Cooling lava One should always beware when walking over a freshly erupted lava field, as one never k
Cooling lava One should always beware when walking over a freshly erupted lava field, as one never knows how deep and solid the crust above the molten rock beneath actually is. Vulcanologists use metal probes, and tread with caution, though its not unheard of to break through the crust. At that point, one needs to hope for solid boots and quick reactions. Loz Image credit: Tom Pfeiffer -- source link
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