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The CretaceousâTertiary extinction event, which occurred approximately 65.5 million years ago (Ma), was a large-scale mass extinction of animal and plant ...
en.wikipedia.org/wiki/Cretaceous%E2%80%93Tertiary_ext... - Similar
Chromium isotopic anomalies found in CretaceousâTertiary boundary ..... "Rapid eruption of the Deccan flood basalts at the Cretaceous/Tertiary boundary". ...
en.wikipedia.org/wiki/K%E2%80%93T_boundary - Similar
The Cretaceous-Tertiary extinctions resulted in the extinction of the dinosaurs and many other groups. As a result it opened environments and paved the way ...
www.es-designs.com/geol105/lectures/lecture25.html - Similar
Thanks to a new calibration of the versatile argon-argon dating technique, geochronologists have established a more precise date for the dinosaur die-off at ...
www.sciencedaily.com/releases/2008/04/080424140400.htm - Similar
The Cretaceous-Tertiary extinction event was a period of massive extinction of species, about 65.5 million years ago. It corresponds to the end of the ...
www.sciencedaily.com/articles/c/cretaceous-ter... - Similar
This extinction event marks a major boundary in Earth's history, the K-T or Cretaceous-Tertiary boundary, and the end of the Mesozoic Era. ...
www.ucmp.berkeley.edu/education/events/cowen1b.html - Similar
In this Cretaceous-Tertiary or K-T mass extinction (K is for Kreide, meaning chalk ... There are a lot of theories about why the K-T (Cretaceous-Tertiary) ...
www.enchantedlearning.com/subjects/dinosaurs/glossary... - Similar
Altered tektites produced by the Chicxulub impact as preserved at the Dogie Creek, Wyoming, Cretaceous-Tertiary boundary locality. ...
miac.uqac.ca/MIAC/chicxulub.htm - Similar
of the Cretaceous/Tertiary (K-T) boundary in the Badlands is founded on field ...... Late Cretaceous and Tertiary sediments of the Atlantic Coastal Plain ...
geopubs.wr.usgs.gov/open-file/of01-056/of01-056.pdf - Similar
Impact and extinction in remarkably complete Cretaceous-Tertiary boundary sections from Demerara Rise, tropical western North Atlantic. ...
www.sciencemag.org/cgi/content/abstract/208/4448/1095 - Similar
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