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blues

Well, the 'Geothermal Solution' would not be the worst solution. The problem is, we have scrupulously divorced ourselves from any solutions. Except, of course, EAT THE RICH.

foo

You might want to update your knowledge of deep mining, especially in South Africa. Diamond mines (and Premier in particular) are not particularly deep. It's the Gold mines that are extremely. Many mines are more than 2000m deep, and the deepest, South Deep, has a shaft 3000m deep (that would be 9900 feet). The average mining depth is ~2700m, and the virgin rock temp is 49C.

Elaine Meinel Supkis

Um, I was showing mines from 1900 and tying them in with the Jules Verne book.


Then I talked about the very deep coal mines in Germany because they were in the news. Of course, the gold mines are also extremely deep as you point out.


And all this is in the last 40 years. Super-deep mining is a recent development thanks to modern technology.

JSmith

"Namely, under the fault lines of the Geysers is a crack that runs all the way down to the earth's magma."

It's an old one.

Here's an article I'm sure you'll enjoy!

http://www.sciam.com/article.cfm?chanID=sa006&colID=1&articleID=0006E0BF-BB43-146C-BB4383414B7F0000

DaliWood

If you haven't seen them yet, the Idaho National Lab has done some interesting graphics of temperatures at depth for the US at 3, 4, 5, 6, and 10 km. They're best viewed (unless you have an enormous monitor) by downloading to a graphics software or viewer.

http://geothermal.id.doe.gov/maps/index.shtml

Elaine Meinel Supkis

Thanks for all the links! How wonderful!

I troll the web looking for stuff, sometimes it is like pulling teeth. I have books, too, but they have to be transcribed so I prefer to find things online.

So when readers provide links, I am so grateful! Thank you all, again.

JSmith

Hey... any time, Elaine. Glad you read 'em!

Elaine Meinel Supkis

Seriously, the articles were very useful. I really do like getting new information. It is sometimes kind of obscure when one hunts online.

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