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Tectonic development in the regions around Japan since latest miocene

机译：自最新内科以来日本地区的构造发展

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We propose the guideline to identify fault in offshore region mainly based on MCS profiles, combinding high resolution bathymetric maps and geological data such as bore hole results. Based on the guideline we distinguished total 776 faults developing around Japan since the latest Miocene and 753 faults out of total numbers of faults are interpreted to have been active by Quaternary. Together with distinguishmeent of fault we examined the attrubutes of each faults such as surface and vertical distribution, criteria of offset, age of movement, certainty of a fault and so on. The results of the distinguishment and examination of the fault leads to the conclusion that the ongoing tectoinc framework around Japan characterized by 1) oblique Subduction along the Nankai Trough, 2) rifting at the Okinawa Trough, 3) E-W compressionl regeme along the Japan Sea margin, 4) E-W compressionl regeme along southwestern margin of the Okhotsk Sea and off southern Hokkaido, 5) E-W compressional regeme along the Japan Trench, 6) rifting in the central arc of the Izu-Ogasawara Arc has been established since 3 Ma at the earliest 6 Ma. We utilized high resolution data set which we enable to access. Tow big problems, however, still remain in terms of reliability of fault recognition. Those are 1) age of fault movement and 2) spatial distribution of fault. To solve the first one, new technique is required in order to obtain core samples which provide critical evidence to determine age of fault movement. As is second problem concerned, new intensive seismic survery is indispensable to make a precise fault distribution map, especially in the boundary area between land and sea.
机译：我们提出了近海地区识别故障的指导，主要基于MCS配置文件，组成高分辨率沐浴映射和地质数据，如钻孔孔。根据指南，我们尊重日本周围发展的总共776个故障，因为最新的内突和753个故障出错的故障被解释为第四纪已经活跃。与故障的区分一起，我们检查了各个故障的attrubutes，如表面和垂直分布，偏移标准，运动年龄，故障的确定性等。对故障的区别和检查的结果导致了日本沿着日本的持续构造框架的结论，2）沿着冲绳槽的徘徊，3）沿着日本​​海浪的ew压缩法制率4）沿着Okhotsk Sea和北海道南部的西南边缘的EW压缩Regeme，5）沿着日本​​沟渠的挤压裁员，6）在最早3 MA自3马来建立了IZU-OGASAWARA弧的中央弧线。 6马。我们利用了我们启用的高分辨率数据集。然而，在故障识别的可靠性方面，仍然存在大问题。那些是1）的故障运动年龄和2）空间分布的故障。为了解决第一个，需要新的技术来获得核心样本，这提供了确定故障运动年龄的关键证据。与第二个问题有关时，新型密集的地震性别术是必不可少的，使得精确的故障分布图，特别是在陆地和海洋之间的边界区域。

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