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Re: The K-T boundary in Nanxiong
On Fri, Jun 14, 2002 at 06:17:41AM -0700, James R. Cunningham sent:
> John Bois wrote:
> > What range of megatonnage would leave no dino alive, yet leave mammals,
> > birds, crocs to carry on?
> Don't you mean what range of teratonnage?
It could be done as megatonnage-per-area, like the atmospheric thermal
bloom commetary impact scenarios that got tossed around before Chixiculb
got found (and which sometimes get included as part of the 'lots of
stuff re-enters' scenarios.)
firstname.lastname@example.org | Hige sceal þe heardra, heorte þe cenre,
| mod sceal þe mare þe ure maegen lytlað.
| -- Beorhtwold, "The Battle of Maldon"