TEM microstructural analysis in a fault gouge sample of the Nojima Fault Zone, Japan

被引:17
|
作者
Janssen, Christoph [1 ]
Wirth, Richard [1 ]
Lin, Aiming [2 ]
Dresen, Georg [1 ]
机构
[1] GeoForschungsZentrum Potsdam GFZ, D-14473 Potsdam, Germany
[2] Kyoto Univ, Dept Geophys, Kyoto 6068502, Japan
关键词
TEM analysis; Fault gouge; Amorphous material; Smectite; FISSION-TRACK ANALYSIS; ION-BEAM FIB; CATACLASTIC ROCKS; AWAJI ISLAND; DRILL CORE; SMECTITE; GLASS;
D O I
10.1016/j.tecto.2012.10.020
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
A fault gouge sample, recovered from 389 m depth of the Disaster Prevention Research Institute (DPRI) 500 m bore hole of the Nojima fault, which triggered the 1995 M7.3 Kobe earthquake, was examined with transmission electron microscopy (TEM). We observed different types of amorphous material containing tiny flakes of crystalline phases. TEM-EDX analysis of the matrix indicates a pure smectite composition suggesting that matrix and crystalline flakes have the same composition. The detection of tiny crystalline flakes in the amorphous material may confirm previous assumption from the alteration of pseudotachylyte into smectite in fault rocks. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:101 / 104
页数:4
相关论文
共 50 条
  • [21] Deep structure of the Nojima Fault, southwest Japan, estimated from borehole observations of fault-zone trapped waves
    Mizuno, T
    Nishigami, K
    [J]. TECTONOPHYSICS, 2006, 417 (3-4) : 231 - 247
  • [22] Effects of sample preparation on the microstructural signatures of faulting in clay-bearing fault gouge
    Aiyama, K.
    Mizoguchi, K.
    Hirano, K.
    Takizawa, S.
    [J]. JOURNAL OF STRUCTURAL GEOLOGY, 2019, 126 : 100 - 108
  • [23] Thematic issue: Nojima Fault Zone Probe - Preface
    Oshiman, N
    Shimamoto, T
    Takemura, K
    [J]. ISLAND ARC, 2001, 10 (3-4) : 195 - 196
  • [24] Fluid inclusions in pseudotachylytes from the Nojima fault, Japan
    Boullier, AM
    Ohtani, T
    Fujimoto, K
    Ito, H
    Dubois, M
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2001, 106 (B10) : 21965 - 21977
  • [25] Microstructural and mineral analysis on the fault gouge in the coseismic shear zone of the 2008 M w 7.9 Wenchuan earthquake
    Yuan, Ren-mao
    Zhang, Bing-liang
    Xu, Xi-wei
    Lin, Chuan-yong
    Han, Zhu-jun
    [J]. INTERNATIONAL JOURNAL OF EARTH SCIENCES, 2015, 104 (05) : 1425 - 1437
  • [26] Strain and tilt changes measured during a water injection experiment at the Nojima Fault zone, Japan
    Fujimori, K
    Ishii, H
    Mukai, A
    Nakao, S
    Matsumoto, S
    Hirata, Y
    [J]. ISLAND ARC, 2001, 10 (3-4) : 228 - 234
  • [27] A delineation of the Nojima fault ruptured in the M7.2 Kobe, Japan, earthquake of 1995 using fault zone trapped waves
    Li, YG
    Aki, K
    Vidale, JE
    Alvarez, MG
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1998, 103 (B4) : 7247 - 7263
  • [28] Attempt to determine U-Th ages of calcite veins in the Nojima fault zone, Japan
    Watanabe, Yumiko
    Nakai, Shun'ichi
    Lin, Aiming
    [J]. GEOCHEMICAL JOURNAL, 2008, 42 (06) : 507 - 513
  • [29] Impact of redox gradient on fault gouge formation related to fracture activities along the Ushikubi fault zone in Central Japan
    Zheng, G. D.
    Fu, B. H.
    Takahashi, Y.
    Zhao, J.
    [J]. GEOCHIMICA ET COSMOCHIMICA ACTA, 2009, 73 (13) : A1521 - A1521
  • [30] The Memory of a Fault Gouge: An Example from the Simplon Fault Zone (Central Alps)
    Argante, Valentina
    Tanner, David Colin
    Brandes, Christian
    von Hagke, Christoph
    Tsukamoto, Sumiko
    [J]. GEOSCIENCES, 2022, 12 (07)