The New York Times: Turning Carbon Dioxide Into Rock, and Burying It
HENGILL, Iceland — In a cramped work trailer not far from Iceland’s largest geothermal power plant, a researcher pored over a box of core samples — cylinders of rock that a drilling rig had pulled from deep underground just a few minutes before.
In a test that began in 2012, scientists had injected hundreds of tons of water and carbon dioxide gas 1,500 feet down into layers of porous basaltic rock, the product of ancient lava flows from the nearby Hengill volcano. Now the researcher, Sandra Snaebjornsdottir, a doctoral student at the University of Iceland, was looking for signs that the CO2 had combined with elements in the basalt and become calcite, a solid crystalline mineral. Read more on The New York Times webpage, by clikcing here.