High magnetic susceptibility of fault gouge within Taiwan Chelungpu fault: Nondestructive continuous measurements of physical and chemical properties in fault rocks recovered from Hole B, TCDP
High magnetic susceptibility of fault gouge within Taiwan Chelungpu fault: Nondestructive continuous measurements of physical and chemical properties in fault rocks recovered from Hole B, TCDP
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DOI：
10.1029/2006gl026133
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发表时间：
2006-08
影响因子：
5.2
通讯作者：
T. Hirono;Weiren Lin;E. Yeh;W. Soh;Y. Hashimoto;H. Sone;O. Matsubayashi;K. Aoike;Hisao Itô;M. Kinoshita;M. Murayama;Sheng-rong Song;K. Ma;J. Hung;C. Wang;Y. Tsai
中科院分区：
文献类型：
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作者：
T. Hirono;Weiren Lin;E. Yeh;W. Soh;Y. Hashimoto;H. Sone;O. Matsubayashi;K. Aoike;Hisao Itô;M. Kinoshita;M. Murayama;Sheng-rong Song;K. Ma;J. Hung;C. Wang;Y. Tsai
台湾车笼埔断层钻探计划（TCDP）于2002年进行，以调查1999年台湾集集地震的断层机制。孔B穿透车笼埔断层，并从948.42米和1352.60米深度之间回收了岩心样品。在岩芯样本中，三个区域（标记为1136mFZ、1194mFZ和1243mFZ）被识别为车笼埔断层内的活动断层带。多传感器岩心记录仪的测量结果显示，在所有三个断层带的黑色泥带内，密度较低，磁化率较高。尽管1999年地震中滑动的断层带尚未确定，但较高的磁化率表明车笼埔断层发生了摩擦加热。
The Taiwan Chelungpu‐fault Drilling Project (TCDP) was undertaken in 2002 to investigate the faulting mechanism of the 1999 Taiwan Chi‐Chi earthquake. Hole B penetrated the Chelungpu fault, and recovered core samples from between 948.42 m and 1352.60 m depth. Three zones, marked 1136mFZ, 1194mFZ and 1243mFZ, were recognized in the core samples as active fault‐zones within the Chelungpu fault. Multi‐Sensor Core Logger measurements revealed lower densities and higher magnetic susceptibilities within the black gouge zones in all three fault zones. Even though the fault zone that slipped during the 1999 earthquake has not been identified, higher magnetic susceptibilities indicate that frictional heating has taken place in the Chelungpu fault.