A FEASIBILITY STUDY ON HELIUM ISOTOPES IN ICE CORE
P(論文) The isotope ratio of atmospheric helium, ^3He/^4He ratio, is believed to be constant on a global scale since the mixing time for the atmosphere is significantly shorter than the residence time for helium. Human activity such as fossil fuel exploitation may release significant amounts of crusta...
Main Authors: | , , , , , , , , , , , |
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Language: | English |
Published: |
National Institute of Polar Research
1992
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Subjects: | |
Online Access: | https://nipr.repo.nii.ac.jp/record/3756/files/KJ00000767910.pdf https://doi.org/10.15094/00003756 https://nipr.repo.nii.ac.jp/records/3756 |