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Hidden beneath the U.S. West's Great Basin, scientists have spied a giant blob of rocky material dripping like honey.
John West of Arizona State University said the blob is between about 30 miles and 60 miles in diameter (between 50 km and 100 km) and extends from a depth of about 47 miles to at least 310 miles (75 km to 500 km) beneath Earth's surface.
The team thinks this drip started some 15 million to 20 million years ago and probably detached from the overlying plate only recently.
Originally posted by Illuminatus I
So they found alien life in the earth?
Last week they found alien life on another planet didn't they? Geeze, it's really starting to show up everywhere now.
Originally posted by Kaytagg
"The team thinks this drip started some 15 million to 20 million years ago"
Wow, this drip started 20 million years ago? That's.. a long time to drip.
"Many in the scientific community thought it couldn't be a drip because there wasn't any elevation change or surface manifestation, and a drip has historically always been connected with major surface changes," says West.
"But those features aren't required to have the drip. Under certain conditions, like in the Great Basin, drips can form with little or no corresponding changes in surface topography or volcanic activity."
The drip tilts to the northeast—opposite to the motion of the North American plate in the hotspot reference frame—and thereby indicates northeast-directed regional mantle flow.