地幔深部运动,全球构造格局及中国地震应力场背景c
DEEP MANTLE FLOW, GLOBAL TECTONIC PATTERN AND THE BACKGROUND OF SEISMIC STRESS FIELD IN CHINA
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摘要: 本文探讨了形成岩石层内部应力场两种可能的力源:地幔对流产生的作用于岩石层底部的切向拖曳力和沿板块边界分布力系对岩石层内应力场的影响.发现这两种力同时作用控制了中国大陆应力场的基本格局,它们产生的应力场主压应力方向和用地震震源机制解、钻孔应力测量及地质构造推断的中国应力场分布基本吻合.Abstract: In this paper we investigate the sources of two kinds of forces to form the stress field in the lithosphere. They are the drag force caused by mantle flow and the force system along plate boundaries. The results show that both forces control the basic stress pattern in China and the computed main compressive stresses can fit with the stress patterns constructed by focal mechanisms, in - situ stress measurements in boreholes and that deduced from other geophysical and geological observations.
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[1] McNutt. M.,1987. Lithospheric strss and deformation. Rev. Geophys. . 25, 1245——1253
[2] Zoback,M. L——1987 Global pattern of tectonic intraplate stresses. Abstructs, 3, 1116 IUGG XIX general assembly, Aug——9——22, Vanconver. Canada.
[3] Xu. Z. H——Wang, S. Y. . Huang, Y. R. and Gao. A. J 1987 Tectonic stress field of China's continent deduced from a large number of small earthquakes.Ahstnrcn.s. 3. 1115, IUGG XIX general assembly, Aug——9——22, Vancouver, Canada.
[4] 许忠淮、汪素云.黄雨蕊、高阿甲、金小锋、常向东,1987.山多个小地震推断的青甘和川滇地区构造应力场的方向特征.地球物理学报,30. 476——486.
[5] Richardson, R. M.,Solomon. S. C. and Sleep. N. H.. 1979. Tectonic stress in the plates. Rev. Geophys. Space.Physics. 17, 981——1019.
[6] 汪素石、陈培湃,1980.中国及邻区现代构造应力场的数字模拟.地球物理学报,23, 35——45.
[7] 汪素云、许忠淮,1985.,中国东部大陆的地震构造应力场.地震学报,7. 17——32.
[8] 俞言祥、许忠淮、汪素石,1989对我国大陆地壳应力场观测结果的一种解释,八十年代中国地球物理学进展,284—— 292.地球物理学报编辑委员会编,北京.
[9] Fu, R. S. and Huang. P. H,1983. The global stress field in the lithosphere obtained from the satellite gravitational harnwnics. Pho,,. Eurth. Phrrrel. Truer.,31, 269——276.
[10] Runcorn. S. K.,1967. Flow in the mantle interred from the low degree harmonics of the geopotential
[11] Geupfos.J. R.u.str, Suu.,14, 375——384.
[12] 傅容珊、黄培华,1983.利用卫星重力数据计算中国及邻区岩石层内应力场.地球物理学报,26, Supp.641——651
[13] Pettier. W. 8..1985—— Mantle convection and viscoelasticity. ,4rur. Rua. Fluid Much.,17. 561——608
[14] Wu. P. and Pettier. W. 8..1983.Glacial isostatie adjustment and the li——ec air gravity anomaly as a constraint on deep mantle viscosity. Guoplzv.s, J. R. aslr. Suu.,74:377——450.
[15] Stacey. F. D. . 1981.地球物理学基础,197——203.地震出版社,北京.
[16] Loper. D. E. ,1985—— A simple model of whole mantle convection. J. Guuphr.s. Ru.s.,90. 1809——1836.
[17] Davies, G. F. ,1980. Thernal histories of convection earth models and constraints on radiogenic heat produrtion in the earth. J. Geophys. Ru.e.,85. 25l 7——2530.
[18] Schubert.G.,Slevenson, D. and Cassen, P. ,1980. Whole planet cooling and the radiogenic heat source contents of the earth and moon. J. Genphv.s, Ru,r.,85. 2531——2538.
[19] Fu. R. S. .1986. A numerical study of the effects of boundary conditions on mantle convectian models constrained to tit the low degree geoid coefficients. Phvs. Ecrrrh. Plmrer. Inter,44. 257——263
[20] 博容珊,1989.地球人地水准面异常以及地鳗对流的物理数学模型.计算地球物理学专辑,地球物理学报.
[21] Fll, R. S,1989. Earth's geoid anomaly, mantle convection and sU——ess field under the lithosphere. Plrv.s.
[22] Eurrh.54,50——54.
[23] Liu. H. S. .1985. Geodynamical basis for crustal deformation under the Tibehm plateau. Phys. Eurrh. 40. 43——60.
[24] Coodc, A. M——1966. An analysis of major tectonic features. Geophys. J. R. user. Soc. 12, 55——66.
[25] Lerch. F.J——IClosko. S. M——Laubscher, R. E. and Wagner, C. A,1979. Gravity model improvement using Geos 3 GEM 9 and 10l.J. Geophys.Res.,84. 3897——3974.
[26] 马杏垣,1986.中国及邻近海域岩石圈动力学图.地质出版社,北京.
[27] 邓起东、张裕明、许桂林、范福田,1979.中国构造应力场特征及其板块运动的关系.地震地质,11一22
[28] 黄培华、傅容珊,1983.中国岩石层底面地鳗对流状态的探讨.地球物理学报,26, 39——47[1] McNutt. M.,1987. Lithospheric strss and deformation. Rev. Geophys. . 25, 1245——1253
[2] Zoback,M. L——1987 Global pattern of tectonic intraplate stresses. Abstructs, 3, 1116 IUGG XIX general assembly, Aug——9——22, Vanconver. Canada.
[3] Xu. Z. H——Wang, S. Y. . Huang, Y. R. and Gao. A. J 1987 Tectonic stress field of China's continent deduced from a large number of small earthquakes.Ahstnrcn.s. 3. 1115, IUGG XIX general assembly, Aug——9——22, Vancouver, Canada.
[4] 许忠淮、汪素云.黄雨蕊、高阿甲、金小锋、常向东,1987.山多个小地震推断的青甘和川滇地区构造应力场的方向特征.地球物理学报,30. 476——486.
[5] Richardson, R. M.,Solomon. S. C. and Sleep. N. H.. 1979. Tectonic stress in the plates. Rev. Geophys. Space.Physics. 17, 981——1019.
[6] 汪素石、陈培湃,1980.中国及邻区现代构造应力场的数字模拟.地球物理学报,23, 35——45.
[7] 汪素云、许忠淮,1985.,中国东部大陆的地震构造应力场.地震学报,7. 17——32.
[8] 俞言祥、许忠淮、汪素石,1989对我国大陆地壳应力场观测结果的一种解释,八十年代中国地球物理学进展,284—— 292.地球物理学报编辑委员会编,北京.
[9] Fu, R. S. and Huang. P. H,1983. The global stress field in the lithosphere obtained from the satellite gravitational harnwnics. Pho,,. Eurth. Phrrrel. Truer.,31, 269——276.
[10] Runcorn. S. K.,1967. Flow in the mantle interred from the low degree harmonics of the geopotential
[11] Geupfos.J. R.u.str, Suu.,14, 375——384.
[12] 傅容珊、黄培华,1983.利用卫星重力数据计算中国及邻区岩石层内应力场.地球物理学报,26, Supp.641——651
[13] Pettier. W. 8..1985—— Mantle convection and viscoelasticity. ,4rur. Rua. Fluid Much.,17. 561——608
[14] Wu. P. and Pettier. W. 8..1983.Glacial isostatie adjustment and the li——ec air gravity anomaly as a constraint on deep mantle viscosity. Guoplzv.s, J. R. aslr. Suu.,74:377——450.
[15] Stacey. F. D. . 1981.地球物理学基础,197——203.地震出版社,北京.
[16] Loper. D. E. ,1985—— A simple model of whole mantle convection. J. Guuphr.s. Ru.s.,90. 1809——1836.
[17] Davies, G. F. ,1980. Thernal histories of convection earth models and constraints on radiogenic heat produrtion in the earth. J. Geophys. Ru.e.,85. 25l 7——2530.
[18] Schubert.G.,Slevenson, D. and Cassen, P. ,1980. Whole planet cooling and the radiogenic heat source contents of the earth and moon. J. Genphv.s, Ru,r.,85. 2531——2538.
[19] Fu. R. S. .1986. A numerical study of the effects of boundary conditions on mantle convectian models constrained to tit the low degree geoid coefficients. Phvs. Ecrrrh. Plmrer. Inter,44. 257——263
[20] 博容珊,1989.地球人地水准面异常以及地鳗对流的物理数学模型.计算地球物理学专辑,地球物理学报.
[21] Fll, R. S,1989. Earth's geoid anomaly, mantle convection and sU——ess field under the lithosphere. Plrv.s.
[22] Eurrh.54,50——54.
[23] Liu. H. S. .1985. Geodynamical basis for crustal deformation under the Tibehm plateau. Phys. Eurrh. 40. 43——60.
[24] Coodc, A. M——1966. An analysis of major tectonic features. Geophys. J. R. user. Soc. 12, 55——66.
[25] Lerch. F.J——IClosko. S. M——Laubscher, R. E. and Wagner, C. A,1979. Gravity model improvement using Geos 3 GEM 9 and 10l.J. Geophys.Res.,84. 3897——3974.
[26] 马杏垣,1986.中国及邻近海域岩石圈动力学图.地质出版社,北京.
[27] 邓起东、张裕明、许桂林、范福田,1979.中国构造应力场特征及其板块运动的关系.地震地质,11一22
[28] 黄培华、傅容珊,1983.中国岩石层底面地鳗对流状态的探讨.地球物理学报,26, 39——47
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