SIMS measurement of magnesium isotopic ratios in ALH-77278 and -77307 chondrites

P(論文) Isotopic ratios of ^<24>(Mg)/^<25>(Mg) and ^<26>(Mg)/^<25>(Mg) have been measured for Mg-rich and Al-poor portions of matrix areas of ALH-77278 and -77307 meteorites by ion microprobe mass spectrometry. The magnesium isotopic ratios for the meteorites were compared with...

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Main Authors: Nishimura, Hiroshi, Okano, Jun
Language:English
Published: 1983
Subjects:
Memoirs of National Institute of Polar Research
Polar Research
Online Access:https://nipr.repo.nii.ac.jp/record/1571/files/KJ00000012204.pdf
id ftnipr:oai:nipr.repo.nii.ac.jp:00001571
record_format openpolar
spelling ftnipr:oai:nipr.repo.nii.ac.jp:00001571 2024-09-09T19:51:58+00:00 SIMS measurement of magnesium isotopic ratios in ALH-77278 and -77307 chondrites Nishimura, Hiroshi Okano, Jun 1983-12 application/pdf https://nipr.repo.nii.ac.jp/record/1571/files/KJ00000012204.pdf eng eng Memoirs of National Institute of Polar Research. Special issue 30 332 340 AA00733561 https://nipr.repo.nii.ac.jp/record/1571/files/KJ00000012204.pdf 1983 ftnipr 2024-06-17T04:00:49Z P(論文) Isotopic ratios of ^<24>(Mg)/^<25>(Mg) and ^<26>(Mg)/^<25>(Mg) have been measured for Mg-rich and Al-poor portions of matrix areas of ALH-77278 and -77307 meteorites by ion microprobe mass spectrometry. The magnesium isotopic ratios for the meteorites were compared with that for a terrestrial forsterite of laboratory standard. Clear excesses of ^<24>(Mg) up to 10 permil have been found for the portions where concentration ratio of Al/Mg was less than 0.1 and that of Mg/Si was between 1.8 and 2.2. departmental bulletin paper Other/Unknown Material Memoirs of National Institute of Polar Research Polar Research National Institute of Polar Research Repository, Japan
institution Open Polar
collection National Institute of Polar Research Repository, Japan
op_collection_id ftnipr
language English
description P(論文) Isotopic ratios of ^<24>(Mg)/^<25>(Mg) and ^<26>(Mg)/^<25>(Mg) have been measured for Mg-rich and Al-poor portions of matrix areas of ALH-77278 and -77307 meteorites by ion microprobe mass spectrometry. The magnesium isotopic ratios for the meteorites were compared with that for a terrestrial forsterite of laboratory standard. Clear excesses of ^<24>(Mg) up to 10 permil have been found for the portions where concentration ratio of Al/Mg was less than 0.1 and that of Mg/Si was between 1.8 and 2.2. departmental bulletin paper
author Nishimura, Hiroshi
Okano, Jun
spellingShingle Nishimura, Hiroshi
Okano, Jun
SIMS measurement of magnesium isotopic ratios in ALH-77278 and -77307 chondrites
author_facet Nishimura, Hiroshi
Okano, Jun
author_sort Nishimura, Hiroshi
title SIMS measurement of magnesium isotopic ratios in ALH-77278 and -77307 chondrites
title_short SIMS measurement of magnesium isotopic ratios in ALH-77278 and -77307 chondrites
title_full SIMS measurement of magnesium isotopic ratios in ALH-77278 and -77307 chondrites
title_fullStr SIMS measurement of magnesium isotopic ratios in ALH-77278 and -77307 chondrites
title_full_unstemmed SIMS measurement of magnesium isotopic ratios in ALH-77278 and -77307 chondrites
title_sort sims measurement of magnesium isotopic ratios in alh-77278 and -77307 chondrites
publishDate 1983
url https://nipr.repo.nii.ac.jp/record/1571/files/KJ00000012204.pdf
genre Memoirs of National Institute of Polar Research
Polar Research
genre_facet Memoirs of National Institute of Polar Research
Polar Research
op_relation Memoirs of National Institute of Polar Research. Special issue
30
332
340
AA00733561
https://nipr.repo.nii.ac.jp/record/1571/files/KJ00000012204.pdf
_version_ 1809921305208684544

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