News tagged with rock

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Taking X-rays of CO2

As CO2 levels in the Earth's atmosphere top 400 parts per million, options such as storing the greenhouse gas in porous sandstone rock formations found in abundance on the sea floor are of increasing interest. ...

May 14, 2013 3 / 5 (4) 0

Graphite lubricates fault zones

Graphite is known to be a low-friction material, and rocks rich in graphite are often found in fault zones. Oohashi et al. conducted laboratory studies to determine how much graphite is needed to reduce the frictional strength ...

May 07, 2013 5 / 5 (1) 0

Iron in primeval seas rusted by bacteria

(Phys.org) —Researchers from the University of Tübingen have been able to show for the first time how microorganisms contributed to the formation of the world's biggest iron ore deposits. The biggest known ...

Apr 25, 2013 3.9 / 5 (8) 2 | with audio podcast