Sentences with phrase «molten lava drained»

Huge tubes formed approximately 190,000 years ago; molten lava drained out under a thick cooler crust, leaving a series of long, hollow tubes.

Not exact matches

Lava tubes are created when an outer stream of molten rock solidifies and the lava inside drains aLava tubes are created when an outer stream of molten rock solidifies and the lava inside drains alava inside drains away.
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