Physics
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pggp.rept...24p&link_type=abstract
In NASA, Washington Repts. of Planetary Geol. and Geophys. Program, 1984 p 24-26 (SEE N85-23474 13-91)
Physics
Europa, Fracture Mechanics, Ice, Satellite Rotation, Structural Properties (Geology), Voyager 2 Spacecraft, Crack Propagation, Satellite Surfaces, Stresses, Tectonics
Scientific paper
Global lineaments on Europa were interpreted as fractures in an icy crust. A variety of lineament types were identified, which appear to form a systematic pattern on the surface. For a synchronously rotating body, the patterns of fractures observed could be produced by a combination of stresses due to orbital recession, orbital eccentricity, and internal contraction. However, it was recently suggested that the forced eccentricity of Europa's orbit may result in nonsynchronous rotation. The hypothesis that fractures in a thin icy crust may have formed in response to stresses resulting from nonsynchronous rotation is studied.
Helfenstein Paul
Parmentier Marc E.
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