Formation mechanism of fault rocks in ductile-brittle regime

韧脆态断层岩的形成机制

• 批准号: 12440138
• 负责人: LIN Aiming
• 金额: $ 7.23万
• 依托单位: Shizuoka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12440138/
• 关键词: brittle; ductile; fault rock; seismic fault; frictional melting; pseudo tachylyte; active fault; 1999 Chi-chi earthquake; 断層岩; 断層破砕帯; S-Cカタクレーサイト; 脆性変形

The process of earthquake rupture propagation within a seismogenic zone is inherently complex at all scales, but a lack of adequate geologic data inhibits any detailed investigations into the actual process of rupture and slip. Fault-related pseudotachylytes found as simple veins or injected networks in fault zones are widely considered to record "fossil" earthquakes, i.e. events of seismic slip along faults within brittle to semi-ductile and ductile regimes. Pseudotachylyte is one of only a few materials that record the seismic nature of ancient faults from the brittle to ductile regimes. This study presents some examples of the coexistence of C-Pt and M-Pt generated in the same shear zone in the brittle-ductile regimes from shallow-deep crust.During this study period, there are 3 large earthquake occurred : Chi-Chi (Taiwan) earthquake, Totori-ken Seibu earthquake, and Central Kunlun (China) earthquake. We also carried out the field investigations to understand the relationship between the seismic fault, active fault, and seismogenic structures.37 papers related to this project have been published in international and domestic journals, which have been shown in the publication list.

地震区内地震破裂的过程在所有尺度上都固有地很复杂，但是缺乏足够的地质数据会抑制对破裂和滑动实际过程的任何详细研究。被广泛认为是故障区域中的简单静脉或注射网络的与断层相关的伪造物被广泛认为记录“化石”地震，即沿着脆性到半延展性和延展性和延性状态的断层的地震滑移事件。伪lythyte是仅有的少数材料之一，它们记录了从脆性到延性政权的古代断层的地震性质。这项研究提供了一些示例，说明在浅水 - 深壳的脆性脱尿状态下，在同一剪切区中产生的C-PT和M-PT的共存。在这段研究期间，发生了3次大地震：Chi-Chi（Taiwan）地震（台湾），Totori-ken seibu seibu seibu seibu seibu searlquake和Central Kunlun（Charen kunlun（Charre）（中国）地球。我们还进行了现场调查，以了解地震断层，主动断层和地震结构之间的关系。37与该项目相关的论文已发表在国际和国内期刊上，这些论文已在出版物列表中显示。

项目成果

Kobayashi Kenta, Tatsuro Fukuchi, Noriko Hasebe, and Aiming Lin, et al.: "Occurrence of the marginal fracture zone in the 1800 m drill core penetrating throughout the Nojima fault"Journal of Geological Society of Japan. 105. XIX-XX (1999)

小林健太、福地龙郎、长谷部纪子、林爱明等：“贯穿野岛断层的1800m钻芯中边缘断裂带的发生”，日本地质学会学报。

Toru Ouchi, Aiming Lin, Allen Chen and Tadashi Maruyama: "The 1999 Chi-Chi (Taiwan) earthquake : earthquake fault and strong motions"Bulletin of the Seismological Society of America. 91. 966-976 (2001)

Toru Ouchi、Aiming Lin、Allen Chen 和 Tadashi Maruyama：“1999 年 Chi-Chi（台湾）地震：地震断层和强烈运动”美国地震学会通报。

林 愛明, 狩野謙一, 丸山 正: "スロー型の液状化現象"月刊地球. 号外(印刷中). (2002)

Aiaki Hayashi、Kenichi Kano、Tadashi Maruyama：“缓慢液化现象”月刊特刊（2002 年出版）。

A.Lin et al: "Comparative study of the cataclastic fanlt rocks found in cores and outcrops along the Nojima in Awaji II Island, Japan"The Island Arc. 10,3/4(in press). (2001)

A.Lin 等人：“日本淡路二岛野岛岩心和露头中发现的碎裂扇岩的比较研究”岛弧。

林愛明,狩野謙一: "基盤岩の地質構造と変位地形から推定される活断層の活動史-大宮山脈を横切った飯田-松川断層と境峠断層を例に"月刊地球. 号外No.31. 34-45 (2000)

林爱明、嘉纳宪一：“从基岩地质结构和位移地形推测活动断层活动的历史——以横穿大宫山脉的饭田松川断层和坂头断层为例”月刊特刊第31号34-。 45 (2000)