"Ralph Nesbitt" wrote in message igy.com...
"Professor Fate" wrote in message
om...
Thomas Lee Elifritz wrote in message
...
February 28, 2004


http://marsrovers.jpl.nasa.gov/galle...8P2572L7M1.JPG

Choose your hypotheses :

Chemical / Biological

Inorganic / Organic

Spherules / Gemmules

Air / Water

Thomas Lee Elifritz
http://elifritz.members.atlantic.net


How about bits of molten metal from a comet, broken up in the
atmosphere, slowly cooled as they sink in a low gravity sea?

In another thread the fact Mars meteorites found on earth were of volcanic
origin was emphasized. For this to occur a volcanic eruption capable of
ejecting material from the Marian surface at escape plus velocities would
have been very energetic.

The beginning of the eruption would have been the most energetic segment of
the event. Later portions of the eruption while energetic would have been
less so. Some of the material from such an energetic eruptive event would
have achieved Mars orbit.

The material in orbit would have sorted itself by size/mass achieving layers
of orbiting material at various heights based on size/mass. Over time the
orbit of this material would have decorated due atmospheric drag resulting
in a layers of material accumulating on the surface by size/mass.
Ralph Nesbitt

That sounds right. How about some sort of hypothesis regarding ejecta
from the Hellas event? I haven't seen much about it in science essays,
except that it rated about 1000 trillion tons of TNT; 100 miles
across, travelling at 36,000 mph. It may even have passed clean
through, emerging at Aetheria. Or maybe Aetheria is a bruise from the
Hellas impact, some sort of collapsium. Is that what pulled the plug
on the Martian Sea? One can even see the possibility of a polar shift
on the MOLA topographic globe.