Publication Abstracts

Rampino and Caldeira 1992

Rampino, M.R., and K. Caldeira, 1992: Antipodal hotspot pairs on the Earth. Geophys. Res. Lett., 19, no. 20, 2011-2014, doi:10.1029/92GL01984.

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.

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BibTeX Citation

  author={Rampino, M. R. and Caldeira, K.},
  title={Antipodal hotspot pairs on the Earth},
  journal={Geophys. Res. Lett.},

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RIS Citation

ID  - ra04700w
AU  - Rampino, M. R.
AU  - Caldeira, K.
PY  - 1992
TI  - Antipodal hotspot pairs on the Earth
JA  - Geophys. Res. Lett.
VL  - 19
IS  - 20
SP  - 2011
EP  - 2014
DO  - 10.1029/92GL01984
ER  -

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