| Abstract: | High vanadium contents in petroleum and other fossil fuels have been attributed to organic-matter type, organisms, volcanic emanations, diffusion of sea water, and epigenetic enrichment. However, these factors are inadequate to account for the high abundance of vanadium in some fossil fuels and the paucity in others. By examining vanadium deposits in sedimentary rocks with sparse organic matter, constraints are placed on processes controlling vanadium accumulation in organic-rich sediments. Vanadium, as vanadate (V(V)), entered some depositional basins in oxidizing waters from dry, subaerial environments. Upon contact with organic matter in anoxic waters, V(V) is reduced to vanadyl (V(IV)), which can be removed from the water column by adsorption. H2S reduces V(IV) to V(III), which hydrolyzes and precipitates. The lack of V(III) in petroleum suggests that reduction of V(IV) to V(III) is inhibited by organic complexes. In the absence of strong complexing agents, V(III) forms and is incorporated in clay minerals. |
| Genre: | Conference Paper |
| ProdID: | 70015695 |
| Citation Author: | Breit, G. N.; Wanty, R. B. |
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| Citation Issue: | 1 |
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| Citation Language: | English |
| Citation Larger Work Title: | American Chemical Society, Division of Petroleum Chemistry, Preprints |
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| Citation Publisher: | Publ by ACS |
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| Citation Search Results Text: | Geochemical controls of vanadium accumulation in fossil fuels; 1989; Conference Paper; American Chemical Society, Division of Petroleum Chemistry, Preprints; Breit, G. N.; Wanty, R. B. |
| Citation Start Page: | 176 |
| Citation Volume: | 34 |
| Citation Year: | 1989 |
| Type: | citation/reference |
| Text: | Geochemical controls of vanadium accumulation in fossil fuels; 1989; Conference Paper; American Chemical Society, Division of Petroleum Chemistry, Preprints; Breit, G. N.; Wanty, R. B. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1989 00:00 -0600 |
| Publisher: | Publ by ACS |
