What acid rain do you refer to? This is an impactor, not a volcanic eruption. Acid rain would have to be supplied with large quantities of nitrous and sulfuric compounds in order to cause any damage. So far as I know, no significant (if any) acid spikes are noted from any deep ice corings for any recent impact event (last 30,000 yrs) so this is not a reason for lack of dinosaur (note that I have never mentioned any other type of fossil bone) fossils close to the K-T Boundary. Mark ----- Original Message ----- From: E.P. Grondine <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, January 16, 2003 12:50 PM Subject: Re: [meteorite-list] Dinosaurs Experienced Climate Changes Before K-T Collision
> The bones would not have survived the acid rain long > enough to be fossilized. Same goes for bones in the > process of fossilization. > > ep > > > --- [EMAIL PROTECTED] wrote: > > Hi Ron and list > > > > The fact is that dinosaur fossils are not found at > > the k-T boundary. One has > > to go 9-10 ft at best, below the boundary to find > > dinosaur bones in any of > > the beds that contain dinosaur fossils. This > > represents a substantial period > > of time prior to the impact layer. This is why it is > > argued against. No one > > has yet to find dinosaur bones at or immediately > > below the boundary. > > Mark > > ----- Original Message ----- > > From: Ron Baalke <[EMAIL PROTECTED]> > > To: Meteorite Mailing List > > <[EMAIL PROTECTED]> > > Sent: Wednesday, January 15, 2003 8:41 AM > > Subject: Re: [meteorite-list] Dinosaurs Experienced > > Climate Changes Before > > K-T Collision > > > > > > > > > > > > I have read many of the popular theories on the > > extinction events argued > > in > > > > this message, and to be frank, the fact remains > > that dinosaurs, in > > general, > > > > were on the decline. > > > > > > The dinosaurs may have well been on gradual > > decline prior to the impact, > > but > > > even if that is the case, that does not contradict > > their abrupt > > > disappearance at the time of impact. > > > > > > > As far as an impacter causing the extinction. > > I'm > > > > skeptical, for then, how do the mammals, > > marsupials, and birds, all > > > > non-burrowing, survive a "world affecting" > > impact. > > > > > > I don't find it strange at all that the large > > animal species at the top > > > of the food chain (ie: dinosaurs) were the most > > adversely affected by the > > impact. > > > The smaller species or the more mobile (mammals, > > birds, reptiles, etc.) > > had a > > > better chance of survival in the aftermath. A > > large number of the smaller > > animals > > > did go extinct as well at the time of the impact, > > but some were able to > > survive. > > > > > > Ron Baalke > > > > > > ______________________________________________ > > > Meteorite-list mailing list > > > [EMAIL PROTECTED] > > > > > > http://www.pairlist.net/mailman/listinfo/meteorite-list > > > > > > > > > > > ______________________________________________ > > Meteorite-list mailing list > > [EMAIL PROTECTED] > > > http://www.pairlist.net/mailman/listinfo/meteorite-list > > > __________________________________________________ > Do you Yahoo!? > Yahoo! Mail Plus - Powerful. Affordable. Sign up now. > http://mailplus.yahoo.com > > ______________________________________________ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://www.pairlist.net/mailman/listinfo/meteorite-list > ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
