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The Younger Dryas impact hypothesis: a critical review
Quaternary Science Reviews, 2014The Younger Dryas impact hypothesis suggests that multiple extraterrestrial airbursts or impacts resulted in the Younger Dryas cooling, extensive wildfires, megafaunal extinctions and changes in human population. After the hypothesis was first published in 2007, it gained much criticism, as the evidence presented was either not indicative of an ...
Wim Hoek, Gill Pennock, M R Drury
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The Atmosphere During the Younger Dryas
Science, 1993One of the most dramatic climate change events observed in marine and ice core records is the Younger Dryas, a return to near-glacial conditions that punctuated the last deglaciation. High-resolution, continuous glaciochemical records, newly retrieved from central Greenland, record the chemical composition of the arctic atmosphere at this time.
Mayewski, Paul A. +7 more
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Science, 2008
Determining the geographical extent of a 1300-year cold event that occurred just before the current warm period requires accurate chronologies.
Thomas V. Lowell, Meredith A. Kelly
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Determining the geographical extent of a 1300-year cold event that occurred just before the current warm period requires accurate chronologies.
Thomas V. Lowell, Meredith A. Kelly
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1993
Probably the best documented climate event in which ice played a major role is the Younger Dryas. This event interrupted warming over the North Atlantic and surrounding regions during the last termination for a period of about 1000y. Broecker and colleagues suggest that the event was due to a temporary weakening or cessation of the overturning ...
Daniel G. Wright, Thomas F. Stocker
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Probably the best documented climate event in which ice played a major role is the Younger Dryas. This event interrupted warming over the North Atlantic and surrounding regions during the last termination for a period of about 1000y. Broecker and colleagues suggest that the event was due to a temporary weakening or cessation of the overturning ...
Daniel G. Wright, Thomas F. Stocker
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Geologiska Föreningen i Stockholm Förhandlingar, 1970
Abstract The present author thinks that the Younger Dryas Stadial include three colder phases separated by two warmer intervals. In Sweden and Finland there are three terminal moraine zones which should be correlated mutually. However, different opinions about this question have been expressed.
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Abstract The present author thinks that the Younger Dryas Stadial include three colder phases separated by two warmer intervals. In Sweden and Finland there are three terminal moraine zones which should be correlated mutually. However, different opinions about this question have been expressed.
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Quaternary Science Reviews, 1989
Abstract An energy balance climate model (EBCM) having land-sea, surface-air and latitudinal resolution, and which simulates the seasonal growth and decay of sea ice in terms of a number of explicit physical processes, is used to test the following hypotheses for the cause of the Younger Dryas cold episode: (1) a low salinity meltwater lens from ...
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Abstract An energy balance climate model (EBCM) having land-sea, surface-air and latitudinal resolution, and which simulates the seasonal growth and decay of sea ice in terms of a number of explicit physical processes, is used to test the following hypotheses for the cause of the Younger Dryas cold episode: (1) a low salinity meltwater lens from ...
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A Possible Younger Dryas Record in Southeastern Alaska
Science, 1990A stratigraphic record of climatic cooling equal in timing and severity to the Younger Dryas event of the North Atlantic region has been obtained from lacustrine sediments in the Glacier Bay area of southeastern Alaska. Fossil pollen show that a late Wisconsin pine parkland was replaced about 10,800 years ago by shrub- and herb-dominated tundra, which ...
D R, Engstrom, B C, Hansen, H E, Wright
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Was the Younger Dryas Triggered by a Flood?
Science, 2006Draining of a huge lake into the Northern Atlantic may have triggered a cold period ~12,900 years ago. The route taken by the flood waters remains unknown.
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Nanodiamonds in the Younger Dryas Boundary Sediment Layer
Science, 2009We report abundant nanodiamonds in sediments dating to 12.9 ± 0.1 thousand calendar years before the present at multiple locations across North America. Selected area electron diffraction patterns reveal two diamond allotropes in this boundary layer but not above or below that interval. Cubic diamonds form under high temperature-pressure regimes, and n-
D J, Kennett +8 more
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