An estimate of the thickness of the lithosphere of Venus on the basis of its gravitational field

Details An estimate of the thickness of the lithosphere of Venus on the basis of its gravitational field An estimate of the thickness of the lithosphere of Venus on the basis of its gravitational field

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989azh....66..120t&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 66, Jan.-Feb. 1989, p. 120-125. In Russian.

Astronomy and Astrophysics

Astronomy

Gravitational Fields, Lithosphere, Planetary Gravitation, Venus Surface, Density Distribution, Ellipsoids, Planetary Mantles, Venus Atmosphere, Venus, Lithosphere, Thickness, Gravity Fields, Mantle, Comparisons, Atmosphere, Density, Outgassing, Calculations

Scientific paper

It is shown that density inhomogeneities do not disturb the oblateness of Venus; however, they completely define the horizontal axes of the three-axis geodetic ellipsoid. The oblateness of Venus is ancient and is supported by a very thick lithosphere (about 900 km thick). If Venus' mantle is very dry, then the planet's lithosphere may be thicker and more rigid than the earth's.

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