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公開日 : 2017-05-19
1.05 MB
著者
小金井 茜
野口 竜也
小室 裕明
内容記述(抄録等)
Bouguer gravity anomaly observations revealed the basement relief under the western flank of Daisen Volcano. A total of 250 observation points including 150 new points in the studied area with 9x10 km in size describe a N-S basement ridge in this area after the band-pass filtering of 1-20 km in wavelength. In addition, three point array observations of microtremor showed that the Daisen volcaniclastic sediments covering the basement rocks consist of 2 or 3 layers in this area. Single point microtremor observations also revealed predominant periods, which nearly represent the Daisen volcaniclastic sediments. The thickness changes of these sediments are in good agreement with the basement relief estimated from the gravity anomaly.
主題
Bouguer gravity anomaly observation
microtremor mesurement
Daisen Volcano
basement relief
掲載誌情報
島根大学地球資源環境学研究報告 35 , 25 - 30 , 2016-12
出版者
島根大学大学院総合理工学研究科地球資源環境学教室
権利関係
島根大学総合理工学部地球資源環境学教室
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