File:Uranium distribution in crust.PNG
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Summary[edit]
Distribution of Uranium in the Earth's crust
On the y axis is the amount of uranium in metric tons
On the x axis is the ore grade in ppm
The line approximates a lognormal distribution
Typical ores are as follows:
Vein deposits 10,000+ (ppm)
Pegmatites, unconformity deposits 2,000-10,000
fossil placers, sand stones 1,000-2,000
lower grade fossil placers, sandstones 200-1,000
volcanic deposits 100-200
black shales 20-100
shales, phosphates 10-20
granites 3-10
average crust 1-3
evaporites, siliceous ooze, chert 0.2-1
oceanic igneous crust 0.1-0.2
ocean water 0.0002-0.001
fresh water 0.0001-0.001
| Description | Distribution of Uranium in the Earth's crust |
| Date | 5/11/2007 |
| Source | self-made, source of data Deffeyes & MacGregor, "World Uranium resources" Scientific American, Vol 242, No 1, January 1980, pp. 66-76 |
| Author | Tungsten |
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I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:30, 11 May 2007 | | 678 × 869 (33 KB) | Tungsten (talk | contribs) | '''Distribution of Uranium in the Earth's crust''' On the y axis is the amount of uranium in metric tons On the x axis is the ore grade in ppm Typical ores are as follows: Vein deposits 10,000+ (ppm) Pegmatites, unconformity deposits 2,000-10,000 fossil |
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