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A Redetermination of the Deuterium-Protium Ratio in Normal Water

✍ Scribed by Gabbard, J. L.; Dole, Malcolm

Book ID
126987455
Publisher
American Chemical Society
Year
1937
Tongue
English
Weight
551 KB
Volume
59
Category
Article
ISSN
0002-7863

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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