| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2008-12-22 |
| タイトル |
|
|
タイトル |
九重硫黄山での地磁気変化による噴気火道の形状推定 |
| その他のタイトル |
|
|
その他のタイトル |
Cooling Shape of Vents beneath Fumaroles at Kuju-Iwoyama Inferred from Geomagnetic Changes by Repeated Surveys |
| 言語 |
|
|
言語 |
jpn |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
九重硫黄山 |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
地磁気 |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
噴気 |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
火道 |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
departmental bulletin paper |
| 作成者 |
坂中, 伸也
田中, 良和
宇津木, 充
橋本, 武志
SAKANAKA, Shin'ya
TANAKA, Yoshikazu
UTSUGI, Mitsuru
HASHIMOTO, Takeshi
|
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
Geothermal changes in the subsurface volcanic and geothermal areas can be inferred from monitoring the geomagnetic changes. We installed several proton precession magnetometers for continuous observation and set up tens of observation sites for repeated survey in the geothermal area at Kuju-Iwoyama, Kyushu Island, Southwest of Japan, after the vapor eruption (phreatic explosion) event in October of 1995. So far, we carried out repeated surveys three times - in March to April of 1999, August to September of 1999, and December of 1999 to January of 2000 for more than 30 sites. Geomagnetic changes in the total force close to 40nT/year were observed at some observation sites during less than one year. The amounts of changes obtained by the repeated surveys were consistent with those obtained by the continuous observations.
In this study we indicate that installing a number of sites for repeated survey made it possible to reveal the shape of cooling or heating bodies to some extent. An inclined and cone-shaped cooling body beneath major fumaroles is inferred at Kuju-Iwoyama. |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 書誌情報 |
秋田大学工学資源学部研究報告
en : Scientific and technical reports of Faculty of Engineering and Resource Science,Akita University
巻 22,
p. 25-38,
発行日 2001-10-31
|
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
13457241 |
| NCID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA11410906 |
| 出版者 |
|
|
出版者 |
秋田大学工学資源学部 |
koushi22a.pdf (1.2 MB)
