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Additional
mantle (geology)
English Wikipedia - The Free Encyclopedia
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Mantle (geology)
The
mantle
is a layer inside a
terrestrial planet
and some other
rocky
planetary bodies
. For a mantle to form, the planetary body must be large enough to have undergone the process of
planetary differentiation
by
density
. The mantle lies between the
core
below and the
crust
above. The terrestrial planets (
Earth
,
Venus
,
Mars
and
Mercury
), the
Moon
, two of
Jupiter
's
moon
s (
Io
and
Europa
) and the
asteroid
Vesta
each have a mantle made of
silicate
rock. Interpretation of spacecraft data suggests that at least two other moons of Jupiter (
Ganymede
and
Callisto
), as well as
Titan
and
Triton
each have a mantle made of
ice
or other solid volatile substances.
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