-mation[J]. Nature, 1990, 343: 742-746. doi: 10.1038/343742a0
      [12] Dobrzhinetskaya L, Green H W, Wang S. Alpe Arami: a peridotite massif from depths ofmore than 300 kilometers[J]. Science, 1996, 271: 1841-1845. doi: 10.1126/science.271.5257.1841
      [13] Kirby S H, Kronenberg AK. Deformation of clinopyroxenite: evidence for a transition in flow mechanisms and semibrittle behavior[J]. J Geophys Res, 1984, 89(3): 177-192.
      [14] 王清晨, 从柏林. 大别山超高压变质岩的地球动力学意义[J]. 中国科学(D辑), 1996, 26(3): 271-281. doi: 10.3321/j.issn:1006-9267.1996.03.007
      [15] Wang X, Zhang R, Liou J G. UHPM terrane in east central China[A]. In: Coleman R G, Wang X, eds. Ultrahigh pressure metamorphism[C]. NewYork: Cambridge Universi-ty Press, 1995. 365-390.
      [16] Green HW, Broch R S. A newmolten salt cell for precision stress measurement at high pressure[J]. Eur J Mineral, 1989, 1: 213-219. doi: 10.1127/ejm/1/2/0213
      [17] Tingle TN, GreenHW, Young TE. Improvement toGriggs-Type apparatus for mechanical testing at high pressure and temperature[J]. Pure Appl Geophys, 1993, 141: 523-543. doi: 10.1007/BF00998344
      [18] 章军锋, 金振民, Green HW. 大陆深俯冲带中的水: 来自大别山超高压榴辉岩的证据[J]. 科学通报, 2000, 45(17): 1889-1894. doi: 10.3321/j.issn:0023-074X.2000.17.018
      [19] 金淑燕, 焦述强. 超高压榴辉岩中绿辉石组构测定及其流变学意义[J]. 地球科学——中国地质大学学报, 1998, 23(1): 37-40. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX801.009.htm
      [20] 陈晶, 王清晨. 榴辉岩中石榴石的塑性变形特征[J]. 中国科学(B辑), 1995, 25(10): 1116-1120. https://www.cnki.com.cn/Article/CJFDTOTAL-JBXK199510014.htm
      [21] Godard G, Van Roermund L M. Deformed-induced clinopy-roxene fabrics from eclogites[J]. J Struct Geol, 1995, 17: 1425-1443. doi: 10.1016/0191-8141(95)00038-F
      [22] Cordier P, Ratteron P, Wang Y. TEM investigation of dislo-cation microstructures of experimentally deformed silicate gar-net[J]. Phys Earth Planet Int, 1996, 97: 121-131. doi: 10.1016/0031-9201(96)03154-8
      [23] 吕古贤, 陈晶. 构造附加静水压力研究与含柯石英榴辉岩成岩深度测算[J]. 科学通报, 1988, 43(24): 2590-2620. https://www.cnki.com.cn/Article/CJFDTOTAL-KXTB199824002.htm
      [24] 王清晨, 刘景波, 从柏林. 构造超压能引起超高压变质作用吗[J]. 科学通报, 1999, 44(21): 2346-2350. doi: 10.3321/j.issn:0023-074X.1999.21.023
      [25] Ji S C, Martigndle J. Ductility of garnet as an indicatorof ex-tremely high temperature deformation[J]. J Struct Geol, 1996, 7: 985-996.
      [26] Brook B D, Kruhl TH. Short notes: ductility of garnet as an indicator of extremely high temperature: discussion[J]. J StructGeol, 1996, 11: 1369-1373.
      [27] Borch R S, Green H W. Deformation of peridotite at high pressure in a new molten salt cell: comparison of traditional and homologous temperature treatments[J]. Phy Earth planet Int, 1989, 55: 269-276. doi: 10.1016/0031-9201(89)90075-7
      [28] 徐树桐, 刘贻灿, 苏文, 等. 大别山超高压变质带面理化榴辉岩中变形石榴石的几何学和运动学特征及其大地构造意义[J]. 岩石学报, 1999, 15(3): 321-337. https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB199903000.htm
    • 加载中
    图(4) / 表(2)
    计量
    • 文章访问数:  3755
    • HTML全文浏览量:  420
    • PDF下载量:  5
    • 被引次数: 0
    出版历程
    • 刊出日期:  2001-11-25

    目录

      /

      返回文章
      返回