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Re: Deccan Traps Vs. Asteroid



There is basically no evidence for a Shiva Crater. It is a pet theory utterly unaccepted by the geophysical and geological community at large.

New evidence shows the Deccan Traps erupting somewhat earlier than you mentioned, and indeed there is a signature of it in the upper Hell Creek.

The initial article listed is yet another of Gerta Keller's team's yearly contribution to "Deccan did it." That team publishes something every year at AGU and GSA, and have since 1980. The fact that the rest of the paleontological and geological community are unconvinced by their data should say something.

The weight of the evidence is that the Chicxulub crater really is the key contributor. The Deccan Traps *might* have produced a lesser version, in an alternate universe where the Chicxulub impactor missed the Earth. But in the real timeline, the impactor seems to be the primary causal agent.

On 2015-07-11 12:03, john-schneiderman@cox.net wrote:
The Deccan traps started around 66.25 mya, erupting in a series of
episodes that lasted for probably 30,000 years.
The K-Pg extinction event is connected with the Chicxulub Impact event
 66.236 ± 0.06 mya
Multiple impact theory includes the Shiva Crater about 66 mya may be
connected/or caused the Deccan Traps.
Then there is the draining of the intercontinental seas and rising
oreganies and altered climatic patterns.

My stand is that the life on this planet was doomed from all sides
around about 67-64 mya.


---- MICHAEL MURPHY <4mjmu@rogers.com> wrote:
Some  climate science people I know  are interested in this article :http://www.skepticalscience.com/So-what-did-in-the-dinosaurs.html pumping the Deccan Traps as the cause of the KT extinction.  Is there a consensus within the paleo community on this?  I thought the general view was Traps might have contributed but impact was coup de grâce.  Has it changed lately?
MJ MurphyBCL

--
Thomas R. Holtz, Jr.
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