Laizure Glacier [SEP] continent
Laizure Glacier
Laizure Glacier () is a broad glacier that enters the sea immediately west of Drake Head, Oates Coast, Antarctica. The glacier was roughly plotted by Australia from U.S. Navy Operation Highjump photography, 1946–47, and from photographs and other data obtained by Australian National Antarctic Research Expeditions, 1959–62. It was mapped in detail by the United States Geological Survey from surveys and U.S. Navy photography, 1960–64, and was named by the Advisory Committee on Antarctic Names for Lieutenant David H. Laizure, U.S. Navy, a navigator on
Eocene–Oligocene extinction event). The term Late Cenozoic Ice Age is used to include this early phase.
During this last glacial period there were alternating episodes of glacier advance and retreat. Within the last glacial period the Last Glacial Maximum was approximately 22,000 years ago. While the general pattern of global cooling and glacier advance was similar, local differences in the development of glacier advance and retreat make it difficult to compare the details from continent to continent (see picture of ice core data below for differences). Approximately 13,000