Friday Rock Blogging: Pele's Hair

i-f22d3f361b230b1e2580dd8b027016e4-peles-hair-insitu.jpg This one's in honor of the new activity at the peak of Kilauea. For pictures and updates, see the Hawaii Volcano Observatory homepage. For more geoblogospheric coverage, check out the posts at Magma Cum Laude and the roundup at Geology News.

i-269743546a1d55afee359c7bcaa4d093-peles-hair-loop.jpg To get Pele's hair, you need to throw around some lava. More precisely, you need your volcano to work like a cotton candy machine: take a bit of liquid rock, and spin it out until it looks like, well, hair. Or cotton candy (seriously, Internet, why do you not contain any magnified images of cotton candy for me to link to here?). Though these images aren't from the current eruption, the latest HVO press release reports that there was fresh Pele's hair on the Halema'uma'u (summit caldera) overlook on Monday.

Below the fold: you can see the streching-outing!

i-9b1f1db60ca9e58ecd4ea55ac57f1a95-peles-hair-stretch.jpg

More like this

Bárðarbunga is arguably the scariest of the 30 or so active volcanoes in Iceland. Extreme volcanoes don't always have extreme eruptions, but they are scary because they have the capability for extreme events, uniquely so. Bárðarbunga - under the ice cap at the top left - from Google maps It is…
Not long after Yellowstone Park was officially created, a small group of campers were killed by Nez Perce Indians on the run from US troops1. More recently, the last time I was in the area, a ranger was killed by a Grizzly Bear (so was his horse) on the edge of the park. A quick glance at my…
Icelandic radio is reporting that the eruption at Eyjafjallajökull has shifted gear this morning, possibly down a notch, in a good way. For now. The explosive ash eruption from the volcano seems to have abated - there is still ash but right now not being flung up into the stratosphere where the…
The volcanic eruption at Eyjafjallajökull continues, but, for now at least, is a "tourist eruption", as nice as they get, with a huge flood of tourists to the mountain on clear days and a boom industry in getting sightseers out to the mountain. From rainbowgirl on flickr via fiveprime - click…

Cool stuff. I've never seen the real thing - how long are the strands, on average?

This site says it can be as much as several feet long, though often two to six inches because it breaks easily. It also tells how to make your own Pele's hair:

"You can create your own Pele's hair by trying to take a sample of pahoehoe flow. When you dip a kitchen whisk, or other implement, into an active pahoehoe flow, as you extract the sample - if you do so quick enough, strands of hair will extrude from your sample back to the ground. These may be many feet in length but only as thick as human hair. These fragile strands do not last long, but show you exactly how they are created."

Never tried that!

THAT IS NEAT

By Anonymous (not verified) on 06 Nov 2009 #permalink