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Random crustal magnetization and its effect on coherence of short-wavelength marine magnetic anomalies

Earth and Planetary Science Letters

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Abstract

Recent studies of DSDP samples from layer 2A of oceanic basement have found complex magnetic stratigraphies that seem incompatible with the frequent existence of linear short-wavelength anomalies caused by palaeomagnetic field behavior. Statistical models are developed for the lateral variation of the average magnetization of layer 2A: a Poisson series for reversals of the earth's field and a stairstep random series for discrete magnetic units. It is shown with the power-density spectra of these statistical models that lateral inhomogeneities must average out over distances of less than a few hundred meters. Specifically, individual magnetic units of the type seen at DSDP Site 332 cannot extend uniformly for distances greater than a few hundred meters. ?? 1979.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Random crustal magnetization and its effect on coherence of short-wavelength marine magnetic anomalies
Series title:
Earth and Planetary Science Letters
Volume
46
Issue:
1
Year Published:
1979
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Earth and Planetary Science Letters
First page:
43
Last page:
48
Number of Pages:
6