Oxygen isotopes in fresh water biogenic opal - Northeastern US Allerod-Younger Dryas temperature shift

Publication Status is "Submitted" Or "In Press: 
LDEO Publication: 
Publication Type: 
Year of Publication: 
1998
Editor: 
Journal Title: 
Geophysical Research Letters
Journal Date: 
Jun 1
Place Published: 
Tertiary Title: 
Volume: 
25
Issue: 
11
Pages: 
1935-1938
Section / Start page: 
Publisher: 
ISBN Number: 
0094-8276
ISSN Number: 
Edition: 
Short Title: 
Accession Number: 
ISI:000074033800045
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Call Number: 
Abstract: 

The first oxygen isotope analysis of biogenic opal from lake sediments, from the Allerod/Younger Dryas transition in a core from Linsley Pond, Connecticut, gives an average estimate of a 6 degrees C drop in temperature during the Younger Dryas. This shift represents temperatures during the bloom season, and may be less than the winter temperature drop. The sharp transition itself, with a duration of about 200 years, suggests that the temperature decrease may have been as large as 12 degrees C. Previous estimates of the Allerod/Younger Dryas temperature shifts are controversial, and range from 3-20 degrees C, suggesting that further interdisciplinary research on the same samples is warranted.

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Zr962Times Cited:20Cited References Count:23

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