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

[J Bryan Kramer]

I watched a lecture about the Washington flood basalts a week ago and was
interested to observe that the lecturer pinned the dinosaur extinction on
those volcanos with not one word about Chicxulub. I knew some geologist
were skeptical when the asteroid theory was announced by some physicists
but I'm surprised to see the resistance still exists this many years later.

BK

““There exists a law…inborn of our hearts…by natural intuition. … If our
lives are endangered by plots or violence or armed robbers or enemies, any
and every method of protecting ourselves is morally right.””
Cicero

J Bryan Krämer       North Florida, USA
photos at: http://pbase.com/photoburner


On Wed, Feb 24, 2021 at 4:25 PM Kreigh Tomaszewski <kreigh at gmail.com> wrote:

> Strong evidence that the dinosaurs were killed-off 66 million years ago by
> an asteroid hitting Earth has been found in Chicxulub crater under the Gulf
> of Mexico. An international team has measured an abundance of the rare
> element iridium in the crater and similarly high concentrations of the
> element are known to occur in sediments laid down at the time of the
> Cretaceous–Paleogene boundary (K–Pg) extinction event, which saw many
> species on Earth vanish.
>
> Measuring 200 km across, the Chicxulub crater is believed to have been
> created by an 11 km-wide asteroid crashing into Earth. The impact would
> have sent vast amounts of vaporized rock into the atmosphere, blocking out
> the Sun and creating a winter that could have lasted lasted several
> decades. The result, scientists believe, was the mass extinction of 75% of
> species on Earth including the non-flying dinosaurs.
>
>
> https://physicsworld.com/a/iridium-in-undersea-crater-confirms-asteroid-wiped-out-the-dinosaurs/
> _______________________________________________
> Rockhounds mailing list
> Subscription Services:
> http://rockhounds.drizzle.com/mailman/listinfo/rockhounds_rockhounds.drizzle.com
> List Usage Policy:
> http://Tomaszewski.net/Kreigh/Rockhounds/Rockhounds.shtml
>