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Princeton Paleontologist Produces Evidence For New Theory On Dinosaur Extinction
On Fri, 26 Sep 2003 13:21:21 GMT, "James F. Cornwall"
wrote: If she found undisturbed strata directly above the fallout layer, what is your interpretation? Please note, she didn't make a conclusion, she only stated that it *suggested* that "no tsunami waves or other major disturbances" occurred. It is her interpretation of the data, which she, as author of the report, is entitled to do. If you think she is wrong, by all means, go out there and collect the data, and prove her wrong. That's what science is all about, is it not? The way I look at it, the tsunamis generated by the impact could easily have washed their way around the world and done their work of disturbing the sediments *before* the fallout made it back down into the atmosphere and thru the water down to the seafloor. Plus, you're not going to have sediments disturbed in deep enough water (no, I don't know what the exact depth would be) even by a really *BIG* tsunami. Hence no disturbances in the sediments above or below the fallout layer. There are models that suggest the Chicxulub impact would have generated a tsunami wave 100 to 150 meter high, having a wavelength of over 200 km, and traveling at more than 700 km/hour. Such a wave would have "feel" the bottom eroding and moving sediments at any ocean depths shallower than 10 km. And yet, K-T tsunami deposits have been interpreted only from the Gulf of Mexico. Some say it might have something to do with the physiography of the impact area at the K-T time: impact on a shallow shelf rimmed by a reef barrier, and then, the Gulf itself, bounded by land, shallow carbonate platforms, and volcanic island arcs. Regards, Mircea |
#12
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Princeton Paleontologist Produces Evidence For New Theory OnDinosaur Extinction
Mircea wrote:
On Fri, 26 Sep 2003 13:21:21 GMT, "James F. Cornwall" wrote: If she found undisturbed strata directly above the fallout layer, what is your interpretation? Please note, she didn't make a conclusion, she only stated that it *suggested* that "no tsunami waves or other major disturbances" occurred. It is her interpretation of the data, which she, as author of the report, is entitled to do. If you think she is wrong, by all means, go out there and collect the data, and prove her wrong. That's what science is all about, is it not? The way I look at it, the tsunamis generated by the impact could easily have washed their way around the world and done their work of disturbing the sediments *before* the fallout made it back down into the atmosphere and thru the water down to the seafloor. Plus, you're not going to have sediments disturbed in deep enough water (no, I don't know what the exact depth would be) even by a really *BIG* tsunami. Hence no disturbances in the sediments above or below the fallout layer. There are models that suggest the Chicxulub impact would have generated a tsunami wave 100 to 150 meter high, having a wavelength of over 200 km, and traveling at more than 700 km/hour. Such a wave would have "feel" the bottom eroding and moving sediments at any ocean depths shallower than 10 km. And yet, K-T tsunami deposits have been interpreted only from the Gulf of Mexico. Some say it might have something to do with the physiography of the impact area at the K-T time: impact on a shallow shelf rimmed by a reef barrier, and then, the Gulf itself, bounded by land, shallow carbonate platforms, and volcanic island arcs. Regards, Mircea No arguments there, but again we have "... suggests that ..." which leaves a lot of room for discussion/argument/further work. Which was my point in this discussion. :-) Jim |
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Princeton Paleontologist Produces Evidence For New Theory On...
Can we disagree without calling each other names?..I'm not a scientist -
but it makes sense that the dinosaurs did not disappear because of one Asteroid.. *~Lainie~The StarGazer~* http://community.webtv.net/LAINIE121/doc |
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Princeton Paleontologist Produces Evidence For New Theory On Dinosaur Extinction
On Sat, 27 Sep 2003 10:23:00 -0500, Mircea wrote:
In detail, the K-T boundary does not show a perfect picture of K strata overlain by *one* Ir-, Pd-, and spherule-rich impact layer, which, in turn, underlies T strata. More often than not, the boundary includes several layers with impact- and/or ejecta-related signatures, whose age is not always well constrained. -snip Regards, Mircea Which explains why most geopubs involving the K/T boundary refer to it as an unconfomity. At least the pubs I used to have. TM -- Toadmonkey: "Now now. Brain popping and world crashing may be hazardous to ones perception of reality. Very dangerous business that can lead to madness or something worse for some, truth." Remove "3+4" from addy before replying -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
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are dinosaurs extinct? really?
"gravity jones" wrote in message ... a bee or a flea the size of an elephant or twice the size of an elephant is not going to jump or fly like a bea or a flea? Correct. Not only could they not jump or fly - but they wouldn't be able to stand or move at all. Nor could they respire. rember those slow motion stop animation dinos? well in some ways that does seem to make some sense. How long is a moment? Meaningless. I know for a fact that a moment on jupiter is quite a bit different than an earth moment. Just clock some of the observed winds on the planet's surface verses the slower motion cloulds on earth. I mean slow motion. the maxium wind clocked on earth is at most 300 mph verses 120000 mph on jupiter. You made that 120,000 mph figure up. Does Jupiter even have miles? How could it not? Miles are an arbitrary measure of length. That measure would apply anywhere. how and why would earth hours apply on jupiter? Why would't they? I know ive got apples and oranges here in my argument. I dont want to be clear becasue I do not suggest to know what happened to the dinosaurs. I get the sense that OJ's dream team might have done a better job defending a few dinosaur extinction theories than the big Orange juice himself. They weren't remotely interested in the truth. That makes me wonder about the science involved. If lawyers profess to understand what thier expert witnesses are saying its suspect. maybe we should bring the whole case of dinausaur extinctions to court. What would that accomplish? There The Thermodynamic Cause of Gravity: Site Below is due for update and removal of mistakes: http://www.webspawner.com/users/gravity/index.html Your site has too many errors to bother to correct. |
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