Arctic Ocean was balmy 70 mln years ago
"Roger Smith" wrote in message
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"Brendan DJ Murphy" wrote in message
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18:00 15Dec2004 RTRS-Arctic Ocean was balmy 70 mln years ago -study
(snip)
My comment....
Ever heard of precession? Surely the wobbling of the earth's axis would
affect the angle of theEarth's tilt pointing perhaps more directly
towards
the sun.
Brendan
Brendan
By precession do you mean the normal definition of the term (the 26,000
year rotation of the direction of the earth's axis around the normal to
the orbital plane, which would cause no climatic change), or do you mean
to refer either to a change in the inclination of the earth's axis to the
orbital plane (which would effect seasonal weather extremes at polar
latitudes) or to a movement of the north and south poles relative to the
surface of the earth? I am not sure how the latter could be correlated to
continental drift, or whether it would be a slower or faster movement.
Of course the oceans might have been balmy for quite different reasons.
Regards, Roger
Yes
:-p
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