Mathematics – Logic
Scientific paper
Dec 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995sosyr..29..450b&link_type=abstract
Solar System Research, Vol. 29, No. 6, p. 450 - 459
Mathematics
Logic
1
Venus Surface: Valleys, Venus Surface: Origin, Venus: Surface Structure
Scientific paper
Photo-planetologic mapping of the region around Vallis Baltis, the longest (6800 km) valley of the canali type on Venus, revealed six stratigraphic units whose relations with one another persist within the mapped region and conform to the stratigraphic relationships found earlier in 36 test areas, 1000×1000 km each. The most abundant terrain features in the mapped region are plains with wrinkle ridges (Pwr). They consist of two subunits, separated in time by the process of the formation of Vallis Baltis. Both Pwr subunits and Vallis Baltis are deformed by wrinkle ridges. The persistence of age relationships among the Pwr subunits, the wrinkle ridges, and Vallis Baltis indicates that Pwr subunits are a genuine stratigraphic marker and not a mosaic of plain domains formed at significantly differing times. This contradicts the equilibrium resurfacing model (Phillips et al., 1992) and indirectly favors the catastrophic global resurfacing model (Schaber et al., 1992).
Basilevskij A. T.
Head James W.
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