Yellowstone Super-Volcano Far More Dangerous Than Previously Thought
The most detailed seismic images yet published of the plumbing that feeds the Yellowstone super-volcano shows a plume of hot and molten rock rising at an angle from the northwest at a depth of at least 410 miles, contradicting claims that there is no deep plume, only shallow hot rock moving like slowly boiling soup.
A related University of Utah study used gravity measurements to indicate the banana-shaped magma chamber of hot and molten rock a few miles beneath Yellowstone is 20 percent larger than previously believed, so a future cataclysmic eruption could be even larger than thought.
The study's of Yellowstone's plume also suggests the same "hotspot" that feeds Yellowstone volcanism also triggered the Columbia River "flood basalts" that buried parts of Oregon, Washington state and Idaho with lava starting 17 million years ago.
The study's of Yellowstone's plume also suggests the same "hotspot" that feeds Yellowstone volcanism also triggered the Columbia River "flood basalts" that buried parts of Oregon, Washington state and Idaho with lava starting 17 million years ago.
Those are key findings in four National Science Foundation-funded studies in the latest issue of the Journal of Volcanology and Geothermal Research. The studies were led by Robert B. Smith, research professor and professor emeritus of geophysics at the University of Utah and coordinating scientist for the Yellowstone Volcano Observatory.
"We have a clear image, using seismic waves from earthquakes, showing a mantle plume that extends from beneath Yellowstone,'' Smith says.
The plume angles downward 150 miles to the west-northwest of Yellowstone and reaches a depth of at least 410 miles, Smith says. The study estimates the plume is mostly hot rock, with 1 percent to 2 percent molten rock in sponge-like voids within the hot rock.
"We have a clear image, using seismic waves from earthquakes, showing a mantle plume that extends from beneath Yellowstone,'' Smith says.
The plume angles downward 150 miles to the west-northwest of Yellowstone and reaches a depth of at least 410 miles, Smith says. The study estimates the plume is mostly hot rock, with 1 percent to 2 percent molten rock in sponge-like voids within the hot rock.
by Mitch Battros - Earth Changes Media
This is not exactly the kind of news You want to hear, however, it is fact! While governments are gathering and fighting amongst themselves about global warming/climate control, "volcanos" are what they need to be paying attention to. If a "super volcano" like Yellowstone, Toba, in Indonesia, Krakatoa, Mt Vesuvius, or Mt Fuji, just to name a few, decided to have a major blow, it's pretty much game over. It's not a matter of "if", it's just a matter of "when"!
Here are links to other recent volcanic news and facts. Mayon Volcano Forces Evacuations in Philippines - Sphere News http://m.apnews.com/ap/db_16053/contentdetail.htm?contentguid=6OyvvmVa
"Wake Up and Pay Attention",
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