Coragyps
Member (Idle past 765 days) Posts: 5553 From: Snyder, Texas, USA Joined: 11-12-2002
|
I'm away from home and largely away from a computer, so I don't have access to exactly where I posted this - somewhere in this forum in the last year, maybe... But I did a calculation that complements Meert's on the heat that the uranium in the Earth's crust gave off in decaying to lead. If it was in a year or so, it would have melted the crust. And we have decent evidence that there is plenty of radiogenic lead in the crust - zircon won't incorporate lead when it crystallizes, but has lead now. And it does allow uranium in its lattice to provide a source for that lead.
| This message is a reply to: | | | Message 1 by Dr Cresswell, posted 03-16-2005 5:47 AM | | Dr Cresswell has not replied |
| Replies to this message: | | | Message 15 by JonF, posted 03-18-2005 7:21 PM | | Coragyps has not replied |
|
™ Version 4.2