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Showing results for tags 'iridium'.
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Globally distributed iridium layer preserved within the Chicxulub impact structure
Oxytropidoceras posted a topic in Fossil NewsIridium in undersea crater confirms asteroid wiped out the dinosaurs Hamish Johnston, Physics World, February 24, 2021, https://physicsworld.com/a/iridium-in-undersea-crater-confirms-asteroid-wiped-out-the-dinosaurs/ Tha paper is: Goderis, S., Sato, H., Ferrière, L, et al. 2021, Globally distributed iridium layer preserved within the Chicxulub impact structure Science Advances 24 Feb 2021: Vol. 7, no. 9, eabe3647 https://advances.sciencemag.org/content/7/9/eabe3647 There are arguments that seismic waves from the Chicxulub imp
The Pinna Layer of Central New Jersey (USA)
frankh8147 posted a topic in Fossil Hunting TripsHello all! For those not familiar with the Pinna Layer, it is a very small layer representing a very short period of time (weeks to years) after the meteor impact that caused the great extinction of the Cretaceous period. A very thin layer at the bottom of it actually tests positive for Iridium. Last Summer, I was invited to finish off the last remaining outcrops and along with a very small group of other fossil hunters (including other members here), we finished off the last accessible layer - a project which ended just a few weeks ago. It was a group effort and due to