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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
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, email@example.com 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 <firstname.lastname@example.org> wrote:
Some climate science people I know are interested in this article
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?
Thomas R. Holtz, Jr.
Email: email@example.com Phone: 301-405-4084
Geology Office: Geology 4106
Scholars Office: Centreville 1216
Senior Lecturer, Vertebrate Paleontology
Dept. of Geology, University of Maryland
Faculty Director, Science & Global Change Program, College Park Scholars
Mailing Address: Thomas R. Holtz, Jr.
Department of Geology
Building 237, Room 1117
University of Maryland
College Park, MD 20742 USA