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The Quaternary glaciation, also known as the Pleistocene glaciation, is an alternating series of glacial and interglacial periods during the Quaternary period that began 2.58 Ma (million years ago) and is ongoing.
During the 2.5 million years of the Pleistocene, numerous cold phases called glacials (Quaternary ice age), or significant advances of continental ice sheets, in Europe and North America, occurred at intervals of approximately 40,000 to 100,000 years.
Ice sheets during the Wisconsin glacial episode penetrated deep into North America. The growth of large ice sheets, ice caps, and long valley glaciers was among the most significant events of the Pleistocene. During times of extensive glaciation, more than 45 million square km (roughly 17,400,000 square miles), or about 30 percent of Earth’s ...
Pleistocene Epoch, earlier and major of the two epochs of the Quaternary Period of Earth’s history, an epoch during which a succession of glacial and interglacial climatic cycles occurred. It ended 11,700 years ago.
15 lut 2021 · Learn about the causes and effects of the Pleistocene ice ages, which began about 2.56 million years ago and ended about 11,000 years ago. Explore the evidence of glaciation cycles from ice cores, ocean sediments, and land deposits.
14 mar 2024 · A revised stratigraphy the Lower and Middle Pleistocene in southern Poland is presented, based on geological evidence from key sites, better constraints on the number and age of Scandinavian ice sheet advances, and the stratigraphic setting of the interglacial sequences.
15 maj 2023 · In the early Pleistocene, the NA ice sheet reaches the threshold for deglaciation within ~41 kyr when the mass balance becomes negative, such that ice sheet retreats rapidly and the glacial...
