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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 龔源成(Yuancheng Gung) | |
dc.contributor.author | Li-Wei Chen | en |
dc.contributor.author | 陳力維 | zh_TW |
dc.date.accessioned | 2021-05-15T17:50:53Z | - |
dc.date.available | 2014-08-21 | |
dc.date.available | 2021-05-15T17:50:53Z | - |
dc.date.copyright | 2014-08-21 | |
dc.date.issued | 2014 | |
dc.date.submitted | 2014-08-18 | |
dc.identifier.citation | Alford, R. (1986), Shear data in the presence of azimuthal anisotropy: Dilley Texas, paper presented at 1986 SEG Annual Meeting, Society of Exploration Geophysicists.
Angelier, J., J.-C. Lee, H.-T. Chu, J.-C. Hu, C.-Y. Lu, Y.-C. Chan, L. Tin-Jai, Y. Font, B. t. Deffontaines, and T. Yi-Ben (2001), Le seisme de Chichi (1999) et sa place dans l'orogene de Taiwan, Comptes Rendus de l'Academie des Sciences-Series IIA-Earth and Planetary Science, 333(1), 5-21. Bos, A. G., W. Spakman, and M. C. Nyst (2003), Surface deformation and tectonic setting of Taiwan inferred from a GPS velocity field, Journal of Geophysical Research: Solid Earth (1978–2012), 108(B10). Brocher, T. M., and N. I. Christensen (1990), Seismic anisotropy due to preferred mineral orientation observed in shallow crustal rocks in southern Alaska, Geology, 18(8), 737-740. Campillo, M., and A. Paul (2003), Long-range correlations in the diffuse seismic coda, Science, 299(5606), 547-549. Chang, C.-P., T.-Y. Chang, J. Angelier, H. Kao, J.-C. Lee, and S.-B. Yu (2003), Strain and stress field in Taiwan oblique convergent system: constraints from GPS observation and tectonic data, Earth and Planetary Science Letters, 214(1), 115-127. Chang, E. T., W.-T. Liang, and Y.-B. Tsai (2009), Seismic shear wave splitting in upper crust characterized by Taiwan tectonic convergence, Geophysical Journal International, 177(3), 1256-1264. Chen, Y. N., Y. Gung, S. H. You, S. H. Hung, L. Y. Chiao, T. Y. Huang, Y. L. Chen, W. T. Liang, and S. Jan (2011), Characteristics of short period secondary microseisms (SPSM) in Taiwan: The influence of shallow ocean strait on SPSM, Geophysical Research Letters, 38(4). Crampin, S. (1994), The fracture criticality of crustal rocks, Geophysical Journal International, 118(2), 428-438. Godfrey, N. J., N. I. Christensen, and D. A. Okaya (2000), Anisotropy of schists: contribution of crustal anisotropy to active source seismic experiments and shear wave splitting observations, Journal of Geophysical Research: Solid Earth (1978–2012), 105(B12), 27991-28007. Hennino, R., N. Tregoures, N. Shapiro, L. Margerin, M. Campillo, B. Van Tiggelen, and R. Weaver (2001), Observation of equipartition of seismic waves, Physical Review Letters, 86(15), 3447. Hsu, Y.-J., S.-B. Yu, M. Simons, L.-C. Kuo, and H.-Y. Chen (2009), Interseismic crustal deformation in the Taiwan plate boundary zone revealed by GPS observations, seismicity, and earthquake focal mechanisms, Tectonophysics, 479(1), 4-18. Huang, B. S., W. G. Huang, W. T. Liang, R. J. Rau, and N. Hirata (2006), Anisotropy beneath an active collision orogen of Taiwan: Results from across islands array observations, Geophysical research letters, 33(24). Huang, T., Y. Chen, Y. Gung, L. Chiao, W. Liang, and S. Lee (2013), Resolving the crustal seismic anisotropy of Taiwan using ambient seismic noises, paper presented at AGU Fall Meeting Abstracts. Johnston, J. E., and N. I. Christensen (1995), Seismic anisotropy of shales, Journal of Geophysical Research: Solid Earth (1978–2012), 100(B4), 5991-6003. Kim, K.-H., J.-M. Chiu, J. Pujol, K.-C. Chen, B.-S. Huang, Y.-H. Yeh, and P. Shen (2005), Three-dimensional VP and VS structural models associated with the active subduction and collision tectonics in the Taiwan region, Geophysical Journal International, 162(1), 204-220. Klosko, E., F. Wu, H. Anderson, D. Eberhart‐Phillips, T. McEvilly, E. Audoine, M. Savage, and K. Gledhill (1999), Upper mantle anisotropy in the New Zealand region, Geophysical Research Letters, 26(10), 1497-1500. Kuo‐Chen, H., F. T. Wu, D. Okaya, B. S. Huang, and W. T. Liang (2009), SKS/SKKS splitting and Taiwan orogeny, Geophysical Research Letters, 36(12). Kuo‐Chen, H., F. T. Wu, and S. W. Roecker (2012), Three‐dimensional P velocity structures of the lithosphere beneath Taiwan from the analysis of TAIGER and related seismic data sets, Journal of Geophysical Research: Solid Earth (1978–2012), 117(B6). Kuo, B. Y., C. C. Chen, and T. C. Shin (1994), Split S waveforms observed in northern Taiwan: implications for crustal anisotropy, Geophysical research letters, 21(14), 1491-1494. Lewis, M. A., and P. Gerstoft (2012), Shear wave anisotropy from cross-correlation of seismic noise in the Parkfield pilot hole, Geophysical Journal International, 188(2), 626-630. Lobkis, O. I., and R. L. Weaver (2001), On the emergence of the Green’s function in the correlations of a diffuse field, The Journal of the Acoustical Society of America, 110(6), 3011-3017. Longuet-Higgins, M. S. (1950), A theory of the origin of microseisms, Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 243(857), 1-35. Mehta, K., R. Snieder, and V. Graizer (2007), Downhole receiver function: a case study, Bulletin of the Seismological Society of America, 97(5), 1396-1403. Miyazawa, M., R. Snieder, and A. Venkataraman (2008), Application of seismic interferometry to extract P-and S-wave propagation and observation of shear-wave splitting from noise data at Cold Lake, Alberta, Canada, Geophysics, 73(4), D35-D40. Nakata, N., and R. Snieder (2012), Estimating near‐surface shear wave velocities in Japan by applying seismic interferometry to KiK‐net data, Journal of Geophysical Research: Solid Earth (1978–2012), 117(B1). Rau, R.-J., W.-T. Liang, H. Kao, and B.-S. Huang (2000), Shear wave anisotropy beneath the Taiwan orogen, Earth and Planetary Science Letters, 177(3), 177-192. Schulz, L. (1949), A Direct Method of Determining Preferred Orientation of a Flat Reflection Sample Using a Geiger Counter X‐Ray Spectrometer, Journal of Applied Physics, 20(11), 1030-1033. Shapiro, N. M., and M. Campillo (2004), Emergence of broadband Rayleigh waves from correlations of the ambient seismic noise, Geophysical Research Letters, 31(7). Silver, P. G. (1996), Seismic anisotropy beneath the continents: Probing the depths of geology, Annual Review of Earth and Planetary Sciences, 24, 385-432. Silver, P. G., and W. W. Chan (1991), Shear wave splitting and subcontinental mantle deformation, Journal of Geophysical Research: Solid Earth (1978–2012), 96(B10), 16429-16454. Snieder, R. (2004), Extracting the Green’s function from the correlation of coda waves: A derivation based on stationary phase, Physical Review E, 69(4), 046610. Snieder, R., and K. Wapenaar (2010), Imaging with ambient noise, Physics Today, 63(9), 44-49. Stehly, L., M. Campillo, and N. Shapiro (2006), A study of the seismic noise from its long‐range correlation properties, Journal of Geophysical Research: Solid Earth (1978–2012), 111(B10). Thomsen, L. (1988), Reflection seismology over azimuthally anisotropic media, Geophysics, 53(3), 304-313. Vauchez, A., and A. Nicolas (1991), Mountain building: strike-parallel motion and mantle anisotropy, Tectonophysics, 185(3), 183-201. Wu, Y. M., C. H. Chang, L. Zhao, J. B. H. Shyu, Y. G. Chen, K. Sieh, and J. P. Avouac (2007), Seismic tomography of Taiwan: Improved constraints from a dense network of strong motion stations, Journal of Geophysical Research: Solid Earth (1978–2012), 112(B8). Wu, Y.-M., L. Zhao, C.-H. Chang, and Y.-J. Hsu (2008), Focal-mechanism determination in Taiwan by genetic algorithm, Bulletin of the Seismological Society of America, 98(2), 651-661. Yu, S.-B., H.-Y. Chen, and L.-C. Kuo (1997), Velocity field of GPS stations in the Taiwan area, Tectonophysics, 274(1), 41-59. Zatsepin, S. V., and S. Crampin (1997), Modelling the compliance of crustal rock—I. Response of shear-wave splitting to differential stress, Geophysical Journal International, 129(3), 477-494. 何春蓀 (1982), 臺灣地體構造的演變, 台灣地質圖說明書, 經濟部中央地質調查所. 何春蓀 (1997), 臺灣地質概論-臺灣地質圖說明書, 經濟部中央地質調查所, 共 164 頁. 陳勇全 (2004), 六龜地區礫岩沈積環境與潮州斷層之研究. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/5004 | - |
dc.description.abstract | 本研究使用井下-地表地震儀資料,以尾波交互相關法建立垂直及水平經驗格林函數,量測近地表(< 400m) 33組震波非均向性快軸方向及強度,並且同時獲得31筆Vp、33筆均向性Vs、31筆Vp/Vs比值。
過去研究臺灣地殼內的震波非均向性以觀測地震剪力波分離及表面波層析成像為主,由於此二法分別受限於路徑平均效應及缺乏高頻資料,無法解析近地表的震波非均向性。中央氣象局從2011年陸續建置了30個地表-井下地震觀測站,配合臺灣寬頻地震網既有的4個地表-井下測站,提供了難得的機會得以全面了解臺灣近地表震波特性。 結果顯示,臺灣近地表的震波非均向性強度變化大(~ 0-30%)且和區域地質高度相關,在空間分佈上呈現兩種不同的形態:(1)臺灣的山脈區域,震波非均向性快軸方向平行於山脈的走向,與地層內傾斜的橫向均向構造相關。 (2)西部平原和縱谷地區富含沖積物的區域,震波非均向性的快軸方向平行於最大主應力方向,由岩層中的節理或裂隙所主導,而震波非均向性強度與井體中地層的岩性相關。普遍來說,位於變質岩帶的量測強度最大,位於沉積岩區域的量測強度次之,而年輕未固結的沖積層、膠結鬆軟的沉積岩、還有火成岩區域的量測強度為最小。 臺灣近地表的震波速度及Vp/Vs比值量測與井體中地層的岩性高度相關。測站位於年輕且未固結的沖積層或階地堆積層之中,由於膠結疏鬆的岩層中孔隙率高,含水飽和程度高,所得震波速度慢且Vp/Vs比值高。而測站位於中央山脈區域的變質岩帶,整體而言震波速度快且Vp/Vs比值低。 | zh_TW |
dc.description.abstract | We measure the near-surface Vs, Vp and Vs azimuthal anisotropy of Taiwan by using the Empirical Green’s Functions (EGF) between the newly deployed borehole seismic array and their corresponding overhead surface stations.
Since the inter-station distances of the borehole-surface station pairs are less than 400m, relatively high frequency EGFs are required to accurately measure the azimuthal anisotropy. We compared EGFs derived from two approaches: (1) deconvolution of earthquake signals, and (2) cross-correlation of earthquake coda waves from local earthquakes (ML>4). While both approaches may provide robust high frequency EGFs (2-8 hz), the application of deconvolution method is limited by the nearby seismicity, thus, most of our results are derived by the coda cross-correlation method. We derived EGFs from 34 borehole-surface station pairs. We first correct for the borehole sensor orientation, we then measured the Vs azimuthal anisotropy, and evaluate the shallow Vp, Vs and Vp/Vs at each borehole site. In more than 30 derived EGFs, we have found clear cos2θ patterns of Vs azimuthal dependence. These results represent direct measurements for the near-surface seismic anisotropy, and they are strongly correlated with the surface geology. In general, the fast axis of Vs anisotropy is sub-parallel to the mountain strike in the mountain area, and sub-parallel to the trend of maximum compression stress, suggesting that the observed anisotropy is likely related to the orogeny-induced fabrics in mountain ranges and stress-aligned cracks in western plains, respectively. The strong near-surface anisotropy also implies that delay times contributed by the shallow crust might be underestimated in studies of the shear-wave splitting measurements. | en |
dc.description.provenance | Made available in DSpace on 2021-05-15T17:50:53Z (GMT). No. of bitstreams: 1 ntu-103-R01224209-1.pdf: 12865910 bytes, checksum: f5f41b3ca9400f24b1e0160fcf925c71 (MD5) Previous issue date: 2014 | en |
dc.description.tableofcontents | 誌謝 ii
中文摘要 iii Abstract iv 目錄 v 圖目錄 vii 表目錄 xii 第一章、 緒論 1 1.1、 震波非均向性 1 1.2、 成因探討 2 1.3、 研究動機 7 第二章、 研究區域概況 12 2.1、 臺灣地體架構及區域地質 12 2.2、 臺灣水平應力及應變場 16 第三章、 資料簡介 19 第四章、 理論背景及分析方法 23 4.1、 震波干涉法 23 4.2、 理論背景 26 4.3、 分析方法 28 4.3.1、 資料處理 28 4.3.2、 井下資料方位角修正 33 4.3.3、 地震尾波交互相關法 39 4.3.4、 地震解迴旋法 43 4.3.5、 震波非均向性量測 49 第五章、 結果 53 5.1、 P波、S波波速量測及Vp/Vs比值 53 5.2、 近地表震波非均向性 58 5.3、 剪力波分離時間預估 61 第六章、 討論 65 6.1、 臺灣近地表之區域震波特性討論 65 6.1.1、 北部區域 67 6.1.2、 西部區域 70 6.1.3、 南部區域 74 6.1.4、 東部區域 77 6.1.5、 離島區域 80 6.2、 臺灣近地表震波特性探討 82 6.2.1、 近地表震波速度及Vp/Vs比值 82 6.2.2、 近地表震波非均向性 83 第七章、 結論 86 參考文獻 88 附錄A、各測站方位角修正值 92 附錄B、各測站震波非均向性量測結果 94 附錄C、二十五萬分之一臺灣地質圖地層圖例 111 | |
dc.language.iso | zh-TW | |
dc.title | 臺灣地區近地表之震波非均向性研究 | zh_TW |
dc.title | On the Near-surface Seismic Anisotropy of Taiwan | en |
dc.type | Thesis | |
dc.date.schoolyear | 102-2 | |
dc.description.degree | 碩士 | |
dc.contributor.coadvisor | 梁文宗(Wen-Tzong Liang) | |
dc.contributor.oralexamcommittee | 李建成(Jian-Cheng Lee),洪淑蕙(Shu-Huei Hung),葉恩肇(En-Chao Yeh) | |
dc.subject.keyword | 地震尾波,震波干涉法,震波非均向性, | zh_TW |
dc.subject.keyword | earthquake code waves,seismic anisotropy,seismic interferometry, | en |
dc.relation.page | 112 | |
dc.rights.note | 同意授權(全球公開) | |
dc.date.accepted | 2014-08-19 | |
dc.contributor.author-college | 理學院 | zh_TW |
dc.contributor.author-dept | 地質科學研究所 | zh_TW |
顯示於系所單位: | 地質科學系 |
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