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Investigation of time dependent inner core structure by the analysis of free oscillation spectra

Abstract:

Proposals that the seismic structure of the Earth's inner core is time-dependent are investigated using the splitting functions of free oscillations, determined from seismic data recorded over some 20 years. It is shown that the data support some time-dependence, although the paucity of the data for the 1970's and 1980's makes it difficult to be certain of the precise form of such time dependence. The data do not support a positive (i.e. West-to-East) rotation; rather, the inferred rotational...

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Publication status:
Published

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Volume:
50
Issue:
11-12
Pages:
1013-1018
Publication date:
1998-01-01
ISSN:
1343-8832
URN:
uuid:f556cdc6-ec77-47cf-ab34-5e18880d908a
Source identifiers:
166326
Local pid:
pubs:166326

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