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Styles of volcanism on Venus - New Arecibo high resolution radar dataArecibo high-resolution (1.5 to 2 km) radar data of Venus for the area extending from Beta Regio to western Eisila Regio provide strong evidence that the mountains in Beta and Eisila Regiones and plains in and adjacent to Guinevere Planitia are of volcanic origin. Recognized styles of volcanism include large volcanic edifices on the Beta and Eisila rises related to regional structural trends, plains with multiple source vents and a mottled appearance due to the ponding of volcanic flows, and plains with bright features surrounded by extensive quasi-circular radar-dark halos. The high density of volcanic vents in the plains suggests that heat loss by abundant and widely distributed plains volcanism may be more significant than previously recognized. The low density of impact craters greater than 15 km in diameter in this region compared to the average density for the higher northern latitudes suggests that the plains have a younger age.
Document ID
19900025643
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Campbell, Donald B.
(Cornell University Ithaca, NY, United States)
Head, James W.
(Cornell Univ. Ithaca, NY, United States)
Senske, David A.
(Brown University Providence, RI, United States)
Hine, Alice A.
(Cornell Univ. Ithaca, NY, United States)
Harmon, John K.
(Arecibo Observatory PR, United States)
Date Acquired
August 14, 2013
Publication Date
October 20, 1989
Publication Information
Publication: Science
Volume: 246
ISSN: 0036-8075
Subject Category
Lunar And Planetary Exploration
Accession Number
90A12698
Distribution Limits
Public
Copyright
Other

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