Internal structur3

Internal structur3 - Internal structure Model of Europa's...

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Internal structure Model of Europa's interior showing a solid ice crust over a layer of liquid water or soft ice, a silicate mantle and a metallic core. It is believed that Europa has an outer layer of water around 100 km (62 mi) thick; some as frozen-ice upper crust, some as liquid ocean underneath the ice. Recent magnetic field data from the Galileo orbiter showed that Europa has an induced magnetic field through interaction with Jupiter's, which suggests the presence of a subsurface conductive layer. The layer is likely a salty liquid water ocean. The crust is estimated to have undergone a shift of 80°, nearly flipping over (see true polar wander ), which would be unlikely if the ice were solidly attached to the mantle. [27] Europa probably contains a metallic iron core. [28] Surface features Approximate natural color (left) and enhanced color (right) Galileo view of leading hemisphere Mosaic of Galileo images showing features indicative of internal geologic activity: lineae,
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This note was uploaded on 12/15/2011 for the course AST AST1002 taught by Professor Emilyhoward during the Fall '10 term at Broward College.

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Internal structur3 - Internal structure Model of Europa's...

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