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Recent volcanic activity on Venus - Evidence from radiothermal emissivity measurementsRadiothermal emissivity measurements are analyzed in order to study large volcanic constructs on Venus and to correlate details of the reflectivity/emissivity patterns with geological landforms and stratigraphy visible in corresponding SAR images. There appears to be a correlation between locations on Venus where high emissivity at high altitudes and low emissivity at low altitudes are observed. These phenomena are attributed here to relatively recent volcanic activity: the former to summit eruptions that have not had time to weather to the low-emissivity state, the latter to continuing emission of volcanic gases from neighboring small plains volcanoes. The pattern of reflectivity and emissivity on Maat Mons is examined in the light of these findings. It is concluded that Maat Mons has undergone the most recent episode of volcanic activity of all the volcanoes studied here.
Document ID
19930049255
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Robinson, Cordula A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wood, John A.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Date Acquired
August 16, 2013
Publication Date
March 1, 1993
Publication Information
Publication: Icarus
Volume: 102
Issue: 1
ISSN: 0019-1035
Subject Category
Lunar And Planetary Exploration
Accession Number
93A33252
Funding Number(s)
CONTRACT_GRANT: JPL-958593
Distribution Limits
Public
Copyright
Other

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