Re: KT Boundary Inquiry


<uraniumcommittee@xxxxxxxxx> wrote in message
news:1145667510.480336.15390@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

George wrote:


So, it is not up-to-date information. It is also not an unbiased
view
of
the current thinking.

Seems pretty thorough to me. Can you point out significant weak points
in his book?

The weakest link in the book is that it is ten years old.

Age in itself does not mean squat. The research done was extraordinary.

And based on data, some of which is now in question.

As such, there
has since been tons of data collected and interpreted, a lot of which
questions whether an impact actually caused the dinosaurs to go extinct.
The date of the Yucatan impacter has been brought into question - it may
be
older than the K-T boundary event. That and the fact that the famous
irridium layer has been found right smack in the middle of the Deccan
traps, a fact which not only helps date the traps, but indicates that
the
volcanism associated with them was ongoing before during and after the
K-T
boundary event. In other words, a lot of data has been collected that
dispute the impact theory of the demise of the dinosaurs, and that
supports
the volcanism associated with the Deccan traps and the resulting climate
change as a possible major cause. These are my major beefs with the
book.
I'm sure there are others I've overlooked.

Have you read it? He talks about those issues and answers them.

Yes I have. It is not possible that he answered those questions, since the
idea that gas clathrates were liberated during repeated global warming
events caused by the volcanic eruptions of the Siberian traps, causing
cycles of further global warming was first presented in 2002 by Gerry
Dickens, long after the book was published. The fact that the irridium
layer has been found in the middle layers of the Deccan traps is also a new
finding.

George


.

Quantcast