| Abstract: | The Christy deposit formed through a series of complex processes. The initial phase of mineralization is directly related to the infiltration of novaculite by alkali-rich fluids that were probably derived from carbonatite magma. Titanium, V, Nb, and Li were introduced by the alkali-rich fluids at temperatures that were as high as 600??C. During the initial stage of mineralization, V was concentrated in aegirine and sodic amphibole, Li was concentrated in taeniolite, minor amounts of Ti were concentrated in aegirine, and pyrite formed. The replacement of novaculite by the aforementioned minerals yielded excess silica, which precipitated as quartz. Niobium- and V-bearing brookite precipitated with the quartz. Minerals formed during the first stage reacted with a second fluid at temperatures of 100?? to 300??C and V was then concentrated in smectite and goethite. The second fluid was a mixture of low-temperature metasomatic fluid and groundwater. Vanadium was further concentrated in clay minerals in goethite, and in vug minerals as low-temperature alteration proceeded. -from Author |
| Genre: | Article |
| ProdID: | 70017577 |
| Citation Author: | Flohr, M. J. K. |
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| Citation End Page: | 130 |
| Citation Issue: | 1 |
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| Citation Language: | English |
| Citation Larger Work Title: | Economic Geology |
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| Citation Number Of Pages: | 26 |
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| Citation Search Results Text: | Titanium, vanadium, and niobium mineralization and alkali metasomatism from the Magnet Cove complex, Arkansas; 1994; Article; Journal; Economic Geology; Flohr, M. J. K. |
| Citation Start Page: | 105 |
| Citation Volume: | 89 |
| Citation Year: | 1994 |
| Type: | citation/reference |
| Text: | Titanium, vanadium, and niobium mineralization and alkali metasomatism from the Magnet Cove complex, Arkansas; 1994; Article; Journal; Economic Geology; Flohr, M. J. K. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
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