The isotropic climatic records in the Alleroed-B{o}lling-Younger Dryas and post-Younger Dryas events
Journal Article
·
· Global Biogeochemical Cycles
- California Institute of Technology, Pasadena, CA (United States)
This study compares isotope records of late glacial period climates from Greenland and Alaska. The isotopic composition of dated Alaskan wood samples was determined and compared to isotope data from the Greenland ice cap, pelagic foraminifera, and German pine trees. A time correspondence of large isotopic variations was observed, suggesting that the Allerod-Bolling and Younger Dryas events were widespread in the northern hemisphere, and not restricted to the North Atlantic region. In addition, data indicated that the Allerod-Bolling event was initiated by rapid cooling, and the Younger Dryas event by rapid warming in temperate zones. Consequently, isotopic oscillations recorded at Alaska and Greenland during the Glacial-Interglacial transition are not necessarily associated with temperature variations at those locations. 13 refs., 5 figs.
- OSTI ID:
- 244072
- Journal Information:
- Global Biogeochemical Cycles, Journal Name: Global Biogeochemical Cycles Journal Issue: 4 Vol. 9; ISSN 0886-6236; ISSN GBCYEP
- Country of Publication:
- United States
- Language:
- English
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