六面顶压机高温高压弹性波速测量装置样品室温度梯度的校正

刘巍; 杜建国; 于泳; 白利平; 王传远

doi:10.11858/gywlxb.2003.02.003

六面顶压机高温高压弹性波速测量装置样品室温度梯度的校正

doi: 10.11858/gywlxb.2003.02.003

1.
中国地震局分析预报中心，北京 100036；
2.
中国地震局地质研究所，北京 100029

详细信息

通讯作者:
刘巍

计量
- 文章访问数: 7707
- HTML全文浏览量: 356
- PDF下载量: 889
出版历程
- 收稿日期: 2002-10-18
- 修回日期: 2003-01-20
- 发布日期: 2003-06-05

Correction of Temperature Gradient in Sample Cell of Pulse Transmission Experimental Setup on Multi-Anvil High Pressure Apparatus

1.
Center for Analysis and Prediction, China Seismological Bureau, Beijing 100036, China;
2.
Institute of Geology, China Seismological Bureau, Beijing 100029, China

More Information

Corresponding author: LIU Wei

摘要

摘要: 大腔体六面顶压机波速测量装置的样品室内存在着较大的温度梯度。根据实验观测的样品室内的温度分布数据和在一定温度条件下波速随温度升高呈线性变化的特征，运用理论分析和计算相结合的方法对样品的弹性波速进行了校正。以斜长角闪岩为例，对其实验测量的纵波速度（vP）进行了校正，并与原来的数据作了对比：波速校正量绝对值随着温度的升高逐渐增大；在2.0 GPa、530 ℃时，样品X和样品Y校正后的vP比未校正的vP分别减小了0.270 km/s（3.3%）和0.118 km/s（1.5%）。这种方法明显地提高了波速测量结果的精度，有助于更准确地进行地球物理资料的解释。
- 高温高压实验 /
- 弹性波速测量 /
- 温度梯度校正 /
- 走时
Abstract: There is a remarkable temperature gradient in the sample cell in the pulse transmission experimental setup on a multi-anvil high pressure apparatus. The elastic wave velocity was corrected by combination of experiment, theory analysis, and computation in terms of the experimental data on temperature distribution in the sample and the linear decrease of temperature dependence of elastic wave velocities in rocks at a given temperature range. The experimental vP in amphibolite was corrected by this method and compared with the vP without correction: the absolute correction value turned greater as the temperature increased; at 530 ℃, the greatest correction of velocities in the sample X and sample Y were up to -0.270 km/s and -0.118 km/s with the decreases of 3.3% and 1.5%, respectively. This method improves the accuracy of vP measurement in high pressure and temperature experiments, which is useful to interpret geophysical data by combining the experimental results.
- high pressure and temperature experiment /
- elastic wave velocity measurement /
- temperature gradient /
- travel time

HTML全文

参考文献(21)

Xie H S, Zhang Y M, Xu H G, et al. A New Method of Measuring the Elastic Wave Velocity of Rocks and Minerals at High Pressures and High Temperatures and Its Significance [J]. Science in China, 1993, 36B(10): 1276-1280.

Xie H S. Introduction to Material Science of the Earth Interior [M]. Beijing: Science Press, 1997: 50. (in Chinese)

谢鸿森．地球物质科学导论 [M]. 北京: 科学出版社, 1997: 50．

Ito K, Tatsumi Y. Measurement of Elastic Wave Velocities in Granulite and Amphibolite Having Identical H2O-Free Bulk Compositions up to 850 ℃ at 1 GPa [J]. Earth Planet Sci Lett, 1995, 133: 255-264.

Kern H, Schenk V. Elastic Wave Velocity in Rocks from a Lower Crustal Section in Northern Alabria(Italy) [J]. Phys Earth Planet Inter, 1985, 40: 147-160.

Kern H, Tubia J M. Pressure and Temperature Dependence of P-and S-Wave Velocities, Seismic Anisotropy And Density of Sheared Rocks from the Alpujata Massif(Ronda Peridotites, Southern Spain) [J]. Earth Planet Sci Lett, 1993, 119: 191-205.

Kern H, Liu B, Popp T. Relationship between Anisotropy of P and S Wave Velocities And Anisotropy of Attenuation in Serpentinite and Amphibolite [J]. J Geophys Res, 1997, 102(B2): 3051-3065.

Lebedev E B, Kern H. The Effect of Hydration and Dehydration Reactions on Wave Velocities in Basalts [J]. Tectonophysics, 1999, 308: 331-340.

Matsushima S. Partial Melting of Rocks Observed by the Sound Velocity Method and the Possibility of a Quasi -Dry Low Velocity Zone in the Upper Mantle [J]. Phys Earth Planet Inter, 1989, 55: 306-312.

Ito K. Effects of H2O on Elastic Wave Velocities in Ultrabasic Rocks at 900 ℃ under 1 GPa [J]. Phys Earth Planet Inter, 1990, 61: 260-268.

Kern H. Elastic-Wave Velocity in Crustal and Mantle Rocks at High Pressure and Temperature: The Role of the High-Low Quartz Transition and of Dehydration Reactions [J]. Phys Earth Planet Inter, 1982, 29: 12-23.

Popp T, Kern H. Thermal Dehydration Reactions Characterised by Combined Measurements of Electrical Conductivity and Elastic Wave Velocities [J]. Earth Planet Sci Lett, 1993, 120: 43-57.

Zhao Z D, Gao S, Luo T C, et al. Origin of the Crustal Low Velocity Layer of Qinling and North China: Evidence from Laboratory Measurement of P-Wave Velocity in Rocks at High p-T Conditions [J]. Acta Geophysica Sinica, 1996, 39(5): 637-652. (in Chinese)

赵志丹, 高山, 骆庭川, 等．秦岭和华北地区地壳低速层的成因探讨--岩石高温高压实验证据 [J]．地球物理学报, 1996, 39(5): 637-652．

Zhou W G, Xie H S, Zhao Z D, et al. Effect of the Phase Transition on the Compressional Wave Velocity for a Trachybasalt at High Temperature and High Pressure [J]. Chin Sci Bull, 1999, 44(15): 1415-1418.

Yue L X, Xie H S, Liu C Q, et al. Compressional Velocity and Attenuation in Amphibolite at 2. 0 GPa and up to 1200 ℃ [J]. Chinese Journal of High Pressure Physics, 2002, 16(3): 176-182. (in Chinese)

岳兰秀, 谢鸿森, 刘丛强, 等．2. 0 GPa、室温至1200 ℃条件下斜长角闪岩的纵波速度及其衰减 [J]. 高压物理学报, 2002, 16(3): 176-182. [15] Liu W, Du J G, Bai L P, et al. Compressional Elastic Wave Velocities of Serpentinized Olivine-Bearing Pyroxenite up to 960 ℃ at 1. 0 GPa [J]. J Phys(Condensed Matter), 2002, 14: 11355-11358.

Liu W, Du J G, Bai L P, et al. Compressional Elastic Wave Velocities of Serpentinized Pyroxenite at High Pressures and High Temperatures and Its Geological Significance [J]. Acta Seismologica Sinica, 2002, 15(4): 456-461.

Tatsumi Y, Ito K, Goto A. Elastic Wave Velocites in Isochemical Granulite and Amphibolite: Origin of a Low-Velocity Layer at the Slab/Mantle Wedge Interface [J]. Geophys Res Lett, 1994, 21(1): 17-20.

Yue L X. The Study of Seismic Velocity and Attenuation of Eclogite and Amphibolite at High Temperature and High Pressure [D]. Guiyang: Master Thesis of Institute of Geochemistry, Chinese Academy of Science, 2001: 18. (in Chinese)

岳兰秀．高温高压下榴辉岩和斜长角闪岩的弹性波速和衰减的研究 [D]. 贵阳: 中国科学院地球化学研究所, 2001: 18.

施引文献

资源附件(0)

访问统计