TECTONIC HISTORY OF THE ROKKO-AWAJI ACTIVE FAULT ZONE (THE SEISMIC SOURCE FAULT OF THE 1995 SOUTHERN HYOGO PREFECTURE EARTHQUAKE)

六甲淡路活动断裂带（1995年兵库县南部地震震源断层）的构造历史

• 批准号: 09640544
• 负责人: LIN Aiming
• 金额: $ 2.37万
• 依托单位: KOBE UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09640544/
• 关键词: Paleoseismic event; Keicho-Fushimi earthquake; Gosukebashi fault; Rokko-Awaji active fault zone; Ashiya fault; Otsuki fault; S-C cataclasite; fault rock; 六甲-淡路活断層系; 五助断層; 活断層; 慶長-伏見地震; トレンチ発掘調査; 活動周期; 横ずれ

The following major research results have been obtained. (1) The results of trench surveys show that (i) there are at least four large seismic events produced by slip on the Gosukebashi fault in the Holocene in the southeastern Rokko Mountains of Japan, they are : the youngest event is associated with the 1596 y.A.D.Keicho-Fushimi large earthquake which occurred in the area around Kyoto-Kobe City ; the second younger event is probably correlated with the 416 y.A.D.Yamato earthquake which is the oldest historic earthquake in Japanese historic records ; (ii) the horizontal displacement produced by an individual event is about 1.5 m, and the recurrence of seismic events intervals about 1,200 years in the Gosukebashi fault. (2) The Otsuki fault and Ashiya fault zone are presently active, the former having a slip-rate of about lmm/y and the latter having a slip-rate of 0.5-0.85 mm/y in vertical in the late Quaternary. (3) Foliated cataclasites which display S-C fabrics similar to those of mylonites are found in granitic rocks along the Rokko-Awaji fault zone, Japan. It is revealed clearly that the S-C cataclasites in the Rokko-Awaji fault zone formed at temperatures between 150-250 0C corresponding to depths of 5-8 kin, at a continental geothermal gradient of 30 0C/km, before being uplifted and exposed. This study of cataclastically deformed rocks shows that the fault zone theology of the upper 5-10 km of crust is greatly influenced by deformational processes in S-C cataclasites.

已经获得了以下主要研究结果。 （1）沟渠调查的结果表明，（i）至少有四个大型地震事件是通过在日本东南部的Rokko山脉的Gosukebashi断层上滑落而产生的，它们是：最年轻的事件与1596年Y.A.D.Keicho-fiShimi大地震有关，周围发生了kyobooto的区域周围发生的区域;第二个年轻事件可能与416 Y.A.D.Yamato地震相关，这是日本历史记录中最古老的历史地震。 （ii）单个事件产生的水平位移约为1.5 m，地震事件间隔的复发在Gosukebashi断层中约为1200年。 （2）Otsuki断层和Ashiya断层区域目前处于活动状态，前者的滑动率约为Lmm/y，后者的滑动率为0.5-0.85 mm/y，在晚期晚期的垂直方向为0.5-0.85 mm/y。 （3）在日本Rokko-Awaji断层区的花岗岩岩石中发现了表现出类似于甲虫的S-C织物的叶状地破坏者。清楚地表明，在150-250 0C之间形成的rokko-awaji断层区中的S-C级破坏者在30 0c/km的大陆地热梯度上，在30 0c/km的大陆地热梯度上，然后被提升和暴露。这项对灾难性变形岩石的研究表明，上层5-10 km的上限的断层区神学受到S-C级瓦解岩中变形过程的极大影响。

项目成果

林 愛明: "六甲活動系の活動史-芦屋断層の分岐断層(鷲林寺断層◆)の第四紀後期の活動性" 平成10年度神戸大学都市安全センター研究報告. (印刷中). (1999)

林爱明：“六甲活动系的活动史-芦屋断层分支断层（Washirinji断层◆）的晚第四纪活动”1998年神户大学城市安全中心研究报告（1999年出版）。

Aiming Lin: "S-C fabrics of foliated cataclasites from the Rokko-Awaji fault zone, Japan. Extended abstract in "The GJS WORKSHOP on fault rocks and seismogenic process-Deformation of fault materials : Field observations, laboratory studies, and modeling""

林爱明：“来自日本六甲淡路断裂带的叶状碎裂岩的 S-C 结构。“关于断层岩石和地震过程的 GJS 研讨会 - 断层材料的变形：现场观察、实验室研究和建模”中的扩展摘要”

Aiming Lin, Takuya Wata and Tadashi Maruyama: "Late Quaternary activity of the Ashiaya fault." The Journal of Geological Society of Japan. 105 (in press). (1999)

Aiming Lin、Takuy​​a Wata 和 Tadashi Maruyama：“芦屋断层的晚第四纪活动”。

Aiming Lin, Tadashi Maruyama and Takao Miyata: "Late Holocene activity of the Gosukebashi fault revealed by excavation study at the Nishigatani valley in the eastern Rokko Mountains, Japan." Active Fault Research. 18 (in press). (1999)

Aiming Lin、Tadashi Maruyama 和 Takao Miyata：“日本六甲山脉东部西河谷山谷的挖掘研究揭示了五助桥断层的晚全新世活动。”

林 愛明: "中国河北省張北-尚義地震のテクトニクス背景と被害" 科学. 68. 73-74 (1998)

林爱明：“河北张北-尚义地震的构造背景与破坏”，科学，68。73-74（1998）。