Studies for the fault topography and subsurface structure of the first-class active faults along the margin of the large-scale alluvial plain

大型冲积平原边缘一级活动断裂断层地形及地下结构研究

• 批准号: 12480019
• 负责人: OKADA Atsumasa
• 金额: $ 10.05万
• 依托单位: KYOTO 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 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12480019/
• 关键词: large scale alluvial plain; subsurface structure; active fault; seismic reflection survey; gravity measurement; drilling (bore-hole) core; precise measurement of carbon 14

The result of this scientific research is summarized as as belowStudies on the first-class active faults along the margin of the several large-scale alluvial plains were carried out for clarifying their fault topography and subsurface structure. There are Yoro-Kuwana fault system along the western margin of Nohbi plain, Katagihara fault along the margin of Kyoto basin, Komatubara fault along the southwestern margin of Nagano basin, Ikoma fault in the northeastern margin of Osaka plain, active fault belt along the western shore of Lake Biwa, Median Tectonic Line Fault system (Tokushima plain), submarine faults along the southern margin of the Japan Sea, northern Los Angels fault system in Los Angels basin and so onWe have carried out geomorphological survey, geophysical prospecting, drilling, trench excavation, and collected the information on deformation mode and subsurface structure along the major active faults, displacement rate and age for fault activity. Especially, sampling by using geoslicer and continuous analysis for these cores have clarified the most recent activity, reccurrence interval and slip rate, etc

对几个大型冲积平原边缘沿着的一级活动断裂进行了研究，阐明了它们的断裂地貌和地下构造。沿能比平原西缘沿着有与老-桑名断裂系，沿京都盆地边缘有片木原断裂沿着，沿长野盆地西南缘有小马图原断裂沿着，沿大坂平原东北缘有生驹断裂，沿琵琶湖西岸海岸有活动断裂带沿着，沿中部构造线断裂系（德岛平原）、日本海南缘沿着海底断层、洛杉矶盆地北方洛杉矶断层系等我们进行了地貌调查、地球物理勘探、钻探、沟槽开挖、并收集了主要活动断裂的变形方式、沿着地下构造、位移速率和断裂活动年龄等信息。特别是通过地质切片取样和连续分析，弄清了这些岩心的最近活动、重现期次和滑动速率等

项目成果

中西利典, 竹村恵二, 岡田篤正ほか: "ボーリング試料高密度連続分析に基づく徳島平野における中央構造線活断層系の活動"地学雑誌. 111. 66-80 (2002)

Toshinori Nakanishi、Keiji Takemura、Atsumasa Okada 等：“基于钻孔样品高密度连续分析的德岛平原中位构造线活动断层系统的活动性”地质杂志 111. 66-80 (2002)。

村松郁栄, 岡田篤正, 松田時彦: "濃尾地震と根尾谷断層帯-内陸最大地震と断層の諸性質-"古今書院. 354+32 (2002)

Ikuei Muramatsu、Atsumasa Okada、Tokihiko Matsuda：“浓尾地震和 Neodani 断层带 - 最大的内陆地震和断层的性质”Kokinshoin 354+32 (2002)。

Ishiyama, T., Mueller, K., Togo, M., Okada, A., Takemura, K: "Geomorphology and kinematics of the Nobi-Ise active fault zone central Japan :implications for the kinematic growth of tectonic landforms within an active thrust belt"Eos Trans AGU. 83(47) Meet

Ishiyama, T.、Mueller, K.、Togo, M.、Okada, A.、Takemura, K：“日本中部野比-伊势活动断裂带的地貌和运动学：对活跃构造地貌运动学增长的影响

森野道夫, 岡田篤正, 中田 高他: "徳島平野における中央構造線活断層系の活動履歴"地質学雑誌. 107. 681-700 (2001)

森野道雄，冈田厚正，中田隆等：“德岛平原中位构造线活动断裂系统的活动史”地质学报107. 681-700（2001）。

Murata, A., Takemura, K., Miyata, T., Lin A.: "Quaternary vertical offset and average slip rate of the Nojima Fault on Awaji Island, Japan"Island Arc. 10. 360-367 (2001)

Murata, A.、Takemura, K.、Miyata, T.、Lin A.：“日本淡路岛野岛断层第四纪垂直偏移量和平均滑移率”岛弧。