noaa-ocean-20507 North Atlantic 3.2MYr Stable Isotope and Physical Properties Data Hodell, D.A.; Channell, J.E.T. North Atlantic 3.2MYr Stable Isotope and Physical Properties Data 2016-09-13 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/20507 Investigator D.A. Hodell Investigator J.E.T. Channell earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,C,Type. H=hydraulic piston corer earth science paleoclimate paleoceanography delta 18O,benthic foraminifer,null,per mil,null,paleoceanography,null,null,N,benthic minus bulk carbonate earth science paleoclimate paleoceanography depth,null,null,meter,null,paleoceanography,composited,null,N,null earth science paleoclimate paleoceanography depth,null,null,meter,null,paleoceanography,composited,null,N,revised meters composite depth (center) earth science paleoclimate paleoceanography age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,C,Hole earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,C,Core earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,N,Site earth science paleoclimate paleoceanography age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,correlation to LR04 (Lisiecki and Raymo 2005) earth science paleoclimate paleoceanography delta 13C,Cibicidoides sp.,null,per mil VPDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 18O,carbonate,null,per mil VPDB,null,paleoceanography,null,null,N,bulk carbonate earth science paleoclimate paleoceanography gamma radiation,sediment,null,count,null,paleoceanography,corrected,null,N,natural gamma radiation earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,C,reference earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,C,Section earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,C,chronology used earth science paleoclimate paleoceanography age,null,null,calendar kiloyear before present,null,paleoceanography,smoothed,null,N,interpolated to 0.5 ka earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,C,Species present earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,C,Type. H=hydraulic piston corer earth science paleoclimate paleoceanography delta 18O,Cibicidoides wuellerstorfi,null,per mil VPDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 13C,Cibicidoides wuellerstorfi,null,per mil VPDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography notes,null,null,null,null,paleoceanography,null,null,C,Type of control point earth science paleoclimate paleoceanography depth,null,null,centimeter,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography depth,null,null,meter,null,paleoceanography,null,null,N,mbsf earth science paleoclimate paleoceanography depth,null,null,meter,null,paleoceanography,composited,null,N,revised meters composite depth earth science paleoclimate paleoceanography delta 18O,Cibicidoides sp.,null,per mil VPDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleocean oxygen isotopes earth science paleoclimate paleocean carbon isotopes earth science paleoclimate paleocean physical properties earth science paleoclimate paleocean age control geoscientificInformation 3220000 cal yr BP 0 cal yr BP Complete 49.8778 57.517 -33.5297 -15.8665 -3883 -1145 Ocean Atlantic Ocean North Atlantic Ocean U1308>LATITUDE 49.8778>LONGITUDE -24.2383 Ocean Atlantic Ocean North Atlantic Ocean U1304>LATITUDE 53.0567>LONGITUDE -33.5297 Ocean Atlantic Ocean North Atlantic Ocean ODP 982>LATITUDE 57.517>LONGITUDE -15.8665 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 David A. Hodell and James E.T. Channell 2016 Climate of the Past 12 1805-1828 10.5194/cp-12-1805-2016 http://www.clim-past.net/12/1805/2016/

We present a 3.2 Myr record of stable isotopes and physical properties at IODP Site U1308 (reoccupation of DSDP Site 609) located within the ice-rafted detritus (IRD) belt of the North Atlantic. We compare the isotope and lithological proxies at Site U1308 with other North Atlantic records (e.g., sites 982, 607/U1313, and U1304) to reconstruct the history of orbital and millennial-scale climate variability during the Quaternary. The Site U1308 record documents a progressive increase in the intensity of Northern Hemisphere glacial-interglacial cycles during the late Pliocene and Quaternary, with mode transitions at ~ 2.7, 1.5, 0.9, and 0.65 Ma. These transitions mark times of change in the growth and stability of Northern Hemisphere ice sheets. They also coincide with increases in vertical carbon isotope gradients between the intermediate and deep ocean, suggesting changes in deep carbon storage and atmospheric CO2. Orbital and millennial climate variability co-evolved during the Quaternary such that the trend towards larger and thicker ice sheets was accompanied by changes in the style, frequency, and intensity of millennial-scale variability. This co-evolution may be important for explaining the observed patterns of Quaternary climate change. STUDY NOTES: Foraminiferal stable isotope (d18O and d13C) and physical properties (natural gamma radiation) data from North Atlantic sediment cores for the past 3.2 million years

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hodell2016/hodell2016u1308bulk18o.txt Data File; U1308 Bulk d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hodell2016/hodell2016u1308cib-iso.txt Data File; U1308 Cibicidoides d18O and d13C Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hodell2016/hodell2016u1304ngr.txt Data File; U1304 Natural Gamma Radiation Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hodell2016/hodell2016u1308age.txt Data File; U1308 Age Model and Tie Points GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hodell2016/hodell2016u1304cib-iso.txt Data File; U1304 Cibicidoides wuellerstorfi d18O and d13C Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hodell2016/hodell2016odp982d18o.txt Data File; ODP982 Cibicidoides and Bulk Carbonate d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hodell2016/hodell2016u1308benth-bulk.txt Data File; U1308 Benthic d18O minus bulk d18O USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11