SIMS measurement of magnesium isotopic ratios in Yamato-74191 and -75028 meteorites
スポンサーリンク
概要
- 論文の詳細を見る
Isotopic ratios of ^<24>(Mg)/^<25>(Mg) and ^<26>(Mg)/^<25>(Mg) have been measured for Mg-rich and A1-poor portions of matrix parts of the Yamato-74191 and -75028 meteorites with a Hitachi IMA 2A ion microprobe mass analyzer. Several terrestrial samples of lherzolites and a dunite were also analyzed. A clear evidence for the excess of ^<24>(Mg) has been found in the portions of Yamato-74191,where Mg/Si ratio is higher than 1.5 and Al/Mg ratio is less than 0.13. This excess ^<24>(Mg) can be evidence for the heterogeneity of the primordial solar nebula.
- 国立極地研究所の論文
著者
-
Nishimura Hiroshi
Institute Of Low Temperature Science Hokkaido University
-
Okano Jun
Institute Of Geological Sciences College Of General Education Osaka University
-
Nishimura Hiroshi
Institute Of Geological Sciences College Of General Education Osaka University
関連論文
- POLEX-SOUTH DATA, PART 6 AEROLOGICAL SOUNDING OF LOWER ATMOSPHERIC LAYER OVER MIZUHO PLATEAU, EAST ANTARCTICA
- POLEX-South data, Part 6 Aerological sounding of lower atmospheric layer over Mizuho Plateau, East Antarctica(Meteorology 17)
- POLEX-SOUTH DATA, PART 5 : MICROMETEOROLOGICAL DATA AT MIZUHO STATION AND TEMPORARY STATIONS IN MIZUHO PLATEAU, ANTARCTICA IN 1981
- The climate of the interior of Mizuho Plateau
- POLEX-South data, Part 5. Micrometeorological data at Mizuho Station and temporary stations in Mizuho Plateau, Antarctica in 1981(Meteorology 14)
- GLACIOLOGICAL DATA COLLECTED BY THE JAPANESE ANTARCTIC RESEARCH EXPEDITION IN 1981
- Glaciological data collected by the JapaneseAntarctic Research Expedition in 1981(Glaciology 9)
- METEOROLOGICAL DATA AT MIZUHO STATION, ANTARCTICA IN 1981
- Meteorological data at Mizuho Station,Antarctica in 1981(Meteorology 12)
- A new explanation of bending of a snow density profile
- Isotopic Ratio of Lithium in Chondrite Measured by an Ion Probe Mass Spectrometer
- Isotopic Abundances of Germanium Determined by Secondary Ion Mass Spectrometry
- SIMS measurement of magnesium isotopic ratios in Yamato-74191 and -75028 meteorites
- SIMS measurement of magnesium isotopic ratios in ALH-77278 and -77307 chondrites
- SIMS measurement of magnesium isotopic ratios in chondrites
- K-Ar Age of Yamato Meteorite, Yamato-74190-01(L)
- K-Ar Ages of Yamato-74 Meteorites
- An Oxygen Ion Source for the Secondary Ion Mass Spectrometer
- Ion Microprobe and Electron Microprobe Studies on Magnesium Isotopic Abundances in Olivine Minerals from the Allende Carbonaceous Chondrite (SIMS特集)
- Improvement of Detectable Limit of an Ion Probe Mass Spectrometer