The sliding rocks of Racetrack Playa.

These rocks can be found on the floor of the playa with long trails behind them. Somehow these rocks slide across the playa, cutting a furrow in the sediment as they move. Some of these rocks weigh several hundred pounds. That makes the question: "How do they move?" a very challenging one.

Includes some nice photos at the end. (via clusterflock)

This entry was published on November 30, 2007 at 04:50 pm.

Tags for this entry:  geology 

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