THE ORIGIN OF ARCHAEOLOGICAL SAMPLES ANALYZED BY XRF AND COMPARED BY POLYGONAL GRAPHIC REPRESENTATION

A methodology of comparison is presented as a way to determine the ori gin of ceramic fragments proceeding from clays and archaeological site s of the mh Region of Chile, analyzed through X-ray fluorescence (XRF) spectroscopy. Net areas of peak of sample spectra, are analysed using the graphic polygonal method, developed previously.(1,2) Criterions o f comparison have been defined as a way to determine similarity degree s and proceeding places. Polygonal representations used are triangles, squares, pentagons and hexagons; the similarity grading among samples is defined. Results are compared with clay samples and sand removing effects on fragments are also defined.