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タイトルヨミ
イバラギ カコウガンタイ ノ コチ ジキ
日本語以外のタイトル
Paleomagnetism of the Ibaragi Granitic Complex
ファイル
言語
英語
著者
伊藤 晴明
時枝 克安
内容記述(抄録等)
The Ibaragi granitic complex is devided into two units of the Nose and Myoken plutons. The directions of remanent vector at each sampling site are well grouped and fall into two groups. The normal remanent vectors of the Nose pluton are almost northeasterly and the reversed ones are southwesterly. It is expected that some of these intermediate directions of magnetization was acquired at the time of a field transition. All samples from the Myoken pluton are normally magnetized and the directions of remanent vector are slightly northeasterly. A significant difference in direction of remanent vector between the Nose and Myoken plutons was found. This suggests that the directions of remanent vector have been affected by some tectonic movement after the intrusion of the plutons. Although there are a few restoring methods to find an original position of the plutons, we concluded that the Ibaragi complex has been tilted by a rotation about an axis in a tilted plane of about 15 ゜upward from the horizontal plane.
掲載誌名
島根大学理学部紀要
12
開始ページ
33
終了ページ
43
ISSN
03879925
発行日
1978-12-20
NCID
AN00108106
出版者
島根大学理学部
出版者別表記
The Faculty of Science, Shimane University
資料タイプ
紀要論文
部局
総合理工学部
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