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Pal??omagnetism of Hawaiian lava flows

Nature

By:
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DOI: 10.1038/192645a0

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Abstract

PAL??OMAGNETIC investigations of volcanic rocks extruded in various parts of the world during the past several million years have generally revealed a younger sequence of lava flows magnetized nearly parallel to the field of a theoretical geocentric axial dipole, underlain by a sequence of older flows with exactly the opposite direction of remanent magnetization. A 180-degree reversal of the geomagnetic field, occurring near the middle of the Pleistocene epoch, has been inferred by many workers from such results1-3. This is a preliminary report of an investigation of 755 oriented samples collected from 152 lava flows on the island of Hawaii, selected to represent as many stratigraphic horizons as possible. (Sampling details are indicated in Table 1.) This work was undertaken because Hawaii's numerous thick sequences of lava flows, previously mapped as Pliocene to Historic by Stearns and Macdonald4, and afterwards assigned ages ranging from later Tertiary to Recent, by Macdonald and Davis5, appeared to offer an ideal opportunity to examine the most recent reversal of Earth's field. ?? 1961 Nature Publishing Group.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Pal??omagnetism of Hawaiian lava flows
Series title:
Nature
DOI:
10.1038/192645a0
Volume
192
Issue:
4803
Year Published:
1961
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
645
Last page:
646
Number of Pages:
2