Re: OT: A little more GW stuff



In article <eu1rl.10890$qa.10775@xxxxxxxxxxxxxxxxxxxxxx>,
Ken Dixon <nsvmiami@xxxxxxxxxxxxx> wrote:

Fire Under Arctic Ice: Volcanoes Have Been Blowing Their Tops In The
Deep Ocean

ScienceDaily (June 26, 2008) ? A research team led by the Woods Hole
Oceanographic Institution (WHOI) has uncovered evidence of explosive
volcanic eruptions deep beneath the ice-covered surface of the Arctic
Ocean. Such violent eruptions of splintered, fragmented rock--known as
pyroclastic deposits -- were not thought possible at great ocean depths
because of the intense weight and pressure of water and because of the
composition of seafloor magma and rock.

Researchers found jagged, glassy rock fragments spread out over a 10
square kilometer (4 square mile) area around a series of small volcanic
craters about 4,000 meters (2.5 miles) below the sea surface. The
volcanoes lie along the Gakkel Ridge, a remote and mostly unexplored
section of the mid-ocean ridge system that runs through the Arctic Ocean.

"These are the first pyroclastic deposits we've ever found in such deep
water, at oppressive pressures that inhibit the formation of steam, and
many people thought this was not possible," said WHOI geophysicist Rob
Reves-Sohn, lead author and chief scientist for the Arctic Gakkel Vents
Expedition (AGAVE) of July 2007. "This means that a tremendous blast of
CO2 was released into the water column during the explosive eruption."

The paper, which was co-authored by 22 investigators from nine
institutions in four countries, was published in the June 26 issue of
the journal Nature.

for the rest go
http://www.sciencedaily.com/releases/2008/06/080625140649.htm

I'm guessing that man's contribution of CO2 since the start of the
industrial age was a major factor in contributing to the expansion of
these volcanos, which threaten the arctic ice on which cute little baby
polar bears depend for their survival.

Misc "What do I win?"

;)

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