GEOLOGY: K-T boundary Close-up of the K-T boundary claystone layer at the Sussex locality, Wyoming, USA. At bottom of the image is the mudstone of the Lance Formation (Cretaceous)
Wall Art and Photo Gifts from Ardea
GEOLOGY: K-T boundary Close-up of the K-T boundary claystone layer at the Sussex locality, Wyoming, USA. At bottom of the image is the mudstone of the Lance Formation (Cretaceous)
FG-ea-732
GEOLOGY: K-T boundary - Close-up of the K-T boundary claystone layer at the Sussex locality, Wyoming, USA
At bottom of the image is the mudstone of the Lance Formation (Cretaceous). On top is a coal bed of the Tullock Member of the Fort Union Formation (Tertiary). The K-T boundary layer is the gray to white kaolinitic claystone, less than 2 cm thick. On top of it is a darker, laminated layer a few millimeters thick, containing sand grains, many of them showing multiple sets of parallel fractures ("shocked quartz") under the microscope. Iridium can be detected in the claystone layer and in the carbonaceous layer immediately above it. (Reference: USGS)
Francois Gohier
Media ID 8132193
© Ardea - All Rights Reserved
Claystone Coal Cretaceous Digs Equipment Excavation Excavations Extinction Field Study K T Boundary Kt Boundary Layers Mudstone Palaeontology Paleontology Prehistoric Quartz Rocks Scientific Strata Tertiary Tools
MADE IN THE UK
Safe Shipping with 30 Day Money Back Guarantee
FREE PERSONALISATION*
We are proud to offer a range of customisation features including Personalised Captions, Color Filters and Picture Zoom Tools
SECURE PAYMENTS
We happily accept a wide range of payment options so you can pay for the things you need in the way that is most convenient for you
* Options may vary by product and licensing agreement. Zoomed Pictures can be adjusted in the Basket.