海南岛地壳厚度与泊松比结构

doi:10.11978/j.issn.1009-5470.2012.03.009

Abstract

Abstract: Crustal thickness (H) and Poisson’s ratio (v) are two important parameters to understand the interior of the Earth. Correlation between the two can reveal important information of the character of the crustal structure. Teleseismic receiver functions recorded by the permanent seismic stations distributed around Hainan Island are extracted to search the Ps converted wave and its multiples from discontinuities in the crust and mantle, and some artificial earthquake probing results are taken for references to determine the average thickness and the Poisson’s ratio beneath Hainan Island. The results show that the crust thickness of Hainan is 26?31km and the Poisson’s ratio is lower than 0.26 beneath the island for the widespread granite and volcano activities. This area seems to display a positive correlation between H and v, which indicates that the tectonic extension function is mainly caused the obvious reduction of lower crustal thickness; Poisson’s ratios in some zones are extremely low, possibly due to fold-thrust belts of the upper crust.

Key words: Hainan Island, receiver function, H-( stacking, crustal thickness, Poisson’s ratio

CLC Number:

P738.4

HUANG Hai-bo, QIU Xue-lin, XIA Shao-hong. Crustal structure and Poisson’s ratio beneath Hainan Island[J].Journal of Tropical Oceanography, 2012, 31(3): 65-70.

References

[1] 徐德如, 陈广浩, 夏斌, 等. 海南岛几个重大基础地质问题评述[J]. 地质科技情报, 2003, 22(4): 37-44.

[2] 李建生. 海南岛地区断裂构造体系与区域稳定性[J]. 海洋科学, 1991, (3): 19-21.

[3] BULAND R, CHAPMAN C H. The computation of seismic travel times[J]. Bulletin of the Seismological Society of America, 1983, 73(5): 1271-1302.

[4] OWENS T J, TAYLOR S R, ZANDT G. Crustal structure at Regional Seismic Test Network stations determined from inversion of broadband teleseismic P waveforms[J]. Bulletin of the Seismological Society of America, 1987, 77(2): 631-662.

[5] 刘启元, KIND R, 李顺成. 中国数字地震台网的接收函数及其非线性反演[J]. 地球物理学报, 1997, 40(3): 356-368.

[6] YUAN X, SOBOLEV S V, KIND R, et al. Subduction and collision processes in the Central Andes constrained by converted seismic phases[J]. Nature, 2000, 408: 958-961.

[7] 丘学林, 曾钢平, 胥颐, 等. 南海西沙石岛地震台下的地壳结构研究[J]. 地球物理学报, 2006, 49(6): 1720-1729.

[8] ZHU LUPEI, KANAMORI H. Moho depth variation in southern California from teleseismic receiver functions[J]. Journal of Geophysical Research, 2000, 105(B2): 2969-2980.

[9] KENNETT B L N. Seismic wave propagation in stratified media[M]. New York: Cambridge University Press, 1983: 231-274.

[10] LANGSTON C A. Structure under Mount Rainier, Washington, inferred from teleseismic body waves[J]. Journal of Geophysical Research, 1979, 84(B9): 4749-4762.

[11] AMMON C J, RANDALLl G E. On the nonuniqueness of receiver function inversions[J]. Journal of Geophysical Research, 1990, 95(B10): 15303-15318.

[12] 陈九辉. 远震体波接收函数方法: 理论与应用[D]. 北京: 中国地震局地质研究所, 2007:16-20.

[13] QIU XUELIN, PRIESTLEY K, MCKENZIE D. Teleseismic P-waveform receiver function analysis and its application to Qiongzhong station(QIZ) of Hainan Island, NW South China Sea[J]. Journal of Geosciences of China, 2002, 4(1): 1-8.

[14] 李志雄, 雷建设, 赵大鹏, 等. 海南岛及邻区地壳三维P波速度结构[J]. 地震学报, 2008, 30(5): 441-448.

[15] 吴庆举, 曾融生. 用宽频带远震接收函数研究青藏高原的地壳结构[J]. 地球物理学报, 1998, 41(5): 669-679.

[16] 姚伯初. 南海北部陆缘的地壳结构及构造意义[J]. 海洋地质与第四纪地质, 1998, 18(2): 1-16.

[17] QIU XUELIN, YE SANYU, WU SHIMIN, et al. Crustal structure across the Xisha Trough, northwestern South China Sea[J]. Tectonophysics, 2001, 341(1): 179-193.

[18] 熊小松, 高锐, 李秋生, 等. 深地震探测揭示的华南地区莫霍面深度[J]. 地球学报, 2009, 30(6): 774-786.

[19] 嵇少丞, 王茜, 杨文采. 华北克拉通泊松比与地壳厚度的关系及其大地构造意义[J]. 地质学报, 2009, 83(3): 324-330.

[20] JI SHAOCHENG, WANG QIAN, SALISBURY M H. Composition and tectonic evolution of the Chinese continental crust constrained by Poisson's ratio[J]. Tectonophysics, 2009, 463(1-4): 15-30.

Crustal structure and Poisson’s ratio beneath Hainan Island

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