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The age of the Venusian surface - Estimates using terrestrial crater dataIt is hypothesized that the age of the Venusian northern hemisphere surface studied thus far could be as great as the average age of the earth's crust (450 Myr). This possibility arises because of the uncertainty of the role of active and inactive cometary nuclei in the crateral history of the earth. If the observed Venusian surface were 1 Byr old, then there would be traces of the impacts of a half dozen or more large cometary nuclei which penetrated the atmosphere and formed craters over 100 km in diameter.
Document ID
19870063862
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Schaber, G. G.
(Geological Survey Flagstaff, AZ, United States)
Shoemaker, E. N.
(Geological Survey Flagstaff, AZ, United States)
Kozak, R. C.
(U.S. Geological Survey, Flagstaff, AZ)
Date Acquired
August 13, 2013
Publication Date
June 1, 1987
Publication Information
Publication: Astronomicheskii Vestnik
Volume: 21
ISSN: 0320-930X
Subject Category
Lunar And Planetary Exploration
Accession Number
87A51136
Funding Number(s)
CONTRACT_GRANT: NASA ORDER W-15814
CONTRACT_GRANT: NASA ORDER WO-8777
Distribution Limits
Public
Copyright
Other

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