Factors Affecting the Energy-Dispersive X-Ray Fluorescence (EDXRF) Analysis of Archaeological Obsidian
Non-destructive XRF analysis of obsidian artifacts presents unique challenges for quantitative trace element characterization. These empirical tests of the effects of sample size and surface configuration allow estimation of minimum size requirements for different analyses. The results also show that errors resulting from surface irregularities are usually insignificant relative to other errors in the analysis.
KeywordsPeak Ratio Fixed Thickness Artifact Size Infinite Thickness Radioisotope Source
Unable to display preview. Download preview PDF.
- Bertin, E. 1978 Introduction to X-ray Spectrometric Analysis. New York, Plenum Press.Google Scholar
- Davis, M. K. 1994 Bremsstrahlung ratio technique applied to the non-destructive energy-dispersive X-ray fluorescence analysis of obsidian. International Association for Obsidian Studies Bulletin 11.Google Scholar
- Franzini, M., L. L. and Saitta M. 1976 Determination of the X-ray fluorescence mass absorption coefficient by measurement of the intensity of Ag Ka compton scattered radiation. X-ray Spectrometry 5: 84–87.Google Scholar
- Jenkins, R., Gould, R.W., and Gedcke, D. 1981 Quantitative X-ray Spectrometry. New York, Marcel Dekker, Inc.Google Scholar
- Govindaraju, K. 1989 1989 Compilation of working values and sample description for 272 geostandards. Geostandards Newsletter 13 (special issue).Google Scholar
- Hampel, J.H. 1984 Technical considerations in X-ray fluorescence analysis of obsidian. In: Hughes, R. E. ed., Obsidian Studies in the Great Basin. Berkeley, Contributions of the University of California Archaeological Research Facility: 21–25.Google Scholar
- Hughes, R. E. 1984 Obsidian source studies in the Great Basin: Problems and Prospects. In: Hughes, R. E. ed., Obsidian Studies in the Great Basin. Berkeley: Contributions of the University of California Archaeological Research Facility: 1–20.Google Scholar
- Jackson, T.L. and Hampel, J.H. 1992 Size Effects in the Energy-Dispersive X-ray Fluorescence (EDXRF) Analysis of Archaeological Obsidian Artifacts. Presented at the 28th International Symposium on Archaeometry, Los Angeles.Google Scholar
- McCarthy, J.J., and Schamber, F.H. 1981 Least-squares fit with digital filter: a status report. In: Heinrich, K.F.J., Newbury, D.E., Myklebust, R.L. and Fiori, E. eds., Energy Dispersive X-ray Spectrometry. Washington, DC, National Bureau of Standards Special Publication 604: 273–296.Google Scholar
- Schamber, F.H. 1977 A modification of the linear least-squares fitting method which provides continuum suppression. In: Dzubay, T.G., ed., X-ray Fluorescence Analysis of Environmental Samples. Ann Arbor, Science Publishers: 241–257.Google Scholar
- Shackley, M. Steven and Hampel, J. 1992 Surface effects in the energy dispersive X-ray fluorescence (EDXRF) analysis of archaeological obsidian. Presented at the 28th International Symposium on Archaeometry, Los Angeles.Google Scholar
- Tatlock, D. B., F.J. Flanagan, Harry Bastron, Sol Berman, and A. L. Sutton, Jr. 1976 Rhyolite, RGM-1, from Glass Mountain, California. In: E. J. Flanagan, ed., Descriptions and Analyses of Eight New USGS Roch Standards. U. S. Geological Survey Professional Paper 850: 11–14.Google Scholar