Impingement of mantle plumes on the lithosphere - Contrast between earth and Venus

Details Impingement of mantle plumes on the lithosphere - Contrast between earth and Venus Impingement of mantle plumes on the lithosphere - Contrast between earth and Venus

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992georl..19..885e&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 19, no. 9, May 4, 1992, p. 885-888. Research supported by Department of Ener

Physics

8

Earth Mantle, Impingement, Lithosphere, Planetary Geology, Plumes, Venus (Planet), Mathematical Models, Two Dimensional Models, Volcanology

Scientific paper

The penetration, ascent, melt production, cooling and solidification of a mantle plume as it impinges on the base of the lithosphere are modeled as functions of the lithospheric temperature and thickness. The models indicate that, if mantle and plume temperatures and plume dimensions of Venus are similar to those of earth, the higher lithospheric temperature of Venus causes higher ascent of plumes into the lithosphere and a greater amount of lithospheric melting. However, the rates of intraplate volcanism on Venus and earth appear to be similar, indicating that mantle or plume temperatures may be less or plumes may be smaller in Venus than in earth.

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