Monday, February 29, 2016

Pele’s Hair

Pele’s Hair Scientists say ‘Pele's hair’ is “volcanic glass that has been stretched into thin strands by the physical pulling apart of molten material during eruptions. Most commonly it forms during fire fountain activity.” A single strand, with a diameter of less than 0.5 mm, may be as long as 2 m. The strands are formed by the stretching or blowing-out of molten basaltic glass from lava, usually from lava fountains, lava cascades, and vigorous lava flows (for example, as pāhoehoe lava plunges over a small cliff and at the front of an ‘a‘a flow.)

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