View Full Version : K-T impact not in Yucatan??

2004-Mar-02, 05:47 PM
Some scientists are thinking the Yucatan asteroid just happened to hit & weaken the dinosaurs about 300,000 years before the one that really killed them hit, perhaps in the Indian Ocean.


Ah, what the heck, lets throw in a poll while we're at it. :lol:

2004-Mar-02, 06:06 PM
Everyone knows it was the biblical flood that killed off the dinosaurs. Before that, man and dinosaurs shared the same territory. Come on, haven't you ever seent he flintstones?

2004-Mar-02, 06:12 PM
There's no "combination of more then one impact/disaster" category. :-?
Thanks for linking the article tho, I heard this on the radio last night but couldn't find the article that went along with it!

2004-Mar-03, 12:27 AM
I am sure I speak for all the Gary Larson fans on the board, when I ask "Where's the option for smoking?" :)

2004-Mar-03, 01:23 AM
I am sure I speak for all the Gary Larson fans on the board, when I ask "Where's the option for smoking?" :)

Dammit! I'm a Gary Larson fan! And a smoker! What was I thinking? #-o

2004-Mar-03, 02:21 AM
The lead investigator Gerta Keller is a long-time foe of the impact hypothesis. I wish some else had come up with these results, but ... who else but an opponent would pursue it?

2004-Mar-03, 05:41 AM
I always felt that the evidence put forward for an Icelandic impact was compelling because the rocks there are the right age, an impact on a mid ocanic ridge is where the crust is thinnest and an impact can most easily cause penetration of the crust to form a large volcanic cauldera as iceland is, the gaseous discharge of a large volcanic cauldera is much greater than from a simple impact in thick crust from a meteor of the same size, and the rocks of Iceland are the only igneous rocks on Earth that have the same concentration of iridium as the sedimentary rocks of the K-T boundary layer suggesting they formed at the same time and were exposed to the same meteor impact material.

2004-Mar-03, 09:58 AM
I think that the dating of the Chicxulub impact to 300,000 years before the KT boundary is the suspect conclusion. How did such a large impact not produce any Iridium and yet a mystery impact somehow did? It seems to me unlikely that the Chicxulub impact to be dated so accurately, 65 million years ago. [-(