(IMAGE) University of the Basque Country Caption Elemental determination of the materials using portable instruments at the Galea Fort (Getxo, Basque Country, Spain. Credit UPV/EHU Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.