| Abstract: | A semiquantitative X-ray diffraction procedure has been developed that can be used to acquire reproducible mineralogic data from geographically unrelated stream-sediment samples having similar mineralogy. Weight percentages for quartz, total-feldspar, and total-clay can be determined by direct comparison of intensities with standard-mineral mixtures of known weight percent. Matrix effects and mass-absorption differences are circumvented by taking the ratio of peak-intensity, in counts per second, for quartz relative to that of other minerals being quantified. Mineral percentages generally are reproducible to within 10 percent. |
| Genre: | Article |
| ProdID: | 70015536 |
| Citation Author: | Webster, D. M. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 844 |
| Citation Issue: | 9 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Environmental Technology Letters |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 12 |
| 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: | A semiquantitative X-ray diffraction method to determine mineral composition in stream sediments with similar mineralogy; 1989; Article; Journal; Environmental Technology Letters; Webster, D. M. |
| Citation Start Page: | 833 |
| Citation Volume: | 10 |
| Citation Year: | 1989 |
| Type: | citation/reference |
| Text: | A semiquantitative X-ray diffraction method to determine mineral composition in stream sediments with similar mineralogy; 1989; Article; Journal; Environmental Technology Letters; Webster, D. M. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1989 00:00 -0600 |
| Publisher: | |
