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Detailed Reference Information |
Rampino, M.R. and Caldeira, K. (1992). Antipodal hotspot pairs on the Earth. Geophysical Research Letters 19: doi: 10.1029/92GL01984. issn: 0094-8276. |
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The results of statistical analyses performed on three published hotspot distributions suggest that significantly more hotspots occur as nearly antipodal pairs than is anticipated from a random distribution, or from their association with geoid highs and divergent plate margins. The observed number of antipodal hotspot pairs depends on the maximum allowable deviation from exact antipodality. At a maximum deviation of ≤700 km, 26% to 37% of hotspots form antipodal pairs in the published lists examined here, significantly more than would be expected from the general hotspot distribution. Two possible mechanisms that might create such a distribution include: (1) symmetry in the generation of mantle plumes, and (2) melting related to antipodal focusing of seismic energy from large-body impacts. ¿ American Geophysical Union 1992 |
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Abstract |
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Keywords
Tectonophysics, Dynamics of the lithosphere and mantle, Planetology, Solid Surface Planets and Satellites, Tectonics, Planetology, Solid Surface Planets and Satellites, Volcanism, Marine Geology and Geophysics, Plate tectonics |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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