Search results
Results From The WOW.Com Content Network
The Laurentide ice sheet (LIS) was a massive sheet of ice that covered millions of square miles, including most of Canada and a large portion of the Northern United States, multiple times during the Quaternary glaciation epochs, from 2.58 million years ago to the present.
Boulder Glacier, Mount Baker. There are around 880 glaciers in Washington state, with 186 named according to the Geographic Names Information System (GNIS). [6] However, the 1980 eruption of Mount St. Helens eliminated nine of its eleven named glaciers and only the new glacier known as Crater Glacier has been reestablished since. Olympic Mountains
Ice streams are a type of glacier [5] and many of them have "glacier" in their name, e.g. Pine Island Glacier. Ice shelves are listed separately in the List of Antarctic ice shelves . For the purposes of these lists, the Antarctic is defined as any latitude further south than 60° (the continental limit according to the Antarctic Treaty System ).
A minor series of glaciations occurred from 460 to 430 Ma, and there were extensive glaciations from 350 to 289 Ma. The Late Cenozoic Ice Age has seen extensive ice sheets in Antarctica for the last 34 Ma. During the last 3 Ma, ice sheets have also developed on the northern hemisphere.
These glaciers penetrated up to 50 kilometres (31 mi) into the lowlands. Even valleys that appear rather insignificant today such as those of the Isar , Loisach and Ammer rivers, were able to produce large tongues of ice when their glaciers were fed by larger ones, such as the Inn Valley Glacier (e.g. via the Fern Pass ).
A chronology of climatic events of importance for the Last Glacial Period, about the last 120,000 years The Last Glacial Period caused a much lower global sea level.. The Last Glacial Period (LGP), also known as the Last glacial cycle, occurred from the end of the Last Interglacial to the beginning of the Holocene, c. 115,000 – c. 11,700 years ago, and thus corresponds to most of the ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Over the past 740,000 years there have been eight glacial cycles. [7] The entire Quaternary period, starting 2.58 Ma, is referred to as an ice age because at least one permanent large ice sheet—the Antarctic ice sheet—has existed continuously. There is uncertainty over how much of Greenland was covered by ice during each