Floating Glacial Ice Caps in the Arctic Ocean

See allHide authors and affiliations

Science  13 Jun 1975:
Vol. 188, Issue 4193, pp. 1116-1118
DOI: 10.1126/science.188.4193.1116


Two arguments are presented, one in favor of the existence of thicker ice in the Arctic Ocean during glacial time, and the other in favor of a full-fledged Arctic ice cap. The first is based on the Greenland air temperature record obtained from isotopic studies of the Camp Century ice core. The second is based on the oxygen isotope record of benthic foraminifera from a deep Pacific Ocean core.