Published: 2016-01-01

Erratic Flint from Poland: Preliminary results of petrographic and geochemical analyses

Iwona Sobkowiak-Tabaka , Dagmara H. Werra , Richard E. Hughes , Rafał Siuda

Abstract

The paper presents the preliminary results of petrographic and geochemical analyses of erratic flint found throughout present-day Poland. Three different methods have been applied: electron probe micro analysis (EPMA), scanning electron method (SEM) and energy-dispersive x-ray fluorescence (EDXRF) spectrometry. The results of the EPMA and SEM analyses of erratic flint have revealed a largely homogeneous mineral composition, which suggests that mineral composition will be of limited utility in in distinguishing erratic flint. However, EDXRF analysis of a small sample of erratic flint has identified differences in calcium (Ca) and iron (Fe) content between and among samples of erratic and ‘chocolate’ flint but a much larger sample of erratic flint specimens needs to be analysed to determine the range of chemical composition they contain.

Keywords:

erratic flint, geochemical analysis, EDXRF, SEM, EPMA

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Sobkowiak-Tabaka, I., Werra, D. H., Hughes, R. E., & Siuda, R. (2016). Erratic Flint from Poland: Preliminary results of petrographic and geochemical analyses. Archaeologia Polona, 54, 67–82. Retrieved from https://journals.iaepan.pl/apolona/article/view/430

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