Several sources gave the depth of the new sinkhole as 330
feet (100 meters), the same as the previous one that opened up not
far away in Guatemala City a couple of years ago. Who knows whether
it was actually measured or they're just guessing, maybe using the
same figure because the two look a lot alike. These were most likely
caused by soil piping due to leaking water and sewer mains, so they
could logically be the same depth, reaching down to whatever level
the water drained away on. Given that it looks like the walls are
essentially sand, I wouldn't expect open passage to go very far, or
stay open very long.
Mark Minton
At 10:43 PM 6/3/2010, David wrote:
http://www.csmonitor.com/var/ezflow_site/storage/images/media/images/csm-photo-galleries-images/in-pictures-images/guate-sinkhole/002/8062435-1-eng-US/002_full_600.jpg
The new Guatemala sinkhole shown above is about 20 meters across, so
the depth to the very bottom looks like 150 meters plus.
There seems to be a canyon down there on top of the breakdown pile, so
that would suggest something.
Anything you rig to could fall off into the sinkhole, or something
could fall and cut the rope.
Maybe a helicopter rappel would be safer?
Would be best to lower a video camera down first. Right ?
Please reply to mmin...@caver.net
Permanent email address is mmin...@illinoisalumni.org
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