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Detailed Reference Information |
Williams, K.K. and Greeley, R. (1998). Estimates of ice thickness in the Conamara Chaos Region of Europa. Geophysical Research Letters 25: doi: 10.1029/1998GL900144. issn: 0094-8276. |
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Europa, the second Galilean moon outward from Jupiter, is similar in size to Earth's moon but has an outer water-ice layer on the order of 100 km thick. Images acquired by the Galileo spacecraft reveal domical features and iceberg-like blocks in some areas that suggest the ice was regionally thin at the time the features formed. This paper applies buoyancy and flexural models to some of the features to estimate ice thickness. Assuming that the ice blocks were floating in a liquid sublayer, the buoyancy model suggests an ice layer 0.2--3.0 km thick. Also, the flexural models suggest that only the upper 0.1--0.5 km of that ice layer responded elastically to stresses, acting as an elastic lithosphere. ¿ 1998 American Geophysical Union |
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Abstract |
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Keywords
Planetology, Solid Surface Planets, Surface materials and properties, Planetology, Comets and Small Bodies, Ice, Planetology, Solar System Objects, Jovian satellites |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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