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| Scientists Solve Mystery of Moving |
| Scientists Solve Mystery of Moving Death Valley Rocks
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| UNITED STATES OF AMERICA
, 29-August-2014
9:9:19 AM |
| A solution to the longstanding mystery of why rocks move erratically across an isolated patch of California's Death Valley finally emerged on Thursday, when researchers published a study showing the driving force was sheets of wind-driven ice.
Trails from the movement of the rocks, which show them changing direction suddenly in their movement across the so-called Racetrack Playa, have long befuddled scientists and the general public. People wondered: How were the rocks moved?
Paleobiologist Richard Norris of the Scripps Institution of Oceanography, who led the study, saw the rare phenomenon first-hand last December while standing with his cousin, engineer James Norris, at the spot.
They published their findings on Thursday in the journal PLOS One, showing that even though the stones can sit for a decade or more without moving, on certain occasions they go on a slow trip that results from an unusual combination of ice and wind in an area normally known for scorching hot temperatures.
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