Title: Geomagnetic Reversal Transitions and D” Layer
Abstract:To have found geological sections that record polarity reversals and could be sampled in detail is a great advance in palaeomagnetism (Laj et al., 1991). Reversals over the last 11 Myr (Laj et al., 19...To have found geological sections that record polarity reversals and could be sampled in detail is a great advance in palaeomagnetism (Laj et al., 1991). Reversals over the last 11 Myr (Laj et al., 1988; Valet et al., 1988; Tric et al., 1991a,b) suggest that the core dynamo reverses by the rotation of the dipole through 180°, at least in many cases, rather than, as was thought previously, by the field becoming non-dipolar or by disappearing. The paths of the virtual geomagnetic poles (VGP's) during these transitions seem to fall in two longitude sectors, one through the Americas and the other, 180° away, through Australia and Eastern Asia.Read More
Publication Year: 1993
Publication Date: 1993-06-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 1
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