Hill Glacier [SEP] continent
Hill Glacier
Hill Glacier () is a broad glacier that drains the west-central part of Spaatz Island, Antarctica, at the south side of Ronne Entrance. It was mapped by the United States Geological Survey (USGS) from surveys and U.S. Navy aerial photographs, 1961–66, and was named by the Advisory Committee on Antarctic Names for Lennie J. Hill, a USGS topographic engineer who was a member of the Marie Byrd Land Survey Party, 1967–68.
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