Skrevet av Emne: Carlsbad kollapsar  (Lest 4170 ganger)

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Utlogget Narve

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Carlsbad kollapsar
« p: 12.11.2009 20:35 »
men byen, altså, ikkje grotta. Og her har naturlegvis oljeindustien skulda, som vanleg...
Biletet er frå nabobyen, som også kollapsar. Og det er karst.
http://www.nrk.no/nyheter/1.6860881
Look deep into nature, and then you will understand everything better.
- Albert Einstein -

Utlogget Rolf

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Sv: Carlsbad kollapsar
« Svar #1 p: 19.11.2009 19:27 »
""The cavern was formed over three decades," the AP writes, "as oil field service companies pumped fresh water into a salt layer more than 400 feet below the surface and extracted several million barrels of brine to help with drilling... Over the past few decades, communities in Texas, Kansas, Michigan, Canada and Europe learned of similar underground danger only after cracks appeared and the ground began to sink." Unsurprisingly, then, "this man-made salt cavern has residents nervous."!"


Enda litt mer her:

http://bldgblog.blogspot.com/2009/11/salt-space-biospeleology.html
"When I try to imagine a faultless love
Or the life to come, what I hear is the murmur
Of underground streams, what I see is a limestone landscape."
W.H. Auden, "In Praise of Limestone"