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Geotechnical Egineering News tagged with [sandstone]

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Ennedi Massif: Africa's remote geological wonder
BBC NEWS   16 May 2023   Africa   Chad  
My eyes lifted up towards a rocky ledge carved into a sandstone cliff in the heart of Chad's Ennedi Massif. I saw a face, then, as my eyes adjusted to the gloam, another appeared. Painted in bright ochre and white, men were riding camels and giant cows ...
The Wave Of Arizona Is A 190-Million-Year-Old Geological Masterpiece
IFLScience   22 March 2023   USA   Arizona  
Feast your eyes while you can because access to the Wave is very limited. Image credit: Pung/Shutterstock.com
The Wave can be found in the Coyote Buttes North area of the Colorado Plateau just along the border between Utah and Arizona. It’s made of sandstone, which is relatively prone to erosion from water and wind over lengthy periods of time. Sandstone ...
Climate change: A small green rock's warning about our future
BBC NEWS   28 April 2021   Antarctica  
An extraordinary journey: The atomic make-up of small crystals in the rock reveal its origin
It's an unassuming rock, greenish in colour, and just over 4cm in its longest dimension. And yet this little piece of sandstone holds important clues to all our futures.It was recovered from muds in the deep ocean, far off the coast of modern-day ...