Fluid-rock interaction deduced from geological time bright-layer in the middle crust

2009 Fiscal Year Final Research Report

• Project/Area Number: 19340152
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Geology
• Research Institution: Kagawa University
• Principal Investigator: TERABAYASHI Masaru Kagawa University, 工学部, 准教授 (40243745)
• Co-Investigator(Kenkyū-buntansha): YAMAMOTO Hiroshi 鹿児島大学, 大学院・理工学研究科, 准教授 (60244224) ; OKAMOTO Kazuaki 埼玉大学, 教育学部, 准教授 (60456001) ; HAFIZ Ur rehman 鹿児島大学, 大学院・理工学研究科, 助教 (60505410) ; YOSHIDA Hidenori 香川大学, 工学部, 教授 (80265470)
• Project Period (FY): 2007 – 2009
• Keywords: 流体 / 地殻 / 内陸地震 / 変成岩 / ブライトレイヤー

Research Abstract

The geological time bright-layer was recognized in the low-P/T metamorphic rocks. We found that silicified rocks distribute as layers or lenticular bodies, and they are restricted in the greenscist facies conditions within structurally vertical thickness. Quartz veins crossing high-angles with schistosity were preferentially developed. The mode of occurrences of quartz veins indicates that silicified rocks are competent relative to underlying rocks. Rock boundary with high competence contrast is probably a good reflector of seismic waves. Seismic bright-layer reflections in the middle crust would be arisen from observed silicified rock layers in this study, if those are distributed in the deep crust to a considerable extent.

Research Products

• [Journal Article] Subhorizontal tectonic framework of the Horoman peridotite complex and enveloping crustal rocks (2010)
  • Author(s): Yamamoto, H., Nakamori, N., Terabayashi, M., Rehman, H.U., Ishikawa, M., Kaneko, Y., Matsui, T.
  • Journal Title: south-central Hokkaido, Japan. Island Arc 19(3)(印刷中)
• [Journal Article] Reply to "Comment on 'Metamorphic P-T-time history of the Sanbagawa belt in central Shikoku, Japan and implications for retrograde metamorphism during exhumation' by S.R. Wallis and S. Endo" (2010)
  • Author(s): Aoki, K., Kitajima, K., Masago, H., Nishizawa, M., Terabayashi, M., Omori, S., Yokoyama, T., Takahata, N., Sano, Y., Maruyama, S.
  • Journal Title: Lithos 116(1-2) Pages: 197-199
• [Journal Article] Fluid-rock interaction in the bottom of the inland seismogenic zone. (2010)
  • Author(s): Terabayashi, M., Okamoto, K., Yamamoto, H., Chan, Y.-C.
  • Journal Title: Island Arc 19(1) Pages: 1-3
• [Journal Article] Silicification of pelitic schist in the Ryoke low-pressure/temperature metamorphic belt, Southwest Japan: Origin of competent layers in the middle crust. (2010)
  • Author(s): Terabayashi, M., Yamamoto, H., Hiwatashi, E., Kitajima, K.
  • Journal Title: Island Arc 19(1) Pages: 17-29
• [Journal Article] Simultaneous measurements of compressional wave and shear wave velocities, Poisson's ratio, Vp/Vs under deep crustal pressure and temperature conditions: Examples of silicified polycrystalline quartz sample from Ryoke belt (2010)
  • Author(s): Matsumoto, Y., Ishikawa, M., Terabayashi, M., Arima, M.
  • Journal Title: Island Arc 19(1) Pages: 30-39
• [Journal Article] 四国中央部三波川変成帯のテクトニクス (2009)
  • Author(s): 岡本和明・青木一勝・丸山茂徳
  • Journal Title: 地質学雑誌 第115巻 Pages: 37-49
• [Journal Article] Early Paleozoic medium-pressure metamorphism in central Vietnam: evidence from SHRIMP U-Pb zircon ages (2009)
  • Author(s): Usuki, T., Lan, C.Y., Yui, T.F., Iizuka, Y., Vu, V.T., Tran, T.A., Okamoto, K., Wooden, J.L., Liou, J.G.
  • Journal Title: Geosciences Journal 13 Pages: 245-256
• [Journal Article] Detrital zircon evidence for the antiquity of Taiwan (2009)
  • Author(s): Lan, C.Y., Usuki, T., Wang, K.L., Yui, T.F., Okamoto, K., Lee, Y.H., Hirata, T., Kon, Y., Orihashi, Y., Liou J.G., Lee C.S.
  • Journal Title: Geosciences Journal 13 Pages: 233-243
• [Journal Article] 不連続性岩盤のクリープ挙動に関する数値解析的研究 (2009)
  • Author(s): 巽隆有・吉田秀典・藤原真澄・森本亮司
  • Journal Title: 応用力学論文集 12 Pages: 255-264
• [Journal Article] 不連続性岩盤中の地下空洞における周辺岩盤のクリープ解析 (2009)
  • Author(s): 巽隆有・吉田秀典・藤原真澄
  • Journal Title: 計算数理工学論文集 9 Pages: 13-18
• [Journal Article] Numerical Study on Shear Behavior of Discontinuity of Rock Mass (2009)
  • Author(s): Tatsumi, T., Yoshida, H.
  • Journal Title: Theoretical and Applied Mechanics Japan 57 Pages: 67-72
• [Journal Article] Metamorphic P-T-time history of the Sanbagawa belt in central Shikoku (2009)
  • Author(s): Aoki, K., Kitajima, K., Masago, H., Nishizawa, M., Terabayashi, M., Omori, S., Yokoyama, T., Takahata, N., Sano, Y., Maruyama, S.
  • Journal Title: Japan and implications for retrograde metamorphism during exhumation. Lithos 113(3-4) Pages: 393-407
• [Journal Article] The youngest blueschist belt in SW Japan: Implication for the exhumation of the Cretaceous Sanbagawa high-P/T metamorphic belt. (2008)
  • Author(s): Aoki, K., Itaya, T., Shibuya, T., Masago, H., Kon, Y., Terabayashi, M., Kaneko, Y., Kawai, T., Maruyama, S.
  • Journal Title: Journal of Metamorphic Geology 26(5) Pages: 583-602
• [Journal Article] Neoproterozoic glaciation in the mid-oceanic realm: An example from hemi-pelagic mudstones on Llanddwyn Island (2008)
  • Author(s): Kawai, T., Windley, B.F., Terabayashi, M., Yamamoto, H., Isozaki, Y., Maruyama, S.
  • Journal Title: Anglesey, UK. Gondwana Research 14(1-2) Pages: 105-114
• [Journal Article] 岩盤の透水-応力連成挙動の把握を目的とした試験装置の開発と連成挙動の解明に関する研究 (2008)
  • Author(s): 吉田秀典・山崎卓哉・井上純哉
  • Journal Title: 土木学会論文集C 64(4) Pages: 843-855
• [Journal Article] 不連続面を有する材料の変形挙動に関する実験的および数値解析的研究 (2008)
  • Author(s): 巽隆有・吉田秀典
  • Journal Title: 応用力学論文集 11 Pages: 339-350
• [Journal Article] Imbricate structure of Luobusa ophiolite and surrounding rocks, southern Tibet (2007)
  • Author(s): Yamamoto, H., Yamamoto, S., Kaneko, Y., Terabayashi, M., Komiya, T., Katayama, I., Iizuka, T.
  • Journal Title: Journal of Asian Earth Sciences 29(2-3) Pages: 296-304
• [Journal Article] Geotectonic framework of the blueschist unit on Anglesey-Llyn, UK, and its role in the development of a Neoproterozoic accretionary orogen (2007)
  • Author(s): Kawai, T, Windley, B.F., Terabayashi, M., Yamamoto, H., Maruyama, S., Omori, S., Shibuya, T., Sawaki, Y., Isozaki Y.
  • Journal Title: Precambrian Research 153(1-2) Pages: 11-28
• [Journal Article] Metamorphic zones in the Anglesey blueschist belt and implications for the development of a Neoproterozoic subduction-accretion complex: reply (2007)
  • Author(s): Kawai, T., Windley, B.F., Terabayashi, M., Yamamoto, H., Maruyama, S., Isozaki Y.
  • Journal Title: Journal of Metamorphic Geology 25(5) Pages: 509-510
• [Journal Article] 亀裂性岩盤における透水-変形連成挙動に関する研究 (2007)
  • Author(s): 吉田秀典・乘金悠里・森本亮司・井上純哉
  • Journal Title: 応用力学論文集 10 Pages: 311-322
• [Journal Article] 不連続面の変形を考慮に入れた不連続性材料のクリープモデル (2007)
  • Author(s): 吉田秀典・井上純哉・森本亮司
  • Journal Title: 計算数理工学論文集 7(1) Pages: 19-24
• [Journal Article] Tectonic boundary between the Sanbagawa belt and the Shimanto belt in central Shikoku, Japan (2007)
  • Author(s): Aoki, K., Iizuka, T., Hirata, T., Maruyama, S., Terabayashi, M.
  • Journal Title: The Journal of the Geological Society of Japan 113(5) Pages: 171-183
• [Journal Article] Middle Archaean ocean ridge hydrothermal metamorphism and alteration recorded in the Cleaverville area, Pilbara Craton, Western Australia (2007)
  • Author(s): Shibuya, T., Kitajima, K., Komiya, T., Terabayashi, M., Maruyama, S.
  • Journal Title: Journal of Metamorphic Geology 25(5) Pages: 751-767
• [Journal Article] Late Triassic-Late Cretaceous accretion/subduction in the Taiwan region along the eastern margin of South China evidence from zircon SHRIMP dating.
  • Author(s): Yui, T.F., Okamoto, K., Usuki, T., Lan, C.Y., Chu, H.T., Liou, J.G.
  • Journal Title: International Geology Review 51 Pages: 304-328