HI List This is exactly why the findings in New Mexico are a problem. In the past, when bones had been found at and above the K-T Boundary layer, they have, after much analysis, been found to be "reworked" meaning they were deposited there after being exposed and moved from somewhere else. These bones in New Mexico will most likely prove to be the same, and not deposited at the time of impact as claimed. I believe (I haven't recieved an answer from the author yet) that the fossils will be found to be mixed, dis-articulated and not an indication for extinction as claimed by the press. But this still needs to be checked in the paper itself as the abstract is far to vague and what the abstract covered was the chrono tags for the sandstone/K-T layer, not the fossils themselves. Mark
----- Original Message ----- From: E.P. Grondine <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, January 21, 2003 12:07 PM Subject: Re: [meteorite-list] Dinosaurs Experienced Climate Changes Before K-T Collision > Hi - > > the acid rain generated by the compounds from the > soils in the area where the largest chunk hit - > Chixulub (sp?) > > of course, the first thing which happened is that all > surface animals with lungs had them ruptured by the > blast wave - and then you had global fires, another > source of compounds for acid or caustic rains - > > fossilization requires an undisturbed "quiet: > environment - and its not likely that anything like > that existed anywhere on the Earth after this series > of comet fragments impacted - > > best wishes - > ep > > > > > > > > > > > > --- [EMAIL PROTECTED] wrote: > > 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. 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