News tagged with sandstone

NASA image: Reading the alphabet from space

NASA's Earth Observatory has tracked down images resembling all 26 letters of the English alphabet using only NASA satellite imagery and astronaut photography. In this image, the letter 'Y' is for yardangs, elongated landforms ...

dateJan 01, 2016 in Earth Sciences
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Discovering oil at micro level

( -- Getting trapped oil out of porous layers of sandstone and limestone is a tricky and costly operation for energy exploration companies the world over. But now, University of Alberta researchers have developed ...

dateNov 03, 2011 in Analytical Chemistry
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