Inception of an Ice Age (3 of 3) (image) CAGE - Center for Arctic Gas Hydrate, Climate and Environment Share Print E-Mail Caption Time slices from the model show the development of the ice sheet. It starts out as three independent, distinct ice masses: Celtic, Fennoscandian and Barents Sea. These eventually merge to form one large ice sheet complex. Illustrations: Henry Patton. Credit Henry Patton Usage Restrictions Attribution Share Print E-Mail 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.