Anisotropy in the inner core: Could it be due to low-order convection?

被引：60

作者：

Romanowicz, B ^{[1
]}

Li, XD ^{[1
]}

Durek, J ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,DEPT GEOL & GEOPHYS,BERKELEY,CA 94720

来源：

SCIENCE | 1996年 / 274卷 / 5289期

关键词：

D O I：

10.1126/science.274.5289.963

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A recently assembled data set of inner core-sensitive free oscillation splitting measurements and body wave differential travel times provides constraints on the patterns of anisotropy in the Earth's inner core. Applying a formalism that allows departures from radial symmetry and cylindrical anisotropy results in models with P-wave velocity distributions whose strength and pattern are incompatible with frozen-in anisotropy, but rather suggest a simple large-scale convection regime in the inner core.

引用

页码：963 / 966

页数：4

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