WebThe transition from the Last Glacial to the Holocene is a key period for understanding the mechanisms of global climate change. Ice cores from the large polar ice sheets provide a wealth of information with good time resolution for this period. ... The Antarctic cooling precedes the Younger Dryas by at least 1.8 kyr. This suggests that northern ... Web4 Oct 2024 · The term gets its name from a wildflower, Dryas octopetala. It can tolerate cold conditions and was common in parts of Europe 12,800 years ago. At about this time a number of animals became extinct. These included mammoths in Europe, large bison in North America, and giant sloths in South America.
Did the Younger Dryas Flood Shape Prehistoric Earth?
Web26 Jun 2024 · As ice melted about 12,800 years ago, a slug of freshwater may have entered the North Atlantic Ocean, interfering with ocean circulation and triggering the Younger Dryas cold period. NOAA... Web18 Jul 2008 · The Younger Dryas cold event, which lasted from 12,900 to 11,600 years ago, was a rapid return to near-glacial conditions during the transition from the Last Glacial … kody do the forest yt
The LGM British-Irish Ice Sheet: an introduction
Web31 Dec 2013 · Abstract and Figures The Younger Dryas is the last major abrupt climate change event of the last deglaciation occurring ~12 900–11 700 years ago. Large portions of the Northern Hemisphere... WebThe Younger Dryas was an earth period that began roughly 12800 years ago and finished 11600 years ago. These 1200 years mark the transition out of the last great ice age. It … The Younger Dryas, which occurred circa 12,900 to 11,700 years BP, was a return to glacial conditions which temporarily reversed the gradual climatic warming after the Last Glacial Maximum (LGM), which lasted from circa 27,000 to 20,000 years BP. The Younger Dryas was the last stage of the Pleistocene epoch that … See more The presence of a distinct cold period at the end of the LGM interval has been known for a long time. Paleobotanical and lithostratigraphic studies of Swedish and Danish bog and lake sites, as in the Allerød clay pit … See more Analyses of stable isotopes from Greenland ice cores provide estimates for the start and end of the Younger Dryas. The analysis of Greenland Summit ice cores, as part of the Greenland Ice Sheet Project 2 and Greenland Icecore Project, estimated that the … See more The Younger Dryas is thought to have been caused primarily by significant reduction or shutdown of the North Atlantic "Conveyor" – … See more • 8.2 kiloyear climate event – Rapid global cooling around 8,200 years ago • Preboreal oscillation - Cooling episode within the preboreal See more Since 1916 and the onset and the subsequent refinement of pollen analytical techniques and a steadily-growing number of pollen diagrams, palynologists have concluded that the Younger Dryas was a distinct period of vegetational change in large parts of … See more In Western Europe and Greenland, the Younger Dryas is a well-defined synchronous cool period. Cooling in the tropical North See more The end of the Younger Dryas was caused by an increase in carbon dioxide levels and a shift in Atlantic Meridional Overturning Circulation. Evidence suggests that most of the increase in temperature between the Last Glacial Maximum and the Holocene took place … See more redeye air intake worth it