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To
return to one of the premises of this website, that the evidence
of former ice at Mars' equator is not due to shifts in obliquity,
but rather to former plate-tectonic motion, let's compare the new
snow evidence and the earlier mineral evidence of the newly defined
Martian geological past.
The region in
which Phoenix observed the snow is inside the present Martian arctic
circle ( I say 'present' because I'm working on the basis that the
crust did move in the past, in which case different areas of the
crust would have fallen within the arctic circle during different
periods ). If the regions nearer the equator that show evidence
of water activity and ice deposits from the previous eras, the Theikian
and the Phyllocian, are mapped onto my proposed pattern of crustal
movement between Earth and Mars, they fall within the same general
arctic region in which snow has recently been observed. This suggests
that the equatorial ice was neither carried and formed in-situ,
nor lay closer to the pole because of a sharper axial tilt towards
the sun, but is in fact, due to those areas of the crust having
previously lain within the polar region due to plate-tectonic movement.
TO BE
CONTINUED
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