Environmental Engineering Reference
In-Depth Information
Table 11.8
Uranium minerals
Autunite
Ca(UO
2
)
2
(PO
4
)
2
10-12H
2
O
Tyuyamunite
Ca(UO
2
)
2
(VO
4
)
2
5-8H
2
O
Carnotite
K
2
(UO
2
)
2
(UO
4
)
2
1-3H
2
O
Baltwoodite
U-silicate high in K
Weeksite
U-silicate high in Ca
Table 11.9
Potassium, Uranium, and Thorium distribution in rocks and minerals
K (%)
U (ppm)
Th (ppm)
Accessory minerals
Allanite
30-700
500-5,000
Apatite
5-150
20-150
Epidote
20-50
50-500
Monazite
500-3,000
2.5 × 10
4
-20 × 10
4
Sphene
100-700
100-600
Xenotime
500-3, 4 × 10
4
Low
Zircon
300-3,000
100-2,500
Andesite (av.)
1.7
0.8
1.9
A., Oregon
2.9
2.0
2.0
Basalt
Alkali basalt
0.61
0.99
4.6
Plateau basalt
0.61
0.53
1.96
Alkali olivine basalt
<1.4
<1.4
3.9
Tholeiites (orogene)
<0.6
<0.25
<0.05
(non orogene)
<1.3
<0.50
<2.0
Basalt in Oregon
1.7
1.7
6.8
Carbonates
Range (average)
0.0-2.0 (0.3)
0.1-9.0 (2.2)
0.1-7.0(1.7)
Calcite, chalk, Limestone, olomite (all pure)
<0.1
<1.0
<0.5
Dolomite, West Texas (clean)
0.1-0.3
1.5-10
<2.0
Limestone (clean)
Florida
<0.4
2.0
1.5
Cretaceous trend, Texas
<0.3
1.5-15
<2.0
Hunton lime, Okla.
<0.2
<1.0
<1.5
West Texas
<0.3
<1.5
<1.5
Clay minerals
Bauxite
3-30
10-130
Glauconite
5.08-5.30
Bentonite
<0.5
1-20
6-50
Montmorillonite
0.16
2-5
14-24
Kaolinite
0.42
1.5-3
6-19
Illite
4.5
1.5
Mica
(continued)
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