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To: energyplay who wrote (59637)	1/30/2005 4:53:10 AM
From: smolejv@gmx.net	Read Replies (1) \| Respond to of 74559

... re Uranium, on my last leg of BlankErz (from Blankenstein into Erzgebirge aka Ore Mountains, iow crossing Germany from West to East, as opposed North to South on the previous trail), we spent 3,4 hours in a decomissioned Pöhla mine near Schwarzenberg, in the region, which next to Gera & surroundings (Silurian sediments) produced majority of the cake for russion bombs; >>Between 1946 and 1990, Wismut produced a total of around 220,000 tonnes of uranium.<< The whole mine must have been the size of 10plus by 3plus miles in X and Y - going all the way to Tchechoslovakia/Joachimsthal (Marie Curie etc...) under Schneeberg massiv (granite of the best quality;) Vertically it went from 800 m down to maybe 45m above the sea level (17 horizons). On decomissioning they plugged the main tunnel solid at app 4 km (to keep radon in and mineralogists out), but we had to take the train anyhow. They mined all kinds of other things there before going big time for Uranium. There's been 1500 miners working at its height, and now there's three of them, greeting the visitors, giving them a ride, greeting the old Kumpels (there were two or three with their wives). When the chief hit the button at the end of the shift, the whole darn region trembled ... They had special recovery methods, where the miner worked with a pneumatic drill AND a Geiger counter - a war against entropy at its hardest and "unbelievablest": we had a chance to listen to the drill (just listen!) for 10 seconds. I would not touch that thing with a 10-foot pole and they sometimes served THREE at the same time for 8 hours. On the way back I could enjoy the sight of huge rejuvenated tailings hills - at Schlema aka Radon city, later at Ronneburg... If you look up Pöhla mine with Google, you will find tons of mineralogy references. Have a look at insel.heim.at and of course antenna.nl Regards DJ PS: I know this is absolutely off topic, but I hope it makes good reading;)