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タイトルA comment on the NRM measurement of rocks by means of a spinner magnetometer
作成者堂面, 春雄
森口, 泰枝
宗岡, 浩
作成者ヨミドウメン, ハルオ
モリグチ, ヤスエ
ムネオカ, ヒロシ
作成者別表記Domen, Haruo
Moriguchi, Yasue
Muneoka, Hiroshi
作成者所属山口大学教育学部
内容記述(抄録等)One of the present authors (H.D.)previously made a comparison to measure an NRM(natural remanent magnetization)of a rock sample between the measurements by means of an astatic and a spinner magnetometers and he noticed that 24 varia-tions may be considered of the spin-holding of a test specimen to be determined its NRM by means of a spinner magnetometer (Domen 1979).That is to say, the spec-imen is revolved successively about 6 axes;±X,±Y and ±Z of the coordinate system fixed within the specimen (Fig.1). As has been seen such a variety of the spinning,at least the 2 -spin may give X,Y and Z components of the magnetic moment of a specimen without redundant rotations.0ne in 3 axes of the fixed coordinate mentioned above is measured twice,because the others are selected as rotational axis successively. The former component is need not to be an axis for revolving. Then,at least ‘ 3 -spin”measurement is employed so that the measurement of each component of the magnetic vector is evenly performed, that is to say, every axis is measured twice.However,the specimen magnetized heterogeneously requires to be determined of its magnetic moment by more redundant measurements,say 6 -,12-and also 24-spin holdings. In this report, such the unhomogeneously magnetized specimen is discussed.A model specimen which containes a magnetic needle within is prepared and measured its magnetic vector in some variations. Then,a rock specimen is measured as well ; the bulk specimen (mother sample)is devided into fractions (child specimen).Those NRM are measured.
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
31
2
開始ページ13
終了ページ20
発行日1981-09
著者版/出版社版その他
リポジトリIDC020031000203
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/C020031000203