War artefacts (IMAGE) University of Barcelona Caption The combination of both geophysical techniques allowed the researchers to define with a better precision the position, geometry, and the depth of the area where the other unexploded ammunition could be buried. Credit Mossos d’Esquadra (Catalan police forces) Usage Restrictions Credit must be given to the creator. License CC BY 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.