Pleistocene - Wikipedia
The end of the Early Pleistocene is marked by the Mid-Pleistocene Transition, with the cyclicity of glacial cycles changing from 41,000-year cycles to asymmetric 100,000-year cycles, making the climate variation more extreme.
Pleistocene Epoch | Plants, Animals, Climate, Ice Age, & Facts
Nov 23, 2024 · 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. It was preceded by the Pliocene Epoch and followed by the Holocene Epoch.
The Pleistocene - The Age of Ice - University of Arizona
The last Pleistocene ice age reached a maximum 22,000-14,000 yBP. During this period two large ice sheets have been identified in the Northern Hemisphere: the Laurentide Ice Sheet covering parts of Eastern North America, and the Scandinavian Ice Sheet covering parts of …
Pleistocene events and environments - Encyclopedia Britannica
Nov 23, 2024 · In addition to the Antarctic and Greenland ice sheets, most of the glacial ice was located in the Northern Hemisphere, where large ice sheets extended to midlatitude regions.
Quaternary glaciation - Wikipedia
Extent of maximum glaciation (in black) in the Northern Hemisphere during the Pleistocene. The formation of 3 to 4 km (1.9 to 2.5 mi) thick ice sheets equate to a global sea level drop of about 120 m (390 ft)
Late Pleistocene extinctions - Wikipedia
Extinctions in North America were concentrated at the end of the Late Pleistocene, around 13,800–11,400 years Before Present, which were coincident with the onset of the Younger Dryas cooling period, as well as the emergence of the hunter-gatherer Clovis culture. The relative importance of human and climactic factors in the North American ...
Evolution of the Eastern Tropical Pacific Through Plio-Pleistocene ...
Apr 7, 2006 · SST and productivity in the eastern tropical Pacific varied in phase with global ice volume changes at a dominant 41,000-year (obliquity) frequency throughout this time. Changes in the Southern Hemisphere most likely modulated most of the changes observed.
The Pleistocene - The Age of Ice - University of Arizona
The most recent glacial period — the Pleistocene Epoch — began about 2 MyBP (2 Million years Before Present). About 2 MyBP, continental glaciers appeared in the Northern Hemisphere, marking the beginning of the Pleistocene epoch.
Onset of “Hudson Strait” Heinrich events in the eastern North …
Dec 27, 2008 · Heinrich events are well documented for the last glaciation, but little is known about their occurrence in older glacial periods of the Pleistocene. Here we report scanning XRF and bulk carbonate δ...
Revisiting the mid-Pleistocene transition ocean circulation crisis
Nov 7, 2024 · In this work, we use a new, highly resolved Nd isotope record co-registered with benthic stable carbon and oxygen isotopic time series to demonstrate that the hypothesis of a circulation crisis across this interval must be revised.