A online science mall at sciencemall-usa.com is a geek gift store for the adult science enthusiast, science educator, and science researcher. Our mission is to provide science gifts, science educational products, meteorites, necklace, pendant, earrings, and fulgurite lightning sand jewelry. We also sell school geology rock and mineral specimens, rare mineral matrix specimens, pallasites, tektites, Libyan Desert Glass, fulgurite lightning sand, Lichtenberg figures, Titanic coal, school rock collections, manganese nodules, elements of the periodic table, fossils and legal historical artifacts. Rare earth rock specimens such as ancient life stromatolites (earth's earliest life), shatter cones, banded iron formation, Greenstone belt BIF banded iron formation, KT/boundary, K-Pg boundary, radioactive minerals, science art posters, prints, curio desk displays, science jewelry pendant necklace earrings, hand crafted artisan jewelry for KennedyCoJewelry, are also our specialty.
Stevns Klint K-Pg Boundary Large
Stevns Klint K-Pg Boundary for Sale Large
The famous K-Pg Boundary is scattered throughout the world. This boundary contains a higher concentration of iridium than terrestrial materials. High amounts of iridium are considered to be the "signature" for asteroidal impact, and is especially linked to the time of the demise of the age of dinosaurs. The Stevns-Klint in Denmark has a thin clay layer called the Fish Clay, which is between the Maastrichtian chalk and Danian Cerithium Limestone, and marks the Maastrichtian-Danian interval. The background iridium level at the Stevns-Klint is as high as 160pbb. Gubbio has concentrations of 9 ppb, and Spain, as high as 450 pbb. The amount of ppb's of iridium in various K-Pg boundaries around the world vary. The original impact crater’s origin is Chicxulub, off the Yucatan peninsula. Authenticity Jensan Scientifics.
Ships with information, Tag, Certificate of Authenticity.
Collected by a geological professional, circa 2004.
Size: 60mm W X 50mm H X 30mm D
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