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Density of Light Water: Ratio of Deuterium to Hydrogen in Rain-Water

✍ Scribed by CHRISTIANSEN, W. N.; CRABTREE, R. W.; LABY, T. H.

Book ID
109511553
Publisher
Nature Publishing Group
Year
1935
Tongue
English
Weight
141 KB
Volume
135
Category
Article
ISSN
0028-0836

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The deuterium to protium (D/H) ratio of the deep mantle may be a remnant of the hydrogen isotopic composition of Earth forming planetesimals, which later evolved as a result of the late accretion of asteroids and comets. If so, the mass of asteroids and comets incident on Earth since the time of its