Citation: | Ruixun Liu, Guxian Lü, Fangzheng Wang, Changshan Wei, Chusun Guo. Methods for Calculation of Geogenetic Depth. Journal of Earth Science, 2004, 15(2): 145-151. |
Some current methods for the calculation of the geogenetic depth are based on the hydrostatic model, it is induced that the depth in certain underground place is equal to the pressure divided by the specific weight of rock, on the assumption that the rock is hydrostatic and overlain by no other force but gravity. However, most of rock is in a deformation environment and non hydrostatic state, especially in an orogenic belt, so that the calculated depth may be exaggerated in comparison with the actual depth according to the hydrostatic formula. In the finite slight deformation and elastic model, the relative actual depth value from the 3 axis strain data was obtained with the measurement of strain including that of superimposed tectonic forces but excluding that of time factor for the strain. If some data on the strain speed are obtained, the depth would be more realistically calculated according to the rheological model because the geological body often experiences long term creep strains.
Briegel, U., Goetze, C., 1978. Estimates of Differential Stress Recorded in the Dislocation Structure of Lochseiten Limestone, Switzerland. Tectonophysics, 48: 61-76 doi: 10.1016/0040-1951(78)90086-0 |
Chen, J., Wang, Q. C., Zhai, M.G., 1995. Plastic Deformation of Garnet in Eclogite. Science in China(Series B), 39(1): 1 -8 |
Hast, H., 1969. The State of Stress in the Upper Part of the Earth Crust. Tectonophysics, 8: 169-211 doi: 10.1016/0040-1951(69)90097-3 |
Heim, A., 1978. Untersuchugen Unben Der Mechanismus Der Gebirgsbildung. Bd II, Basel |
Kelvin, W. T., 1875. Elasticity. Ninth Edition. Encyclopedia Britannica, London. 135-174 |
Lin, C. Y., Shi, L. B., He, Y.M., 1990. Rheological Features in the Upper Mantle beneath North China. In: Liu, R. X., ed., Collected Papers of the Features and Dynamics of Upper Mantle in China. Seismic Publishing House, Beijing |
Lü, G. X., Chen, J., Li, X. B., 1998. The Formation Depth of Coesite-Bearing Eclogite, Dabie UHPMZone, China. Chinese Science Bulletin, 43(24): 2590- 2602(in Chinese) doi: 10.1360/csb1998-43-24-2590 |
Lü, G. X., Chen, J., Liu, R.X., 1999. The Formation Depth of Coesite-Bearing Eclogite, Dabie UHPMZone, China, Modified by Tectono-Original Additional Hydrostatic Pressure. Chinese Sci. Bull. , 44(5): 398-412 doi: 10.1007/BF02977876 |
Lü, G. X., 1995. On Additional Tectono-Hydrostatic Pressure. Chinese Sci. Bull. , 44(3): 286(in Chinese) |
Maxwell, J., 1868. On the Dynamical Theory of Gases. Phil. Mag. , 4(35): 129-185 |
Miyashiro, A., 1964. Metamorphism and Metamorphic Belt. Georg Allen and Verwin, London |
Weathers, M.S., Bird, J.M., Cooperm, R. R., 1997. Differential Stress Determined from Deformation Induced Microstructures of the Moine Thrust. J. Geophys. Res. , 84(B): 7495-7509 doi: 10.1029/JB084iB13p07495 |
Twiss, R. J., 1977. Theory and Applicability of a Recrystallized Grain Size Paleopiezometer. Pure Appl. Geophys. , 115: 227 -244 doi: 10.1007/BF01637105 |
Wang, Q.C., Liu, J. B., Cong, B. L., 1999. Can the Ultrahigh Pressure Metamorphism be Caused by the Tectonic Overpressure? Chinese Sci. Bull. , 44(21): 2364- 2350(in Chinese) doi: 10.1007/BF02885943 |
Wang, R., Ding, Z. Y., Yin, Y. Q., 1979. The Origin of Solid Mechanism. Geol. Publishing House, Beijing |
Динник, А. Н. О., 1937. Работах Связанньх С Проблемои УправленияКровлейВСбТрудьгКоииссииПоУправлени Кровлей И Докады На 1 Вседонецкои Со-Веш. По Управлению Кровлей. Харков-КиевОНТИ УССР |