ON THE VIGOR OF MANTLE CONVECTION IN SUPER-EARTHS

DOI Web Site Web Site 被引用文献6件 参考文献26件 オープンアクセス

書誌事項

公開日
2013-12-10
資源種別
journal article
権利情報
  • http://iopscience.iop.org/info/page/text-and-data-mining
  • http://iopscience.iop.org/page/copyright
DOI
  • 10.1088/2041-8205/780/1/l8
公開者
American Astronomical Society

この論文をさがす

説明

Numerical models are presented to clarify how adiabatic compression affects thermal convection in the mantle of super-Earths ten times the Earth's mass. The viscosity strongly depends on temperature, and the Rayleigh number is much higher than that of the Earth's mantle. The strong effect of adiabatic compression reduces the activity of mantle convection; hot plumes ascending from the bottom of the mantle lose their thermal buoyancy in the middle of the mantle owing to adiabatic decompression, and do not reach the surface. A thick lithosphere, as thick as 0.1 times the depth of the mantle, develops along the surface boundary, and the efficiency of convective heat transport measured by the Nusselt number is reduced by a factor of about four compared with the Nusselt number for thermal convection of incompressible fluid. The strong effect of adiabatic decompression is likely to inhibit hot spot volcanism on the surface and is also likely to affect the thermal history of the mantle, and hence, the generation of magnetic field in super-Earths.

収録刊行物

被引用文献 (6)*注記

もっと見る

参考文献 (26)*注記

もっと見る

関連プロジェクト

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ