| Abstract: | This ore deposit formed by reduction and precipitation of U and V in the presence of organic matter at the interface between a stagnant brine and overlying circulating meteoric water. Some samples of the vanadium chlorite (heated before analysis) contain = or >10% V2O5; in fresh samples most of the V is in the V3+ state. XRD data suggest that Fe and V are concentrated preferentially in the interlayer hydroxide sheets of the chlorite. A d060 value of 1.52 A indicates that the chlorite probably has a dioctahedral structure distended by the presence of octahedral Fe and V; it is a IIb polytype. The V ore zone is flanked by peripheral zones with perfectly ordered chlorite/smectite containing much less V than the pure chlorite. Chemical analysis of a sample heated to 900oC before analysis gave SiO2 44.89, Al2O3 25.14, TiO2 0.35, Fe2O3 8.29, MgO 8.47, CaO 0.84, Na2O 0.27, K2O 2.18, Li2O 0.16, UO3 0.92, V2O5 9.14, = 100.65, together with Cr 10, Mn 200, Co 150, Ni 5.8, Cu 10, Zn 140 ppm; XRD, DTG, TG and IR curves are presented. -R.A.H. |
| Genre: | Article |
| ProdID: | 70014585 |
| Citation Author: | Whitney, G.; Northrop, H. R. |
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| Citation End Page: | 495 |
| Citation Issue: | 4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Clays & Clay Minerals |
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| Citation Number Of Pages: | 8 |
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| Citation Search Results Text: | Vanadium chlorite from a sandstone-hosted vanadium-uranium deposit, Henry basin, Utah.; 1986; Article; Journal; Clays & Clay Minerals; Whitney, G.; Northrop, H. R. |
| Citation Start Page: | 488 |
| Citation Volume: | 34 |
| Citation Year: | 1986 |
| Type: | citation/reference |
| Text: | Vanadium chlorite from a sandstone-hosted vanadium-uranium deposit, Henry basin, Utah.; 1986; Article; Journal; Clays & Clay Minerals; Whitney, G.; Northrop, H. R. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 1 Jan 1986 00:00 -0600 |
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