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Updated: Jul 2, 2026

Sediment Core Extrusion Method at Millimeter Resolution Using a Calibrated, Threaded-rod
06:06

Sediment Core Extrusion Method at Millimeter Resolution Using a Calibrated, Threaded-rod

Published on: August 17, 2016

コメント "海洋オスミウム同位体記録からコンドリティックインパクターサイズを決定する"

Joanna V Morgan1

  • 1Earth Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK. j.morgan@imperial.ac.uk

Science (New York, N.Y.)
|August 30, 2008
PubMed
まとめ

海洋堆積物におけるオスミウム同位体比は,インパクターサイズを推定することができます. しかし,インパクター物質が海水に溶ける割合は小さく,予測できないため,以前の仮定を再評価する必要があります.

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Mass Spectrometry: Isotope Effect01:13

Mass Spectrometry: Isotope Effect

Most elements exist in nature as a mixture of isotopes. The isotopes differ in weight due to their respective number of neutrons. The molecular weight of a molecule is different depending on the specific isotope of its elements involved. As a result, the mass spectrum of the molecule exhibits peaks from the same fragment at multiple positions. The positions of these mass signals depend on the mass differences between isotopes. Furthermore, the intensity of these signals is dependent on the...