A bronze spear head from Central Portugal dated to Late Bronze Age has been analyzed by non-destructive micro-EDXRF in the metal surface and corrosion layers. The artifact had previously been analyzed using a conventional EDXRF spectrometer having a larger incident beam. The quantification of the micro-EDXRF analyses showed that lead content in corrosion layers can reach values up to four times higher than the content determined in the metal surface. Results obtained with the higher energy incident beam from the EDXRF equipment, although referring mainly to the corrosion layers, seem to suffer some influence from the surface composition of the metallic alloy.
|Number of pages||3|
|Journal||Nuclear Instruments & Methods In Physics Research Section A-Accelerators Sp|
|Issue number||1 SPEC. ISS.|
|Publication status||Published - 21 Sep 2007|
- Bronze alloy
- Late Bronze Age