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Constraints on the Opening Rate of Bands on EuropaThe opening rates of two bands on Europa, inferred to be sites of spreading of the icy lithosphere, are constrained based on a mid-ocean ridge analog model. Estimates of brittle-ductile transition depth combined with a conductive cooling model limit active band lifetimes to 0.24 - 35 Myr and strain rates of 8.1 x 10(exp -13) - 8.2 x 10(exp -15)/s. These values suggest tensile strengths for ice on Europa of 0.46 - 2.3 MPa, consistent with nonsynchronous rotation as the dominant driving mechanism for band opening.
Document ID
20040055364
Document Type
Conference Paper
Authors
Stempel, M. M. (Colorado Univ. Boulder, CO, United States)
Barr, A. C. (Colorado Univ. Boulder, CO, United States)
Pappalardo, R. T. (Colorado Univ. Boulder, CO, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2004
Publication Information
Publication: Workshop on Europa's Icy Shell: Past, Present, and Future
Subject Category
Lunar and Planetary Science and Exploration
Funding Number(s)
CONTRACT_GRANT: NAG5-11616
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle20040055312Analytic PrimaryWorkshop on Europa's Icy Shell: Past, Present, and Future
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