Preliminary report on metamict cerianite from Nesoya, Lutzow-Holmbunkta, East Antarctica
P(論文) Mineralogical studies of a blackish mineral with strong radioactivity from microcline pegmatites of Nesoya, Lutzow-Holmbukta, East Antarctica, were performed. This mineral has been completely or almost completely transformed into a metamict state. However, in a heat treatment (1000℃, 7 hours),...
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ftnipr:oai:nipr.repo.nii.ac.jp:00001245 2024-09-09T19:06:45+00:00 Preliminary report on metamict cerianite from Nesoya, Lutzow-Holmbunkta, East Antarctica Matsumoto, Yukio Sakamoto, Arata 1982-03 application/pdf https://nipr.repo.nii.ac.jp/record/1245/files/KJ00000011771.pdf eng eng Memoirs of National Institute of Polar Research. Special issue 21 103 111 AA00733561 https://nipr.repo.nii.ac.jp/record/1245/files/KJ00000011771.pdf 1982 ftnipr 2024-06-17T04:00:31Z P(論文) Mineralogical studies of a blackish mineral with strong radioactivity from microcline pegmatites of Nesoya, Lutzow-Holmbukta, East Antarctica, were performed. This mineral has been completely or almost completely transformed into a metamict state. However, in a heat treatment (1000℃, 7 hours), the powder pattern is identical with cerianite, and the unit cell dimension calculated from the powder X-ray diffraction data is α_0=5.451A. According to the qualitative analysis by an electron probe X-ray microanalyzer, the mineral consists of lanthanoids and other elements, such as La, Ce, Pr, Nd, Sm, Eu, Gd, Th, Xe, Cs, Pb, Rh, etc. Both the X-ray diffraction data and chemical analysis identify this mineral as a metamict cerianite [Ce(Th)O_2]. departmental bulletin paper Other/Unknown Material Antarc* Antarctica East Antarctica Memoirs of National Institute of Polar Research Polar Research National Institute of Polar Research Repository, Japan East Antarctica Nesoya ENVELOPE(39.567,39.567,-69.000,-69.000) |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
P(論文) Mineralogical studies of a blackish mineral with strong radioactivity from microcline pegmatites of Nesoya, Lutzow-Holmbukta, East Antarctica, were performed. This mineral has been completely or almost completely transformed into a metamict state. However, in a heat treatment (1000℃, 7 hours), the powder pattern is identical with cerianite, and the unit cell dimension calculated from the powder X-ray diffraction data is α_0=5.451A. According to the qualitative analysis by an electron probe X-ray microanalyzer, the mineral consists of lanthanoids and other elements, such as La, Ce, Pr, Nd, Sm, Eu, Gd, Th, Xe, Cs, Pb, Rh, etc. Both the X-ray diffraction data and chemical analysis identify this mineral as a metamict cerianite [Ce(Th)O_2]. departmental bulletin paper |
author |
Matsumoto, Yukio Sakamoto, Arata |
spellingShingle |
Matsumoto, Yukio Sakamoto, Arata Preliminary report on metamict cerianite from Nesoya, Lutzow-Holmbunkta, East Antarctica |
author_facet |
Matsumoto, Yukio Sakamoto, Arata |
author_sort |
Matsumoto, Yukio |
title |
Preliminary report on metamict cerianite from Nesoya, Lutzow-Holmbunkta, East Antarctica |
title_short |
Preliminary report on metamict cerianite from Nesoya, Lutzow-Holmbunkta, East Antarctica |
title_full |
Preliminary report on metamict cerianite from Nesoya, Lutzow-Holmbunkta, East Antarctica |
title_fullStr |
Preliminary report on metamict cerianite from Nesoya, Lutzow-Holmbunkta, East Antarctica |
title_full_unstemmed |
Preliminary report on metamict cerianite from Nesoya, Lutzow-Holmbunkta, East Antarctica |
title_sort |
preliminary report on metamict cerianite from nesoya, lutzow-holmbunkta, east antarctica |
publishDate |
1982 |
url |
https://nipr.repo.nii.ac.jp/record/1245/files/KJ00000011771.pdf |
long_lat |
ENVELOPE(39.567,39.567,-69.000,-69.000) |
geographic |
East Antarctica Nesoya |
geographic_facet |
East Antarctica Nesoya |
genre |
Antarc* Antarctica East Antarctica Memoirs of National Institute of Polar Research Polar Research |
genre_facet |
Antarc* Antarctica East Antarctica Memoirs of National Institute of Polar Research Polar Research |
op_relation |
Memoirs of National Institute of Polar Research. Special issue 21 103 111 AA00733561 https://nipr.repo.nii.ac.jp/record/1245/files/KJ00000011771.pdf |
_version_ |
1809820787490684928 |