Science
Earthquake forecasting clues unearthed in strange precariously balanced rocks – Science Daily
Naturally formed balancing boulders could be used to help scientists to forecast large earthquakes more precisely.
Precariously balanced rocks (PBRs) are formations found throughout the world where a slender boulder is balanced precariously on a pedestal boulder. They form as blocks preserved on cliffs, or when softer rocks erode and leave the harder rocks behind. They can also form when landslides or retreating glaciers deposit them in strange positions.Despite their delicate balancing act, many PBRs — like the Brimham Rocks in Yorkshire, or Chiricahua National Monument in Arizona — have survived earthqua…
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