| Abstract: | The distribution of Cr and other trace metals of environmental interest in a range of widely used U.S. coals was investigated using the Stanford-USGS SHRIMP-RG ion microprobe . Using the oxygen ion source, concentrations of Cr (11 to 176 ppm), V (23 to 248 ppm), Mn (2 to 149 ppm), Ni (2 to 30 ppm), and 13 other elements were determined in illite/smectite, a group of clay minerals commonly present in coal. The results confirm previous indirect or semi-quantitative determinations indicating illite/smectite to be an important host of these metals. Calibration was achieved using doped aluminosilicate-glass synthetic standards and glasses prepared from USGS rock standards. Grains for analysis were identified optically, and confirmed by 1) precursory electron microprobe analysis and wavelength-dispersive compositional mapping, and 2) SHRIMP-RG major element data obtained concurrently with trace element results. Follow-up investigations will focus on the distribution of As and other elements that are more effectively ionized with the cesium primary beam currently being tested. |
| Genre: | Article |
| ProdID: | 70022481 |
| Citation Author: | Kolker, A.; Wooden, J. L.; Persing, H. M.; Zielinski, R. A. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 546 |
| Citation Issue: | 3 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | ACS Division of Fuel Chemistry, Preprints |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 5 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Stanford-USGS shrimp-RG ion microprobe: A new approach to determining the distribution of trace elements in coal; 2000; Article; Journal; ACS Division of Fuel Chemistry, Preprints; Kolker, A.; Wooden, J. L.; Persing, H. M.; Zielinski, R. A. |
| Citation Start Page: | 542 |
| Citation Volume: | 45 |
| Citation Year: | 2000 |
| Type: | citation/reference |
| Text: | Stanford-USGS shrimp-RG ion microprobe: A new approach to determining the distribution of trace elements in coal; 2000; Article; Journal; ACS Division of Fuel Chemistry, Preprints; Kolker, A.; Wooden, J. L.; Persing, H. M.; Zielinski, R. A. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sat, 1 Jan 2000 00:00 -0600 |
| Publisher: | |
