Mathematics – Logic
Scientific paper
Dec 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990em%26p...50..471k&link_type=abstract
Earth, Moon, and Planets (ISSN 0167-9295), vol. 50-51, July-Dec. 1990, p. 471-491.
Mathematics
Logic
7
Planetary Geology, Radar Imagery, Ridges, Structural Properties (Geology), Venus Surface, Satellite Imagery, Topography, Venera Satellites
Scientific paper
The controversy concerning the origin of the ridge belts found to exist on the plains of Venus in the radar survey of Venera-12 and Venera-16 is discussed. A review is presented of evidence which supports the theory of ridge formation due to extension and compression observed within the ridge belts. The major speculative ideas and models of the ridge belt origin are discussed. The argument in support of ridge formation by extension suggests that these linear features are results of crust cracking and the intruding of magma along these cracks. It is proposed that the ridge of belts can be analogies of the orogenic belts and subduction zones on earth. It is noted that the question of the ridge belts' origin remains controversial. Future indicators to be collected which may provide more certain geological interpretations of the ridge belt formation are listed.
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