[meteorite-list] Seafloor Data Point to Global Volcanism after Chicxulub Impact

[Sterling K. Webb]

Paul, List, 

The real mystery about Chicxulub 
is its SIZE for so recent a date. 
Or another way of putting it is to 
ask how an object that big could 
keep crossing the Earth's orbit for 
all those billions of years without 
deliverng us a good smack?

There's a theory that Chixcy is a 
by-product of the breakup of the 
large asteroid 298 Baptistina about 
160 million years ago, and Chixcy 
got tossed our way and managed 
to nail us in only 100 million years.
<https://www.nature.com/articles/nature06070>

That I can believe...

It's an interesting notion, and it 
models well. I quote it: "...lines of 
evidence, however, suggest that 
the impact flux from kilometre-
sized bodies increased by at least 
a factor of two over the long-term 
average during the past ∼100 Myr."

I see that the journal Nature 
wants you to buy the article, but 
you can download a PDF of the 
actual article for free from here:  
http://www.boulder.swri.edu/~bottke/Reprints/Bottke_2007_Nature_449_48_Baptistina_KT.pdf

Knowledge wants to be free, 
doesn't it?


Sterling Webb 
--------------------------------------------
-----Original Message-----
From: Meteorite-list [mailto:meteorite-list-bounces at meteoritecentral.com] On Behalf Of Paul via Meteorite-list
Sent: Wednesday, February 07, 2018 8:39 PM
To: Meteorite-list at meteoritecentral.com
Subject: [meteorite-list] Seafloor Data Point to Global Volcanism after Chicxulub Impact

The dinosaur-murdering asteroid maybe also triggered an underwater volcano meltdown. Why pick just one flavor of apocalypse? By Rachel Becker, The Verge,  Feb 7, 2018 https://www.theverge.com/2018/2/7/16988112/asteroid-chicxulub-mass-extinction-dinosaurs-underwater-volcanoes-magma

Seafloor data point to global volcanism after Chicxulub meteor strike, University of Oregon, February 7, 2018 https://www.eurekalert.org/pub_releases/2018-02/uoo-sdp020518.php
https://around.uoregon.edu/content/one-two-punch-may-have-helped-deck-dinosaurs

The paper is;

Joseph S. Byrnes and Leif Karlstrom, 2018, Anomalous K-Pg-aged seafloor attributed to impact-induced mid-ocean ridge magmatism Science Advances  07 Feb 2018:
Vol. 4, no. 2, eaao2994 DOI: 10.1126/sciadv.aao2994
http://advances.sciencemag.org/content/4/2/eaao2994

Yours,

Paul H.

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