Relative paleointensity across the last geomagnetic reversal from sediments of the Atlantic, Indian and Pacific oceans

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doi: 10.1029/93GL02815
Author(s): Valet, Jean-Pierre; Meynadier, Laure; Bassinot, Franck C.; Garnier, Florence
Author Affiliation(s): Primary:
Institut de Physique du Globe de Paris, Paris, France
Other:
CNRS, Laboratoire de Géologie du Quaternaire, France
Volume Title: Geophysical Research Letters
Source: Geophysical Research Letters, 21(6), p.485-488. Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0094-8276 CODEN: GPRLAJ
Note: In English. Institut de Physique du Globe de Paris (IPGP) Contrib. No. 1276. 20 refs.; illus. incl. sketch map
Summary: Paleointensity records from marine sediments at three locations in the Atlantic, Indian and Pacific oceans show coherent and reproducible signals across the Brunhes-Matuyama reversal. The low-field susceptibility signals are predominantly anticorrelated between the Indo-Pacific and the Atlantic sites while the normalization of the natural remanent magnetization by any rock magnetic parameter yield identical results. We deduce that in these cases climatic components do not induce first order effects in the determination of relative paleointensity. The results establish the worldwide character of the triangular pattern displayed by the decay and recovery phases of the field intensity variations across the Brunhes-Matuyama reversal. Copyright 1994 by the American Geophysical Union.
Year of Publication: 1994
Research Program: ODP Ocean Drilling Program
Key Words: 24 Surficial Geology, Quaternary Geology; Argentine Basin; Atlantic Ocean; Brunhes Chron; Cenozoic; Core KS752; Core MD9940; Indian Ocean; Leg 138; Madingley Rise; Magnetic intensity; Matuyama Chron; ODP Site 851; Ocean Drilling Program; Pacific Ocean; Paleomagnetism; Quaternary; Reversals; South American Atlantic; South Atlantic; Stratigraphic boundary; Upper Cenozoic; Upper Quaternary
Coordinates: N024612 N024614 W1103417 W1103419
Record ID: 1994054453
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