DETAILED STUDIES ON THE STRUCTURE OF MID ATLANTIC RIDGE

大西洋中脊结构的详细研究

• 批准号: 09044046
• 负责人: SHIMAMURA Hideki
• 金额: $ 10.37万
• 依托单位: HOKKAIDO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A).
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09044046/
• 关键词: Ocean Bottom Seismographs; Seismicity; Mid Atlantic Ridge; Subbottom Structure under the Atlantic; Icelandic Hot Spot; Plate Tectonics; 海底地震観測; スピッツベルゲン; 地下構造研究; エアガン; 海陸境界; クニボビッチ嶺; 地震活動; ティヨルネス断裂帯; 地震のメカニズム; アイスランド火山帯; コルベインセイ海嶺

By the use of Ocean Bottom Seismographs (OBS), which was developed by the head investigator and his colleagues in Japan, we investigated the subbottom structure of the region from Mid Atlantic Ridge through Norwegian Atlantic coast with detail by means of controlled source seismology. Also, microearthquake survey by the use of OBS has revealed the detailed seismicity which is a direct results from the activity and movement of oceanic lithosphere which was born at the Mid Atlantic Ridge.

通过使用由首席研究员和他的日本同事开发的海底地震仪（OBS），我们通过受控源地震学手段详细调查了从大西洋中脊到挪威大西洋海岸地区的海底结构。此外，利用OBS进行的微地震调查揭示了详细的地震活动性，这是大西洋中脊产生的海洋岩石圈活动和运动的直接结果。

项目成果

Murai,Y.: "OBS-airgun study of deep structure between Svalbard and Knipovich Ridge" Physics of the Earth and Planetary Interiors. (発表予定).

Murai, Y.：“OBS-气枪研究斯瓦尔巴群岛和克尼波维奇海岭之间的深层结构”地球和行星内部物理学（待提交）。

Murai,Y.: "Deep structure of beneath and around Spitzbergen" Tectonophysics. (発表予定).

Murai, Y.：“斯皮茨卑尔根岛下方和周围的深层结构”构造物理学（待提交）。

Gunnar, G., Watanabe, T., Ragnar, S., and Shimamura, H.: "Earthquake hypocentre relocations by use of Ocean Bottom Seismographs" Tectonophysics. (印刷中).

Gunnar, G.、Watanabe, T.、Ragnar, S. 和 Shimamura, H.：“利用海底地震仪进行地震震源重定位”构造物理学（正在出版）。

Mjelde,R.: "Deep structure of passive margin off Northern Norway by use of three component OBS and airguns." Physics of the Earth and Planetary Interiors. (発表予定).

Mjelde, R.：“使用三部分 OBS 和气枪研究挪威北部被动边缘的深层结构。”地球和行星内部物理学（即将介绍）。

Kodaira,S.,Mjelde,R.,Gunnarsson,K.,Shiobara,H., and Shimamura,H.: "Evolution of oceanic crust on the Kolbeinsey Ridge, north of Iceland, over the past 22 Myr."Terra Nova. 10. 27-31 (1998)

Kodaira,S.、Mjelde,R.、Gunnarsson,K.、Shiobara,H. 和 Shimamura,H.：“过去 22 Myr 期间冰岛北部 Kolbeinsey 海脊的洋壳演化”Terra Nova。