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Re: Water in the solar system - was Re: halite in Monahans

In a message dated 98-07-22 12:31:27 EDT, Jim Hurley writes:

 It is thought that in the presolar nebula, at about 5 AU, there would be
 a slush zone, where temperatures would be cool enough for water-ice to form.
 This could be a reason why Jupiter formed there.
 The asteroids in the far region of the belt are assumed to have once 
 contained quite a lot of water and from these we get the CI-type meteorites.
 There are some samples of asteroids out there that appear reddish or orange
 and we have no known samples of that type of rock - expected to have lots of
 Farther out in the solar system, water mixed with a little ammonia forms
 a melt at quite low temperatures and a little pressure. This can cause
 the water-based differentiation of the moons of Jupiter and Saturn.
 The process is interesting, at a pressure of 2-kbar water mixed with ammonia
 can melt in a satellite composed of mixed water-ice and rock. A thin zone
 underground where the water becomes liquid and the rock and mud settle
 The region starts to grow and widen. Eventually the surface ruptures - from a
 collision event or whatever, and all the water gushed out in a geyser. The
 sinks and mixes with the unmelted core. Then the process begins anew.
 all the rock settles to the core and the water-ice ammonia solution is at the


  WOW!  These is some of the most astonishing things I've ever read here!
You are saying that the most likely place to look for the water that deposited
the halite in Monahans is in the outer regions by the orbits of Jupiter and
Saturn.   This makes good sence to me,  as it would explain the complete lack
of similar meteoritic material hitting the earth,  as most of that comes from
the asteriod belt and the apollo asteriods.

Geoff Cintron

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