| Abstract: | An important aspect of the petrographic description of coal is the characterization of coal quality, including chemical attributes. For geologic investigations, data on the concentrations, distribution, and modes of occurrence of minor and trace elements provide a basis for reconstructing the probable geochemical environment of the swamp material that was converted into peat, and the geochemical conditions that prevailed during and subsequent to coalification. We have been using electron (EPMA) and proton (PIXE) microprobe analytical methods to obtain data on the chemical characteristics of specific coal constituents in their original associations within coal samples. The present study is aimed at evaluation of the nature of mineral occurrences and heterogeneous elemental concentrations within vitrinites. Vitrinites are usually the most abundant, and therefore most important, maceral group in bituminous coal. 8 refs. |
| Genre: | Conference Paper |
| ProdID: | 70012025 |
| Citation Author: | Minkin, J. A.; Chao, E. C. T.; Thompson, C. L.; Wandless, M. V.; Dulong, F. T.; Larson, R. R.; Neuzil, S. G. |
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| Citation Editor: | Gooley Ron |
| Citation End Page: | 30 |
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| Citation Language: | English |
| Citation Larger Work Title: | Proceedings, Annual Conference - Microbeam Analysis Society |
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| Citation Number Of Pages: | 4 |
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| Citation Search Results Text: | SUBMICROSCOPIC ( less than 1 mu m) MINERAL CONTENTS OF VITRINITES IN SELECTED BITUMINOUS COAL BEDS.; 1983; Conference Paper; Proceedings, Annual Conference - Microbeam Analysis Society; Minkin, J. A.; Chao, E. C. T.; Thompson, C. L.; Wandless, M. V.; Dulong, F. T.; Larson, R. R.; Neuzil, S. G. |
| Citation Start Page: | 27 |
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| Citation Year: | 1983 |
| Type: | citation/reference |
| Text: | SUBMICROSCOPIC ( less than 1 mu m) MINERAL CONTENTS OF VITRINITES IN SELECTED BITUMINOUS COAL BEDS.; 1983; Conference Paper; Proceedings, Annual Conference - Microbeam Analysis Society; Minkin, J. A.; Chao, E. C. T.; Thompson, C. L.; Wandless, M. V.; Dulong, F. T.; Larson, R. R.; Neuzil, S. G. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sat, 1 Jan 1983 00:00 -0600 |
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