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Volcanism and resurfacing on Venus at the full resolution of Magellan SAR data

Grindrod, PM; Stofan, ER; Guest, JE; (2010) Volcanism and resurfacing on Venus at the full resolution of Magellan SAR data. Geophysical Research Letters , 37 , Article L15201. 10.1029/2010GL043424. Green open access

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Abstract

We examine the importance of localized volcanism in resurfacing on Venus by analyzing the results of geologic mapping of a 12 degrees x 12 degrees area at the full resolution of Magellan SAR data. Resurfacing due to corona-, ridge-, and small volcano-related volcanism accounts for 27%, 6%, and 10% respectively of the mapped area. Mapping at the resolution of Magellan data, rather than a regional scale, gives corona-related flow unit areas that can differ individually by almost an order of magnitude, with a total increase of 28%, and more than three times as many identifiable units. A total of 2919 small volcanoes or vents less than 10 km in diameter were identified in the F-Map, with a mean diameter of 1.59 (s.d. = 1.08) km and densities of up to 36 small volcanoes per 50 km(2). Taken together, coronae, ridge eruptions, and small volcanoes probably make a significant contribution to resurfacing on Venus. Citation: Grindrod, P. M., E. R. Stofan, and J. E. Guest (2010), Volcanism and resurfacing on Venus at the full resolution of Magellan SAR data, Geophys. Res. Lett., 37, L15201, doi:10.1029/2010GL043424.

Type: Article
Title: Volcanism and resurfacing on Venus at the full resolution of Magellan SAR data
Open access status: An open access version is available from UCL Discovery
DOI: 10.1029/2010GL043424
Publisher version: http://dx.doi.org/10.1029/2010GL043424
Language: English
Additional information: Copyright 2010 by the American Geophysical Union
Keywords: Global distribution, Tectonics, Emplacement, Coronae, Rates, Flow, Etna
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/121600
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