Re: Louisiana: Assumption Parish Bayou Corne Sinkhole 2012-2013
Residents angry as Assumption sinkhole continues collapsing
wwltv.com
Posted on February 25, 2013 at 10:31 PM
Updated today at 1:46 PM
...
Geophyisicists now say the western side of one of the brine caverns is collapsing, filling in from deep in the Earth, causing the sinkhole at the surface to expand and contract.
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The secretary of the Louisiana Department of Natural Resources flat-out testified at the same hearing, ?The cavern collapse led to the sinkhole and created a path for the natural gas to come to the surface.?
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?The sinkhole is constantly changing. It changes every time we go out there. Not just on the surface, but in the sub-surface,? said Gary Hecox, a hydrogeologist with CB&I, formerly the Shaw Group, who is a consultant for the state about how to best handle the sinkhole.
He said it's uncharted territory.
?The cavern was 3,400 feet deep, which is deeper than any known cavern failure impacting the surface in the international record,? Hecox said.
Nowhere in the world has a brine cavern this large collapsed, and Hecox said the data shows it's not finished yet.
...
As photos from the Louisiana Environmental Action Network show, when the sinkhole first appeared, it was just 400 feet in diameter. As of mid-February, it had swallowed nine acres.
Scientists say the worst-case scenario is it could swallow 40 acres.
...
Full text:
Residents angry as Assumption sinkhole continues collapsing
wwltv.com
Posted on February 25, 2013 at 10:31 PM
Updated today at 1:46 PM
...
Geophyisicists now say the western side of one of the brine caverns is collapsing, filling in from deep in the Earth, causing the sinkhole at the surface to expand and contract.
...
The secretary of the Louisiana Department of Natural Resources flat-out testified at the same hearing, ?The cavern collapse led to the sinkhole and created a path for the natural gas to come to the surface.?
...
?The sinkhole is constantly changing. It changes every time we go out there. Not just on the surface, but in the sub-surface,? said Gary Hecox, a hydrogeologist with CB&I, formerly the Shaw Group, who is a consultant for the state about how to best handle the sinkhole.
He said it's uncharted territory.
?The cavern was 3,400 feet deep, which is deeper than any known cavern failure impacting the surface in the international record,? Hecox said.
Nowhere in the world has a brine cavern this large collapsed, and Hecox said the data shows it's not finished yet.
...
As photos from the Louisiana Environmental Action Network show, when the sinkhole first appeared, it was just 400 feet in diameter. As of mid-February, it had swallowed nine acres.
Scientists say the worst-case scenario is it could swallow 40 acres.
...
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