Constraints on the subsurface structure of Europa

Details Constraints on the subsurface structure of Europa Constraints on the subsurface structure of Europa

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990icar...83..441g&link_type=abstract

Icarus (ISSN 0019-1035), vol. 83, Feb. 1990, p. 441-452.

Physics

41

Europa, Icy Satellites, Lithosphere, Satellite Surfaces, Surface Water, Galilean Satellites, Temperature Gradients, Jupiter, Satellites, Europa, Subsurface, Structure, Cracks, Lithosphere, Conduction, Thermal Gradients, Crust, Water, Differentiation, Thickness, Rotation, Formation, Origin, Stress, Ice, Shear, Fracturing, Mantle, Fractures, Photographs, Calculations, Interior, Silicates, Strength, Pressure, Temperature

Scientific paper

The wedge-shaped bands appearing near the anti-Jovian point on Europa are tension cracks which, after formation on an intact lithosphere, have facilitated the rotation of ice-lithosphere sections decoupled from the silicate interior. Such factors as fluid pressure, surface temperature, silicate impurities in the ice, and strain rates, would have affected the processes in question. A minimum degree of differentiation is required for Europa to mechanically decouple the rotated ice lithosphere from the underlying, predominantly silicate mantle.

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