Electronic Resource

On time-series analysis of Network-MT data measured in the Kii Peninsula, southwestern Japan

التفاصيل البيبلوغرافية
العنوان: On time-series analysis of Network-MT data measured in the Kii Peninsula, southwestern Japan
المؤلفون: Watanabe, Akira, Uyeshima, Makoto, Yamaguchi, Satoru, Usui, Yoshiya, Murakami, Hideki, OGAWA, Tsutomu, Oshiman, Naoto, Yoshimura, Ryokei, Aizawa, Koki, Shiozaki, Ichiro, Kasaya, Takafumi
نوع الوثيقة: Electronic Resource
مستخلص: The Kii Peninsula is a geoscientifically interesting region because of the existence of high temperature hot springs, the Kumano caldera, and the Deep Low-frequency Tremors (DLTs). Therefore, the subsurface structure of the Kii Peninsula has been investigated by various disciplines. Among them, electromagnetic method is useful for understanding the spatial distribution of temperature, water and melt beneath the surface. New Energy and Industrial Technology Development Organization (1994), Fuji-ta et al. (1997), Umeda et al. (2003) and Kinoshita et al. (2018) studied the subsurface resistivity structure of the Kii Peninsula with the aid of conventional MT method. Besides these EM studies, Yamaguchi et al. (2009) performed the Network-MT survey in the region almost covering whole Kii Peninsula to elucidate the regional and deep structure. The Network-MT method is superior to the conventional MT method in that it enables us to obtain voltage differences with high S/N ratio especially for the longer period and is relatively free from static effects owing to the long baseline. However, they analysed 2-D resistivity structure by using only a part of the Network- MT data only on one survey line. Three-dimensional analysis is inevitably necessary to investigate the regional and deep structure because coastline distribution as well as bathymetry distribution around the Kii Peninsula not 2-D at all and, in addition, strikes of the igneous intrusion represented by the Kumano acidic rocks are not always consistent with the subduction direction of the Philippine Sea Plate. Therefore, we aim to analyse all the available Network-MT data in the Kii Peninsula. This presentation described the progress report and the results from the time-series analysis. In addition, we discussed about future work of this study.
مصطلحات الفهرس: research report
URL: http://hdl.handle.net/2433/285657
http://www.eqh.dpri.kyoto-u.ac.jp/CA/CA2022WS.html
http://www.eqh.dpri.kyoto-u.ac.jp/CA/CA2022WS.html
الاتاحة: Open access content. Open access content
ملاحظة: Japanese
Other Numbers: YJ@ oai:repository.kulib.kyoto-u.ac.jp:2433/285657
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1458649473
المصدر المساهم: KYOTO UNIV
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رقم الانضمام: edsoai.on1458649473
قاعدة البيانات: OAIster