Analysis by Michael Reilly
Wed Jun 2, 2010 09:34 PM ET
The giant sinkhole that opened beneath downtown Guatemala City over the weekend is all the rage right now. There's just one problem: it isn't a sinkhole.
"Sure, it looks a lot like a sinkhole," geologist Sam Bonis told Discovery News from his home in Guatemala. "And a whale looks a lot like a fish, but calling it one would be very misleading."
Instead, Bonis prefers the term "piping feature" -- a decidedly less sexy label for the 100-foot deep, 66-foot wide circular chasm. But it's an important distinction, he maintains, because "sinkholes" refer to areas where bedrock is solid but has been eaten away by groundwater, forming a geological Swiss cheese whose contours are nearly impossible to predict.
The situation beneath the country's capital is far different, and more dangerous.
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http://news.discovery.com/earth/dont-call-the-guatemala-sinkhole-a-sinkhole.html