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Timing of the Younger Dryas event in East Africa from lake-level changes.

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Timing of the Younger Dryas event in East Africa from lake-level changes. / Roberts, N.; Taieb, M.; Barker, P. et al.
In: Nature, Vol. 366, No. 6451, 11.11.1993, p. 146-148.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Roberts, N, Taieb, M, Barker, P, Damnati, B, Icole, M & Williamson, D 1993, 'Timing of the Younger Dryas event in East Africa from lake-level changes.', Nature, vol. 366, no. 6451, pp. 146-148. https://doi.org/10.1038/366146a0

APA

Roberts, N., Taieb, M., Barker, P., Damnati, B., Icole, M., & Williamson, D. (1993). Timing of the Younger Dryas event in East Africa from lake-level changes. Nature, 366(6451), 146-148. https://doi.org/10.1038/366146a0

Vancouver

Roberts N, Taieb M, Barker P, Damnati B, Icole M, Williamson D. Timing of the Younger Dryas event in East Africa from lake-level changes. Nature. 1993 Nov 11;366(6451):146-148. doi: 10.1038/366146a0

Author

Roberts, N. ; Taieb, M. ; Barker, P. et al. / Timing of the Younger Dryas event in East Africa from lake-level changes. In: Nature. 1993 ; Vol. 366, No. 6451. pp. 146-148.

Bibtex

@article{06795a23122f479580728b5ab2de3db8,
title = "Timing of the Younger Dryas event in East Africa from lake-level changes.",
abstract = "THE last deglaciation was interrupted by an abrupt cooling event, the Younger Dryas, at 11,000& ndash;10,000 yr BP (uncalibrated radiocarbon timescale)1. Originally recognized in climate records from northwest Europe, the Younger Dryas has now been identified in marine and ice-core records worldwide2& ndash;6. In the tropics, a broadly contemporaneous change in climate is recorded by decreases in water levels and increased salinity of lakes7& ndash;9,14, indicating a period of arid climate caused by a reduction in ocean-to-land moisture flux. The exact timing of these changes in relation to the Younger Dryas event in high-latitude records has remained unclear, however. Here we present climate records based on analyses of diatom assemblages, geochemistry and magnetic mineralogy of radiocarbon-dated sequences of laminated lake sediments from Lake Magadi in the East African rift. These records provide a detailed record of climate change in lowland equatorial Africa throughout the last deglaciation (12,800& ndash;10,000 14C yr BP). We find that lake-level and humidity maxima coincide with the most rapid phases of ice melting in the Northern Hemisphere, and that the climate changes, including the Younger Dryas event, were synchronous at low and high latitudes. Thus, the effects of abrupt climate change appear to be felt at both high and low latitudes without a significant time lag.",
author = "N. Roberts and M. Taieb and P. Barker and B. Damnati and M. Icole and D. Williamson",
note = "Nov 11 Timing of the Younger Dryas event in East Africa from lake-level changes. Times Cited: 90",
year = "1993",
month = nov,
day = "11",
doi = "10.1038/366146a0",
language = "English",
volume = "366",
pages = "146--148",
journal = "Nature",
issn = "0028-0836",
publisher = "Nature Publishing Group",
number = "6451",

}

RIS

TY - JOUR

T1 - Timing of the Younger Dryas event in East Africa from lake-level changes.

AU - Roberts, N.

AU - Taieb, M.

AU - Barker, P.

AU - Damnati, B.

AU - Icole, M.

AU - Williamson, D.

N1 - Nov 11 Timing of the Younger Dryas event in East Africa from lake-level changes. Times Cited: 90

PY - 1993/11/11

Y1 - 1993/11/11

N2 - THE last deglaciation was interrupted by an abrupt cooling event, the Younger Dryas, at 11,000& ndash;10,000 yr BP (uncalibrated radiocarbon timescale)1. Originally recognized in climate records from northwest Europe, the Younger Dryas has now been identified in marine and ice-core records worldwide2& ndash;6. In the tropics, a broadly contemporaneous change in climate is recorded by decreases in water levels and increased salinity of lakes7& ndash;9,14, indicating a period of arid climate caused by a reduction in ocean-to-land moisture flux. The exact timing of these changes in relation to the Younger Dryas event in high-latitude records has remained unclear, however. Here we present climate records based on analyses of diatom assemblages, geochemistry and magnetic mineralogy of radiocarbon-dated sequences of laminated lake sediments from Lake Magadi in the East African rift. These records provide a detailed record of climate change in lowland equatorial Africa throughout the last deglaciation (12,800& ndash;10,000 14C yr BP). We find that lake-level and humidity maxima coincide with the most rapid phases of ice melting in the Northern Hemisphere, and that the climate changes, including the Younger Dryas event, were synchronous at low and high latitudes. Thus, the effects of abrupt climate change appear to be felt at both high and low latitudes without a significant time lag.

AB - THE last deglaciation was interrupted by an abrupt cooling event, the Younger Dryas, at 11,000& ndash;10,000 yr BP (uncalibrated radiocarbon timescale)1. Originally recognized in climate records from northwest Europe, the Younger Dryas has now been identified in marine and ice-core records worldwide2& ndash;6. In the tropics, a broadly contemporaneous change in climate is recorded by decreases in water levels and increased salinity of lakes7& ndash;9,14, indicating a period of arid climate caused by a reduction in ocean-to-land moisture flux. The exact timing of these changes in relation to the Younger Dryas event in high-latitude records has remained unclear, however. Here we present climate records based on analyses of diatom assemblages, geochemistry and magnetic mineralogy of radiocarbon-dated sequences of laminated lake sediments from Lake Magadi in the East African rift. These records provide a detailed record of climate change in lowland equatorial Africa throughout the last deglaciation (12,800& ndash;10,000 14C yr BP). We find that lake-level and humidity maxima coincide with the most rapid phases of ice melting in the Northern Hemisphere, and that the climate changes, including the Younger Dryas event, were synchronous at low and high latitudes. Thus, the effects of abrupt climate change appear to be felt at both high and low latitudes without a significant time lag.

U2 - 10.1038/366146a0

DO - 10.1038/366146a0

M3 - Journal article

VL - 366

SP - 146

EP - 148

JO - Nature

JF - Nature

SN - 0028-0836

IS - 6451

ER -