The intensification of glaciation in the mid-Pliocene and the Earth's obliquity variation

Tatsuya Tsutsumi, Masao Nakada

研究成果: Contribution to journalArticle査読

抄録

The intensification of glaciation in the northern hemisphere during the past 3 Myr has clearly been confirmed by δ18O record for deep-sea sediment cores extending over the past 5-6 Myr. For earth models with a lower mantle viscosity of greater than 1022 Pa s inferred from several geophysical observables, perturbations in the Earth's dynamic ellipticity in response to this long term climatic change might have produced an increase of the average Earth's obliquity 0.06°through the resonant effect associated with the orbits of Jupiter and Saturn. This predicted obliquity change may consequently operate as a negative feedback on solar insolation, resulting in a reduction of the intensification of glaciation.

本文言語英語
ページ(範囲)3879-3882
ページ数4
ジャーナルGeophysical Research Letters
25
20
DOI
出版ステータス出版済み - 10 15 1998

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

フィンガープリント 「The intensification of glaciation in the mid-Pliocene and the Earth's obliquity variation」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル