Opening of glacial Lake Agassiz’s eastern outlets by the start of the Younger Dryas cold period
@article{Leydet2018OpeningOG, title={Opening of glacial Lake Agassiz’s eastern outlets by the start of the Younger Dryas cold period}, author={David J. Leydet and David J. Leydet and Anders E. Carlson and James T. Teller and Andy J. Breckenridge and Aaron C M Barth and Aaron C M Barth and David J. Ullman and David J. Ullman and Gaylen Sinclair and Glenn A. Milne and Joshua K. Cuzzone and Marc W. Caffee}, journal={Geology}, year={2018}, volume={46}, pages={155-158} }
The Younger Dryas (12.9 ± 0.1 to 11.7 ± 0.1 ka) was a return to cold conditions in the Northern Hemisphere during the last deglaciation. This climatic event was hypothesized to have been caused by a change in glacial Lake Agassiz (north-central North America) overflow from its routing to the Gulf of Mexico to an easterly route to the North Atlantic due to Laurentide ice-sheet retreat from the Lake Superior basin, which caused a reduction in Atlantic meridional overturning circulation…
35 Citations
Catastrophic Drainage From the Northwestern Outlet of Glacial Lake Agassiz During the Younger Dryas
- Environmental ScienceGeophysical Research Letters
- 2021
Catastrophic meltwater drainage from glacial Lake Agassiz has been hypothesized as a trigger for large‐scale ocean circulation change initiating the Younger Dryas cold reversal. Here we quantify the…
Hudson Strait ice dam collapse: An explanation for the onset of the Younger Dryas cold climate in Europe in only one year
- Environmental ScienceJOURNAL OF ADVANCES IN NATURAL SCIENCES
- 2021
The Younger Dryas cold climate event in Europe began abruptly at about 12,679 years BP because of the rapid collapse of a dynamic ice dam that had existed because of ice stream flow across the east end of Hudson Strait in northern Canada.
Arctic drainage of Laurentide Ice Sheet meltwater throughout the past 14,700 years
- Environmental Science, GeographyCommunications Earth & Environment
- 2022
During the last deglaciation substantial volumes of meltwater from the decaying Laurentide Ice Sheet were supplied to the Arctic, Gulf of Mexico and North Atlantic along different drainage routes,…
The role of Northeast Pacific meltwater events in deglacial climate change
- Environmental Science, GeographyScience Advances
- 2020
It is infer that Pacific meltwater fluxes contributed to net Northern Hemisphere cooling prior to North Atlantic Heinrich Events, and again during the Younger Dryas stadial, and underscores the importance of changes in North Pacific freshwater fluxes and circulation in deglacial climate events.
Patterns of ice recession and ice stream activity for the MIS 2 Laurentide Ice Sheet in Manitoba, Canada
- Environmental ScienceBoreas
- 2021
Reconstruction of deglacial ice margins provides insights into the demise of past ice sheets and ice‐marginal lakes and helps to understand how former ice sheets responded to climate change. Here, we…
Deglacial to Holocene variability in surface water characteristics and major floods in the Beaufort Sea
- Environmental Science, GeographyCommunications Earth & Environment
- 2020
Surface water characteristics of the Beaufort Sea have global climate implications during the last deglaciation and the Holocene, as (1) sea ice is a critical component of the climate system and (2)…
Moraines and late-glacial stratigraphy in central Lake Superior
- Environmental ScienceQuaternary Research
- 2020
Abstract Seismic-reflection surveys of the Isle Royale sub-basin, central Lake Superior, reveal two large end moraines and associated glacial sediments deposited during the last cycle of the…
Glacial deposits and landforms at the terminus of a Laurentide ice stream, Oneida Lake, New York, from multichannel seismic reflection data
- Environmental Science, GeologyQuaternary Research
- 2022
Abstract The deglaciation record of the Ontario Lowland and Mohawk Valley of North America is important for constraining the retreat history of the Laurentide Ice Sheet, end-Pleistocene paleoclimate,…
The deglaciation of the Americas during the Last Glacial Termination
- Environmental Science, Geography
- 2020
References
SHOWING 1-10 OF 29 REFERENCES
Alternative routing of Lake Agassiz overflow during the Younger Dryas: new dates, paleotopography, and a re-evaluation
- Environmental Science, Geography
- 2005
The Tintah-Campbell gap and implications for glacial Lake Agassiz drainage during the Younger Dryas cold interval
- Environmental Science, Geography
- 2015
Reduced meltwater outflow from the Laurentide ice margin during the Younger Dryas
- Environmental Science, GeographyNature
- 1996
THE cause of the Younger Dryas cold event, which interrupted the last deglaciation, is still a matter of debate1. A prevalent hypothesis, proposed by Broecker et al.2 is that the abrupt climate…
Routing of meltwater from the Laurentide Ice Sheet during the Younger Dryas cold episode
- Environmental Science, GeographyNature
- 1989
ROOTH1 proposed that the Younger Dryas cold episode, which chilled the North Atlantic region from 11,000 to 10,000 yr BP, was initiated by a diversion of meltwater from the Mississippi drainage to…
Identification of Younger Dryas outburst flood path from Lake Agassiz to the Arctic Ocean
- Environmental ScienceNature
- 2010
A large flood into the Arctic Ocean at the start of the Younger Dryas leads us to reject the widespread view that Agassiz overflow at this time was solely eastward into the North Atlantic Ocean.
Age verification of the Lake Gribben forest bed and the Younger Dryas Advance of the Laurentide Ice Sheet
- Environmental Science
- 1999
Analysis of nine wood samples from the Lake Gribben forest bed near Lake Gribben, Michigan, yielded a combined age of 10 025 ± 100 14C years BP, which confirms and refines prior age estimates for the…
Evidence for meltwater drainage via the St. Lawrence River Valley in marine cores from the Laurentian Channel at the time of the Younger Dryas
- Environmental Science, Geography
- 2015
Timing and duration of North American glacial lake discharges and the Younger Dryas climate reversal
- Environmental Science, GeographyQuaternary Research
- 2011
Geochemical proxies of North American freshwater routing during the Younger Dryas cold event
- Environmental Science, GeographyProceedings of the National Academy of Sciences
- 2007
The Younger Dryas cold interval represents a time when much of the Northern Hemisphere cooled from ≈12.9 to 11.5 kiloyears B.P. The cause of this event, which has long been viewed as the canonical…
Gradual demise of a thin southern Laurentide ice sheet recorded by Mississippi drainage
- Environmental Science, GeographyNature
- 2013
Four reconstructions of North American deglacial ice-sheet history are tested by quantitatively connecting them to high-resolution oxygen isotope (δ18O) records from the Gulf of Mexico using a water mixing model, suggesting that modelling based on ice physics may be the best way of matching isotopic records while also sequestering enough water in the North American ice sheets to match the observed LGM sea level fall.