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Science 14 November 1997:
Vol. 278. no. 5341, pp. 1257 - 1266
DOI: 10.1126/science.278.5341.1257
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Research Articles

A Pervasive Millennial-Scale Cycle in North Atlantic Holocene and Glacial Climates

Gerard Bond, * William Showers, Maziet Cheseby, Rusty Lotti, Peter Almasi, Peter deMenocal, Paul Priore, Heidi Cullen, Irka Hajdas, Georges Bonani

Evidence from North Atlantic deep sea cores reveals that abrupt shifts punctuated what is conventionally thought to have been a relatively stable Holocene climate. During each of these episodes, cool, ice-bearing waters from north of Iceland were advected as far south as the latitude of Britain. At about the same times, the atmospheric circulation above Greenland changed abruptly. Pacings of the Holocene events and of abrupt climate shifts during the last glaciation are statistically the same; together, they make up a series of climate shifts with a cyclicity close to 1470 ± 500 years. The Holocene events, therefore, appear to be the most recent manifestation of a pervasive millennial-scale climate cycle operating independently of the glacial-interglacial climate state. Amplification of the cycle during the last glaciation may have been linked to the North Atlantic's thermohaline circulation.

G. Bond, M. Cheseby, R. Lotti, P. Almasi, P. deMenocal, P. Priore, and H. Cullen are at the Lamont-Doherty Earth Observatory of Columbia University, Route 9W, Palisades, NY 10964, USA. W. Showers is in the Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, 1125 Jordan Hall, Raleigh, NC 27695, USA. I. Hajdas and G. Bonani are in the AMS 14C Lab, ITP Eidgenössische Technische Hochschule (ETH) Honeggerberg, CH-8093 Zurich, Switzerland.
*   To whom correspondence should be addressed. E-mail: gcb{at}lamont.ldgo.columbia.edu

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The Holocene 12, 619-627
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The Holocene 12, 459-468
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The Holocene 12, 49-58
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The Holocene 11, 215-229
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The Holocene 11, 101-109
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Geology 29, 83-86
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Geology 28, 807-810
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E. Bard, F. Rostek, J.-L. Turon, and S. Gendreau (2000)
Science 289, 1321-1324
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P. deMenocal, J. Ortiz, T. Guilderson, and M. Sarnthein (2000)
Science 288, 2198-2202
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P. D. M. Hughes, P. D. M. Hughes, D. Mauquoy, K. E. Barber, and P. G. Langdon (2000)
The Holocene 10, 465-479
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Evidence of 550-year and 1000-year cyclicities in North Atlantic circulation patterns during the Holocene.
M. R. Chapman, M. R. Chapman, and N. J. Shackleton (2000)
The Holocene 10, 287-291
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F. A. Street-Perrott, F. A. Street-Perrott, J. A. Holmes, M. P. Waller, M. J. Allen, N. G. H. Barber, P. A. Fothergill, D. D. Harkness, M. Ivanovich, D. Kroon, et al. (2000)
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