SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Pastimes : Ask John Galt...
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: James R. Barrett who wrote (2555)4/10/1997 7:43:00 PM
From: Ignacio Mosqueira   of 4006
 
James water was a common element in the solar nebula from which
the Earth accreted. But there is a very important wrinkle
here. So are many other elements which are not presently
found on the Earth's atmosphere such as noble gases. So the
question is did the Earth's atmosphere collect gases
from the solar nebula during its accretion. If this
was so we would expect the atmosphere to be of solar nebula composition and this is not what we see. We can infer fairly
well what must have been present in the nebula from many
lines of evidence including theory, observations of other
stars, and composition of the outer planets. So this
conundrum is not easy to get around except that the atmosphere
was not collected but rather exuded from the rock after
formation spewed by volcanoes and outgassing mechanisms of
various sorts. Noble gases are not reactive so they
were not trapped in the rock.

But you should remember that Mars also had liquid water at
one point. Needless to say this is not an easy question but
a very important one.

Ignacio
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2026 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News