noaa-ocean-27030 Eastern Atlantic Dust Flux and Geochemistry Data over the past 240,000 years Skonieczny, C.; McGee, D.; Winckler, G.; Bory, A.; Bradtmiller, L.I.; Kinsley, C.W.; Polissar, P.J.; De Pol-Holz, R.; Rossignol, L.; Malaizé, B. Eastern Atlantic Dust Flux and Geochemistry Data over the past 240,000 years 2019-06-20 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/27030 Investigator C. Skonieczny Investigator D. McGee Investigator G. Winckler Investigator A. Bory Investigator L.I. Bradtmiller Investigator C.W. Kinsley Investigator P.J. Polissar Investigator R. De Pol-Holz Investigator L. Rossignol Investigator B. Malaizé earth science paleoclimate paleocean geochemistry earth science paleoclimate paleocean lithology geoscientificInformation 240570 cal yr BP 380 cal yr BP Complete 18.085 18.085 -21.153197 -21.153197 -3085 -3085 Ocean Atlantic Ocean North Atlantic Ocean MD03-2705>LATITUDE 18.085>LONGITUDE -21.153197 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Skonieczny, C., D. McGee, G. Winckler, A. Bory, L.I. Bradtmiller, C.W. Kinsley, P.J. Polissar, R. De Pol-Holz, L. Rossignol, and B. Malaizé 2019 Science Advances 5 1 EAAV1887 10.1126/sciadv.aav1887

Reconstructions of past Saharan dust deposition in marine sediments provide foundational records of North African climate over time scales of 103 to 106 years. Previous dust records show primarily glacial-interglacial variability in the Pleistocene, in contrast to other monsoon records showing strong precessional variability. Here, we present the first Saharan dust record spanning multiple glacial cycles obtained using 230Th normalization, an improved method of calculating fluxes. Contrary to previous data, our record from the West African margin demonstrates high correlation with summer insolation and limited glacial-interglacial changes, indicating coherent variability in the African monsoon belt throughout the late Pleistocene. Our results demonstrate that low-latitude Saharan dust emissions do not vary synchronously with high- and mid-latitude dust emissions, and they call into question the use of existing Plio-Pleistocene dust records to investigate links between climate and hominid evolution.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/skonieczny2019/skonieczny2019-md03-2705.txt NOAA Template File; MD03-2705 Dust Flux and Geochemistry Data USA/NOAA DIF Version 9.8.4 2019-06-21 2019-06-21