Computer Science
Scientific paper
Apr 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990em%26p...49...57r&link_type=abstract
Earth, Moon, and Planets (ISSN 0167-9295), vol. 49, April 1990, p. 57-83. Research supported by the Finnish Cultural Foundation
Computer Science
2
Orography, Plates (Tectonics), Venera Satellites, Venus Surface, Planetary Crusts, Radar Imagery, Volcanoes
Scientific paper
The conclusion that the different ridge belt-bounded planitia and parquet terrains studied here define Venusian crustal plate-like units is evidently valid in the context of compressional ridge belt tectonics. The long ridge belts of Kamari and Tellus Dorsa, the ridge belts in the transition zone between Ishtar Terra and planitiae and Ausra Dorsa support the idea of NW-SE, (N-S) or E-W compression components, respectively. The planitia plates have been pushed from the south or southeast against the Ishtar Terra/ Fortuna Tessera highland, which has opposed the movement, giving the impression of a relative southeast-directed force. The volcano/diapiric transition zone between these colliding crustal units or plates evidently indicates mobilization of the subsurace unit overthrust by the parquet terrain.
Raitala Jouko
Törmänen T.
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