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. Author manuscript; available in PMC: 2020 Oct 30.
Published in final edited form as: Icarus. 2020 Mar 1;338:113466. doi: 10.1016/j.icarus.2019.113466

Table 2.

Model parameters for a five-layer Europa.

Thickness
(km)
Density(kg/
m3)
Shear modulus
(Pa)
Viscosity
(Pa s)
Iron core 391 8000 6.5 × 1011 1 × 1021
Silicate mantle 1044.8 3500 6.5 × 1010 1 × 1020
Ocean 100 1000 Negligible Negligible
Ductile ice 20 999 3.49 × 109 1 × 1014
Brittle ice 5 998 3.49 × 109 1 × 1021