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富士山の地質と新富士溶岩の古地磁気
https://doi.org/10.14945/00000347
https://doi.org/10.14945/000003479915cea1-9eb6-4a3b-90e3-42b4fa716be6
名前 / ファイル | ライセンス | アクション |
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KJ00000102417.pdf (2.5 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||
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公開日 | 2008-01-25 | |||||||
タイトル | ||||||||
タイトル | 富士山の地質と新富士溶岩の古地磁気 | |||||||
その他のタイトル | ||||||||
その他のタイトル | Geology of Mt. Fuji and paleomagnetism of lavas of Shin-Fuji Volcano | |||||||
著者 |
新妻, 信明
× 新妻, 信明
WEKO
181
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主題 | ||||||||
主題Scheme | Other | |||||||
主題 | Mt. Fuji | |||||||
主題 | ||||||||
主題Scheme | Other | |||||||
主題 | Shin-Fuji | |||||||
主題 | ||||||||
主題Scheme | Other | |||||||
主題 | Ko-Fuji | |||||||
主題 | ||||||||
主題Scheme | Other | |||||||
主題 | paleomagnetism | |||||||
主題 | ||||||||
主題Scheme | Other | |||||||
主題 | rock magnetism | |||||||
NDC: | ||||||||
主題Scheme | NDC | |||||||
主題 | 458 | |||||||
抄録: | ||||||||
内容記述タイプ | Abstract | |||||||
内容記述 | Geologic classification and distributions of the effusives of Fuji Volcano were com-piled mainly based on Tsuya (1968,1971) and the framework of geologic age by Miyaji (1988). The effusives can be classified into those of the Ko-Fuji and Shin-Fuji Volcanos, and that of the Shin-Fuji Volcano can be divided into 3,old, middle and young. The age of the boundary between the old and middle of Shin-Fuji Volcano is ca. 6300 years, and between middle and young is ca. 2200 years. The enormous amount of effusives of Fuji Volcano is related to the collision tectonics in central Japan, induced by motion of the Philip-pine Sea Plate. Paleomagnetic samples were collected from 11 sites of the old lavas and 3 sites of the middle aged lavas of the Shin-Fuji Volcano. Three oriented blocks were sampled from each site. The intensities of natural remanent magnetization (NRM) of most of the samples ranged from 5 to 25 A/m, and median destructive field (MDF) was 15-40mT. The direction of stepwise demagnetized NRM is stable and can be used for paleomagnetic studies. The positions of the virtual geomagnetic pole (VGP) are distributed around North Pole within latitudes higher than 60°N. VGP distributions are significantly different for the sites on the "same" lava. NRM intensities, MDF, anisotropy of magnetic susceptibility, and anhysteretic remanent magnetization (ARM), are useful to characterize the rock magnetism of lavas. The 3 blocks from 2 sites of the middle aged lavas of the Shin-Fuji Volcano have extremely strong intensities ranging from 40 to 80 A/m and different rock magnetic character from the other samples with 5-25 A/m of a NRM intensity. The sampling sites are located near the lower margin of the lava flows. The strong NRM can be estimated by the precipitation of reduced iron in the lava flow, contaminated by growing vegetation. | |||||||
出版者 | ||||||||
出版者 | 静岡大学地球科学教室 | |||||||
言語 | ||||||||
言語 | jpn | |||||||
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 | |||||||
NII資源タイプ | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | Departmental Bulletin Paper | |||||||
出版タイプ | ||||||||
出版タイプ | VoR | |||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
ID登録 | ||||||||
ID登録 | 10.14945/00000347 | |||||||
ID登録タイプ | JaLC | |||||||
NII論文ID: | ||||||||
関連タイプ | isIdenticalTo | |||||||
識別子タイプ | NAID | |||||||
関連識別子 | 110000413377 | |||||||
収録物識別子 | ||||||||
収録物識別子タイプ | NCID | |||||||
収録物識別子 | AN00103190 | |||||||
ISSN: | ||||||||
収録物識別子タイプ | ISSN | |||||||
収録物識別子 | 03886298 | |||||||
書誌情報 |
静岡大学地球科学研究報告 巻 24, p. 27-41, 発行日 1997-07 |
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フォーマット: | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | application/pdf |