Mathematics – Logic
Scientific paper
Dec 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990em%26p...50..493a&link_type=abstract
Earth, Moon, and Planets (ISSN 0167-9295), vol. 50-51, July-Dec. 1990, p. 493-532.
Mathematics
Logic
31
Domes (Geology), Radar Imagery, Satellite Imagery, Venus Surface, Volcanology, Heat Transmission, Tectonics, Venera Satellites
Scientific paper
The areal and size-frequency distribution, abundance, individual characteristics, and geologic and regional associations of small domes in the Venera data set are examined. It is noted that, because of their numbers and widespread occurence, regardless of origin, these structures will be important in the local and global geographic interpretation of the surface. It is concluded that small domes of 20 km in diameter occur in numbers of order 10,000 on the northern quarter of the surface of Venus, and that small domes are interpreted to be predominantly low shield volcanos and to represent multiple centralized effusive eruptions of discrete volumes over finite periods. It is noted that small domes occur throughout the northern latitudes, but attain maximum regional concentrations in two areas, one located north of Thetis Regio in Akkruva Colles, and another located on the northeast flanks of Beta Regio in Guinevere Planitia. The presence of two global concentrations implies that magma production and eruption were enhanced within these two areas.
Aubele Jayne C.
Sliuta E. N.
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