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The present investigation analysed iron artefacts collected in two sites around Aracoaiaba Hill. A known methodology was adapted to investigate several samples collected at the Royal Iron Factory of Sao Joao do Ipanema and Sardinha sites. EDX microanalysis results of non-metallic inclusions were plotted in bivariate graphs. Linear regression (with and without the zero-intercept constraint) and line intercept significance tests were applied to interpret these results. The analysis did not allow the identification of the provenance of the production systems of Sardinha and Ipanema sites. The presence of Ti-rich inclusions was an unambiguous attribute of the samples collected at the Sardinha site.

Archaeometry of ferrous artefacts from Luso-Brazilian archaeological sites near Ipanema River, Brazil