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Science 5 September 2003:
Vol. 301. no. 5638, pp. 1365 - 1367
DOI: 10.1126/science.1086227
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Reports

Indian Ocean Climate and an Absolute Chronology over Dansgaard/Oeschger Events 9 to 13

Stephen J. Burns,1 Dominik Fleitmann,2 Albert Matter,2 Jan Kramers,2 Abdulkarim A. Al-Subbary3

Oxygen-isotope ratios of a stalagmite from Socotra Island in the Indian Ocean provide a record of changes in monsoon precipitation and climate for the time period from 42 to 55 thousand years before the present. The pattern of precipitation bears a striking resemblance to the oxygen-isotope record from Greenland ice cores, with increased tropical precipitation associated with warm periods in the high northern latitudes. The largest change, at the onset of interstadial 12, occurred very rapidly, in about 25 years. The chronology of the events found in our record requires a reevaluation of previously published time scales for climate events during this period.

1 Department of Geosciences, University of Massachusetts, Amherst MA, USA.
2 Institute of Geological Sciences, University of Bern, Bern, Switzerland.
3 Department of Earth and Environmental Science, Faculty of Science, University of Sana'a, Republic of Yemen.

To whom correspondence should be addressed. E-mail: sburns{at}geo.umass.edu

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Science. ISSN 0036-8075 (print), 1095-9203 (online)