高圧力の科学と技術
Online ISSN : 1348-1940
Print ISSN : 0917-639X
ISSN-L : 0917-639X
特集:地球深部における化学的不均質
初期地球内部における物質分化:同位体地球化学と高圧融解実験からの制約
小木曽 哲近藤 望
著者情報
ジャーナル フリー

2017 年 27 巻 4 号 p. 256-265

詳細
抄録

We conducted isotopic model calculations and high-pressure melting experiments in order to estimate the major element composition of the “missing reservoir”, which is a supposed component that should compensate the difference in 142Nd/144Nd ratio between the bulk silicate Earth and carbonaceous chondrite, from which the Earth is assumed to have formed. Our estimation demonstrated that the missing reservoir should have picritic to komatiitic composition, and that it was likely to have been lost from the Earth's surface by a giant impact event at the last stage of the Earth formation.

著者関連情報
© 2017 日本高圧力学会
前の記事 次の記事
feedback
Top