“I know nothing!”

Posted: June 27, 2008 in Headlines, Science & Research

Any fans of the sitcom ‘Hogan’s Heroes’ out there remember that this was Sgt. Schultz’ response anytime he saw the obvious, but was determined to maintain the status quo. Such is the case for this latest discovery behind melting ice in the Arctic.

Volcanic eruptions reshape Arctic ocean floor: study
AFP

PARIS (AFP) – Recent massive volcanoes have risen from the ocean floor deep under the Arctic ice cap, spewing plumes of fragmented magma into the sea, scientists who filmed the aftermath reported Wednesday.

The eruptions — as big as the one that buried Pompei — took place in 1999 along the Gakkel Ridge, an underwater mountain chain snaking 1,800 kilometres (1,100 miles) from the northern tip of Greenland to Siberia.

Scientists suspected even at the time that a simultaneous series of earthquakes were linked to these volcanic spasms.

But when a team led of scientists led by Robert Sohn of the Woods Hole Oceanographic Institution in Massachusetts finally got a first-ever glimpse of the ocean floor 4,000 meters (13,000 feet) beneath the Arctic pack ice, they were astonished.

What they saw was unmistakable evidence of explosive eruptions rather than the gradual secretion of lava bubbling up from Earth’s mantle onto the ocean floor.

Previous research had concluded that this kind of so-called pyroclastic eruption could not happen at such depths due to the crushing pressure of the water. (more…)

Carry on my sheep. You did not see this article

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