Posted on 02/09/2003 4:22:57 PM PST by CalConservative
Diamonds Tell Story Of Earth’s Beginning
The Telegraph (UK) | 8-22-2007 | Roger Highfield
Posted on 08/22/2007 9:48:58 PM EDT by blam
http://www.freerepublic.com/focus/f-news/1885157/posts
|
|||
Gods |
Note: this topic is from February 9, 2003 . |
||
· Discover · Nat Geographic · Texas AM Anthro News · Yahoo Anthro & Archaeo · Google · · The Archaeology Channel · Excerpt, or Link only? · cgk's list of ping lists · |
It all boils down to what was the Sun doing 4.5 billion years ago. My guess is that the early Sun was still accumulating nebulaic gasses(even though it had just began it’s fusion reaction). Therefore it is possible that the early Earth had a weaker Star in the sky.
In addition, the nebulaic gases and particulates would still be in high concentrations, possibly high enough that much of the Sun’s solar radiation would have been absorbed before it reached Earth.
In addition Earth probably didn’t have as strong of a magnetic field to protect it from the Sun.
All this combined means the early Earth was not hot. It was likely very, very cold. Maybe even too cold for liquid water.
Whoops! Earths Oldest Diamonds Actually Polishing Grit
LiveScience | 1/3/2014 | Becky Oskin
Posted on 1/3/2014 5:26:38 PM by aimhigh
https://www.freerepublic.com/focus/news/3108059/posts
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.