[Rockhounds] Iridium in undersea crater confirms asteroid wiped out the dinosaurs

[Axel Emmermann]

Thank you Paul, that is a LOT of reading 😊

Axel

-----Oorspronkelijk bericht-----
Van: Rockhounds <rockhounds-bounces at rockhounds.drizzle.com> Namens Paul
Verzonden: donderdag 25 februari 2021 15:49
Aan: Rockhound List <rockhounds at rockhounds.drizzle.com>
Onderwerp: Re: [Rockhounds] Iridium in undersea crater confirms asteroid wiped out the dinosaurs

On Wednesday, February 24, 2021 3:02 PM, Axel wrote,

>Bryan,

> 

>both  events are not so far apart on the geological timescale.

>Most  likely both events conspired to the demise of the dinosaurs.

I agree. There are arguments that seismic waves from the

Chicxulub impact did a superfrack job on the Deccan volcanoes

and magnified their eruptions. Go see;

Richards, M.A., Alvarez, W., Self, S., Karlstrom, L., Renne, P.R.,

Manga, M., Sprain, C.J., Smit, J., Vanderkluysen, L. and Gibson,

S.A., 2015. Triggering of the largest Deccan eruptions by the impact.

Geological Society of America Bulletin, 127(11-12), pp.1507-1520.

http://eprints.esc.cam.ac.uk/3289/1/Gibson%20bul%20gsa.pdf

http://pages.uoregon.edu/leif/resources/papers/GSAB_2015_Richards.pdf

https://pubs.geoscienceworld.org/gsa/gsabulletin/article-abstract/127/1112/1507/126064

Some commentary on flood basalts and how they cause mass extinctions

Ernst, R.E. and Youbi, N., 2017. How Large Igneous Provinces

affect global climate, sometimes cause mass extinctions, and

represent natural markers in the geological record. Palaeogeography,

palaeoclimatology, palaeoecology, 478, pp.30-52.

Link, Ernst and Youbi (2017), at bottom of page at http://www.largeigneousprovinces.org/downloads

http://www.largeigneousprovinces.org/sites/default/files2/Ernst%20and%20Youbi%202017%20PPP.PDF

https://www.sciencedirect.com/science/article/pii/S0031018217302857


Yours,

Paul H.

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