Northern Red Sea (GeoB5836-2) Alkenone SST and High Resolution Sediment Data Arz, H.W.; Lamy, F.; Pätzold, J. Arz, H.W. Lamy, F. Pätzold, J. earth science/paleoclimate/paleoceanography (identified foraminifer,sediment,null,count,null,paleoceanography,null,null,N,Bulimina marginata) earth science/paleoclimate/paleoceanography (manganese,sediment,null,count per second,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (age,null,null,calendar year before present,null,paleoceanography,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoceanography (sea surface temperature,alkenone unsaturation index,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 18O,Globigerinoides ruber white,null,per mil PDB,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (grayscale,sediment,null,dimensionless,null,paleoceanography,null,null,N,0 - 255 scale) earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (GeoB5836-2>LATITUDE 26.22>LONGITUDE 35.37) Partly laminated sediments were sampled from the brine-filled, anoxic Shaban Deep basin in the northern Red Sea. At about 4200 cal yr BP more than two millennia of anoxic sedimentation is replaced by a sub-oxic facies strongly suggesting the episodic absence of the brine. At the same time stable oxygen isotopes from surface dwelling foraminifera show a sharp increase (within less than 100 yr) pointing to a strong positive salinity anomaly at the sea surface. This major evaporation event significantly enhanced the renewal of deep water and the subsequent ventilation of the small Shaban Deep basin. The timing and strength of the reconstructed environmental changes around 4200 cal yr BP suggest that this event is the regional expression of a major drought event, which is widely observed in the neighboring regions, and which strongly affected Middle East agricultural civilizations. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Arz, H.W. Investigator : Lamy, F. Investigator : Pätzold, J. 2006-07-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/5585 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/gb5836-2-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/arz2006 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/gb5836-2-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/arz2006 English https://www.ncdc.noaa.gov/paleo/study/5585 https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/gb5836-2-tab.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/arz2006 Arz, H.W., F. Lamy, and J. Pätzold. 2006. A pronounced dry event recorded around 4.2 ka in brine sediments from the northern Red Sea. Quaternary Research, 66(3), 432-441. START YEAR: 5907 14C yr BP * END YEAR: 3943 14C yr BP 35.37 26.22 35.37 26.22