書誌事項
- タイトル別名
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- Consequences of Anisotropic Viscosity in the Earth's Mantle
- ネンセイリツ ニ イホウセイ ガ アル ト ドウ ナル カ
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抄録
The viscous relaxation spectra and the marginal stability curves of Rayleigh-Bénard convection in a transversely isotropic fluid were computed. An incompressible, transversely isotropic fluid is expressed in terms of two material constants, L and δ. L is the viscosity pertinent to the shear in the horizontal plane and δ is the anisotrpy factor. δ is likely to be very large in the mantle if thin less viscous (molten) layers are aligned in the horizontal plane. At large δ the relaxation spectra become nearly constant over a wide range of wavenumber and its magnitude is determined essentially by the product L·δ. The flattness is consistent to the observed relaxation spectra. A similar effect is found in the Rayleigh-Bénard convection; the marginal stability curve flattens out to small wavenumber at large δ. This implies a possibility of thin convection cells in the earth's mantle.
収録刊行物
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- 地震 第2輯
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地震 第2輯 37 (2), 237-245, 1984
公益社団法人 日本地震学会
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詳細情報 詳細情報について
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- CRID
- 1390001204303144704
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- NII論文ID
- 130006783532
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- NII書誌ID
- AN00305741
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- ISSN
- 18839029
- 2186599X
- 00371114
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- NDL書誌ID
- 2992147
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可