Gold Placer

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Genuine Natural N California 464 Gram Placer Gold Nugget Bullion
genuine natural n california 464 gram placer gold nugget bullion
$26.00
quality
GOLD New Find CA Placer Nugget River Mining 2537 Grams Oroville CA
gold new find ca placer nugget river mining 2537 grams oroville ca
$85.00
quality
Genuine Natural N California 925 Gram Placer Gold Nugget Bullion
genuine natural n california 925 gram placer gold nugget bullion
$49.00
quality
Genuine Natural N California 535 Gram Placer Gold Nugget Bullion Coarse
genuine natural n california 535 gram placer gold nugget bullion coarse
$28.00
quality
Genuine Natural N California 1051 Gram Placer Gold Nuggets Bullion
genuine natural n california 1051 gram placer gold nuggets bullion
$57.50
quality
570 Gram Alaskan Gold Nuggets Placer Flake Fines Real Alaska Natu
570 gram alaskan gold nuggets placer flake fines real alaska natu
$36.04
quality
Genuine Natural N California 819 Gram Placer Gold Nugget Bullion
genuine natural n california 819 gram placer gold nugget bullion
$46.00
quality
470 Gram Gold 18 20k Alaska Natural Raw Placer Alaskan Nugget Bering Flake Fine
470 gram gold 18 20k alaska natural raw placer alaskan nugget bering flake fine
$30.11
quality
Genuine Natural N California 554 Gram Placer Gold Nugget Bullion
genuine natural n california 554 gram placer gold nugget bullion
$33.50
quality
Genuine Natural N California 870 Gram Placer Gold Nugget Bullion
genuine natural n california 870 gram placer gold nugget bullion
$49.00
quality
Genuine Natural N California 483 Gram Placer Gold Nugget Bullion
genuine natural n california 483 gram placer gold nugget bullion
$27.50
quality
Genuine Natural N California 507 Gram Placer Gold Nugget Bullion
genuine natural n california 507 gram placer gold nugget bullion
$28.00
quality
Genuine Natural N California 699 Gram Placer Gold Nugget Bullion
genuine natural n california 699 gram placer gold nugget bullion
$40.00
quality
Genuine Natural Coarsegold California 993 Gram Placer Gold Nuggets Bullion
genuine natural coarsegold california 993 gram placer gold nuggets bullion
$55.00
quality
430 Gram Natural Raw Alaskan Placer 18k 20k Gold Nugget Flake Fines Dust Alaska
430 gram natural raw alaskan placer 18k 20k gold nugget flake fines dust alaska
$27.66
quality
Genuine Natural N California 1177 Gram Placer Gold Nugget Bullion
genuine natural n california 1177 gram placer gold nugget bullion
$64.50
quality
Genuine Natural N California 1201 Gram Placer Gold Nugget Bullion
genuine natural n california 1201 gram placer gold nugget bullion
$65.00
quality
Genuine Natural N California 684 Gram Placer Gold Nugget Bullion
genuine natural n california 684 gram placer gold nugget bullion
$38.00
quality
520 Gram Natural Raw Alaskan Placer 18k 20k Gold Nugget Flake Fines Dust Alaska
520 gram natural raw alaskan placer 18k 20k gold nugget flake fines dust alaska
$33.64
quality
490 Gram Natural Raw Alaskan Placer 18k 20k Gold Nugget Flake Fines Dust Alaska
490 gram natural raw alaskan placer 18k 20k gold nugget flake fines dust alaska
$31.38
quality
LARGE Alaskan Yukon Natural Placer Gold Nugget Ring Size 65
large alaskan yukon natural placer gold nugget ring size 65
$499.99
quality
580 Gram Alaskan Gold Nuggets Placer Flake Fines Real Alaska Natural 18k 20k
580 gram alaskan gold nuggets placer flake fines real alaska natural 18k 20k
$36.90
quality
1915 Western Manufacturing Placer Gold Mining Company Stock Certificate COLORADO
1915 western manufacturing placer gold mining company stock certificate colorado
$120.00
quality
440 Gram Placer Gold Panned Natrual Raw Alaskan Nugget Flakes Fines From Alaska
440 gram placer gold panned natrual raw alaskan nugget flakes fines from alaska
$28.55
quality

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Gold Placer

Frequently Asked Questions...

Why is there Uranium in Elliot lake mine?

What I mean is what is the reason of uranium existing there? why? how did it get there?.....etc


Best Answer...

Answer:

The rock at Elliot Lake is a pebble conglomerate. It is a sedimentary rock, formed, geez I can't remember but lets say about 2.7 billion years ago.

What is interesting about this deposit is that it is similar to a gold placer deposit, a deposit where heavy metallic minerals derived from erosion accumulated in sediments. There is some indication that at least some of the uranium was added by groundwater after the sediments were deposited, but most of it appears to have been transported as grains in moving water, which is pretty rare.

Uranium is mobile in water under oxidizing conditions, and forms solid minerals under reducing conditions. So, for placer deposits to form, the atmosphere had to have a low oxidation state, and that is why such deposits of uranium are only found in very old sediments.

More recent deposits of uranium tend to be associated with places where oxidizing groundwaters pass into reducing sediments.

Anyway, presumably what happened at Elliot Lake was that a lot of uranium was transported in groundwater to the surface, where it formed minerals, but not in any high concentrations. During erosion of the rock that contained these uranium minerals, the uranium minerals were moved in fast-running streams and deposited with less dense pebbles derived from regular rocks.

I have a sample of uranium ore from Elliot Lake in a bucket somewhere (I visited the mine a long time ago). The sample isn't too hazardous because the amount of uranium in it is very small, I didn't get it in one of the ruicher zones. Mostly it is pyrite and quartz pebbles. It is an interesting rock.


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