Signs of a New Geological Epoch (IMAGE) University of the Basque Country Caption Artificial spheroids (left: carbonaceous; centre: plastic; right: metallic) and their respective compositional spectra present in the anthropocene sediments in the Urola Estuary (Basque Coast Geopark). Taken from the Master's Dissertation on the Quarternary Period by Aintzane Goffard (2015). 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.