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タイトルA paleomagnetic study on the Cenozoic rocks from The westcentral Kyushu Island, west Japan
作成者Domen, Haruo
Muneoka, Hiroshi
作成者ヨミドウメン, ハルオ
ムネオカ, ヒロシ
作成者別表記堂面, 春雄
宗岡, 浩
作成者所属山口大学教育学部
内容記述(抄録等)1)Since the summer of 1982, a few samples of Cenozoic rocks have been collected for the paleo/rock magnetic study from the westcentral Kyushu Island; mainly at the Amakusa Isles district. Most of all data obtained on these rocks were already reported previously(Domen&Muneoka,1982,Muneoka&Domen,1983).In this report, the data newly obtained afterwards and also the previous ones mentioned above are summarized. Some more additional data will be appeared in the near future.2)Fig.1 is a map showing the sampling sites in this area. However geologic ages of these Cenozoic rock samples submitted to the present study are hardly to be decided, the samples are roughly devided into three groups of the geologic epock, namely,Pleistocene(Site Nos. 8 and 9),Pliocene(Site Nos. 1 , 7、10 and 11)and Miocene(Site Nos. 2,3,4and 12).0f course, these ages are dubious as mentioned above, and within the same group,the respective age is also out of the sequence.0n the other hand, the rock types are mainly andesites and few basaltics. Also liparite and tuff are seen (as shown in Table l appearing below).3)Remanent magnetizations; NRM and cleaned RM of the test specinlens were measured by means of an astatic magnetometer before and after the performance of AF demagnetization using a Rugby一ball shaped demagnetizer(Domen,1982).Few flake specimens chipped from respective rock sample thus measured-magnetic submitted to the thermo-magnetic (Js-T)analysis,for which an automatic thermo-magnetic balance was employed.4)The data about the paleomagnetic measurements thus obtained are shown in figures for the respective site as Fig. 2-1~Fig.2-12.
本文言語eng
主題自然科学
資料タイプtext
出版者山口大学教育学部
出版者ヨミヤマグチ ダイガク キョウイク ガクブ
NII資料タイプ紀要論文
ISSN0513-1693
NCIDAN00243950
学内刊行物(紀要等)山口大学教育学部研究論叢(第2部)
掲載誌名研究論叢. 自然科学
掲載誌名別表記Bulletin of the Faculty of Education, Yamaguchi University. Natural science
34
2
開始ページ87
終了ページ97
発行日1984-09
著者版/出版社版その他
リポジトリIDC020034000208
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/C020034000208