Magnetic properties and natural remanent magnetization of carbonaceous chondrites containing pyrrhotite
スポンサーリンク
概要
- 論文の詳細を見る
Magnetic properties, NRM characteristics and magnetic minerals of four carbonaceous chondrites, the Allende, the Leoville, Y-74662 and Y-81020,are examined. These C-chondrites contain ferrimagnetic pyrrhotite grains in addition to magnetite, kamacite and/or taenite as magnetic minerals possessing NRM. The low temperature NRM component which is possessed by ferrimagnetic pyrrhotite at temperatures below 300℃, indicates that the corresponding paleointensity (F_p) is around 1 Oe in order of magnitude. The high temperature NRM component possessed by magnetite and/or taenite is magnetic at temperatures below about 600℃, giving rise to F_p≲0.1 Oe. The kamacite magnetization contributes very little at temperatures below 770℃.
- 国立極地研究所の論文
著者
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Funaki Minoru
National Institute of Polar Research
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KOJIMA Hideyasu
National Institute of Polar Research
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Nagata Takesi
National Institute of Polar Research
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Funaki Minoru
National Inst. Of Polar Res. 9-10 Kaga 1 Itabashi Tokyo 173-8515 Jpn
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