SciA nice visualisation shared in Science.
To chart the movements of this ancient ice sheet, geologists assembled scattered clues from the shape of the landscape—features of which were carved by massive glaciers—as well as debris dumped by the ice sheet. For example, researchers pinpointed and dated the edge of the ice sheet by recognizing the hilly terrain made of mud, gravel, and rocks left behind by the retreating ice. Radiocarbon dating of animal remains such as seashells found in these hills revealed when the ice sheet departed from various locations.Over the past few years, a group of about 40 scientists amassed these data to refine the history of what’s known as the British-Irish Ice Sheet.
It shows the melting and retreating ice which at one point covered the British Isles.
Worth reading the full article and watching the visualisation unfold.
Comments