Magnetic analyses of new Antarctic iron meteorites
Four new Antarctic iron meteorites collected at Yamato meteorite ice field in 1979,Yamato-790517,-790724,-791076 and -791694,are magnetically analyzed. Characteristics of their magnetic hysteresis curves and thermomagnetic curves indicate the following meteoritic structures of these iron meteorites....
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National Institute of Polar Research
1984
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ftnipr:oai:nipr.repo.nii.ac.jp:00001734 2023-05-15T13:47:59+02:00 Magnetic analyses of new Antarctic iron meteorites Takesi Nagata Minoru Funaki Isamu Taguchi 1984-12 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1734 http://id.nii.ac.jp/1291/00001734/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1734&item_no=1&attribute_id=18&file_no=1 en eng National Institute of Polar Research R & D Laboratories-1, Nippon Steel Corporation https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1734 http://id.nii.ac.jp/1291/00001734/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 35, 302-318(1984-12) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1734&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1984 ftnipr 2022-11-12T19:42:34Z Four new Antarctic iron meteorites collected at Yamato meteorite ice field in 1979,Yamato-790517,-790724,-791076 and -791694,are magnetically analyzed. Characteristics of their magnetic hysteresis curves and thermomagnetic curves indicate the following meteoritic structures of these iron meteorites. Yamato-790517 is a Ni-poor ataxite consisting of kamacite matrix of 6.4 wt% Ni, unequilibrated Ni-rich kamacite specks of about 12 wt% Ni and taenite specks. Yamato-790724 is a coarse octahedrite of kamacite matrix of 7.0 wt% Ni and taenite specks. yamato-791076 is a finest octahedrite or an ataxite which consists of kamacite of 7.3 wt% Ni and plessite of about 12 wt% Ni. Yamato-791694 is a Ni-rich ataxite consisting mostly of taenite of about 40 wt% Ni and a small amount of kamacite specks. Two Antarctic iron meteorites collected near Allan Hills in Victoria Land in 1977,Allan Hills-77263 and -77289,also are magnetically analyzed. Both the iron meteorites are coarse octahedrites comprising kamacite matrix of about 6.5 wt% Ni and taenite specks. Report Antarc* Antarctic Memoirs of National Institute of Polar Research Polar Research Victoria Land National Institute of Polar Research Repository, Japan Allan Hills ENVELOPE(159.667,159.667,-76.717,-76.717) Antarctic Victoria Land Yamato ENVELOPE(35.583,35.583,-71.417,-71.417) |
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Open Polar |
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National Institute of Polar Research Repository, Japan |
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ftnipr |
language |
English |
description |
Four new Antarctic iron meteorites collected at Yamato meteorite ice field in 1979,Yamato-790517,-790724,-791076 and -791694,are magnetically analyzed. Characteristics of their magnetic hysteresis curves and thermomagnetic curves indicate the following meteoritic structures of these iron meteorites. Yamato-790517 is a Ni-poor ataxite consisting of kamacite matrix of 6.4 wt% Ni, unequilibrated Ni-rich kamacite specks of about 12 wt% Ni and taenite specks. Yamato-790724 is a coarse octahedrite of kamacite matrix of 7.0 wt% Ni and taenite specks. yamato-791076 is a finest octahedrite or an ataxite which consists of kamacite of 7.3 wt% Ni and plessite of about 12 wt% Ni. Yamato-791694 is a Ni-rich ataxite consisting mostly of taenite of about 40 wt% Ni and a small amount of kamacite specks. Two Antarctic iron meteorites collected near Allan Hills in Victoria Land in 1977,Allan Hills-77263 and -77289,also are magnetically analyzed. Both the iron meteorites are coarse octahedrites comprising kamacite matrix of about 6.5 wt% Ni and taenite specks. |
format |
Report |
author |
Takesi Nagata Minoru Funaki Isamu Taguchi |
spellingShingle |
Takesi Nagata Minoru Funaki Isamu Taguchi Magnetic analyses of new Antarctic iron meteorites |
author_facet |
Takesi Nagata Minoru Funaki Isamu Taguchi |
author_sort |
Takesi Nagata |
title |
Magnetic analyses of new Antarctic iron meteorites |
title_short |
Magnetic analyses of new Antarctic iron meteorites |
title_full |
Magnetic analyses of new Antarctic iron meteorites |
title_fullStr |
Magnetic analyses of new Antarctic iron meteorites |
title_full_unstemmed |
Magnetic analyses of new Antarctic iron meteorites |
title_sort |
magnetic analyses of new antarctic iron meteorites |
publisher |
National Institute of Polar Research |
publishDate |
1984 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1734 http://id.nii.ac.jp/1291/00001734/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1734&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(159.667,159.667,-76.717,-76.717) ENVELOPE(35.583,35.583,-71.417,-71.417) |
geographic |
Allan Hills Antarctic Victoria Land Yamato |
geographic_facet |
Allan Hills Antarctic Victoria Land Yamato |
genre |
Antarc* Antarctic Memoirs of National Institute of Polar Research Polar Research Victoria Land |
genre_facet |
Antarc* Antarctic Memoirs of National Institute of Polar Research Polar Research Victoria Land |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1734 http://id.nii.ac.jp/1291/00001734/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 35, 302-318(1984-12) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1734&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766248306648809472 |