World Data Center for Paleoclimatology, Boulder
                                 and
                    NOAA Paleoclimatology Program

NOTE: PLEASE CITE ORIGINAL REFERENCE WHEN USING THIS DATA!!!!!

NAME OF DATA SET: Cenozoic Global Deep-Sea Stable Isotope Data LAST UPDATE: 10/2008 (Original receipt by WDC Paleo) CONTRIBUTOR: Jim Zachos, University of California, Santa Cruz IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2008-098

WDC PALEO CONTRIBUTION SERIES CITATION: Zachos, J., et al. 2008. Cenozoic Global Deep-Sea Stable Isotope Data. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2008-098. NOAA/NCDC Paleoclimatology Program, Boulder CO, USA.

ORIGINAL REFERENCE: Zachos, J., M. Pagani, L. Sloan, E. Thomas, and K. Billups. 2001. Trends, Rhythms, and Aberrations in Global Climate 65 Ma to Present. Science, Vol. 292, No. 5517, pp. 686-693, 27 April 2001. DOI: 10.1126/science.1059412

ABSTRACT: Since 65 million years ago (Ma), Earth's climate has undergone a significant and complex evolution, the finer details of which are now coming to light through investigations of deep-sea sediment cores. This evolution includes gradual trends of warming and cooling driven by tectonic processes on time scales of 10e5 to 10e7 years, rhythmic or periodic cycles driven by orbital processes with 10e4- to 10e6-year cyclicity, and rare rapid aberrant shifts and extreme climate transients with durations of 10e3 to 10e5 years. Here, recent progress in defining the evolution of global climate over the Cenozoic Era is reviewed. We focus primarily on the periodic and anomalous components of variability over the early portion of this era, as constrained by the latest generation of deep-sea isotope records. We also consider how this improved perspective has led to the recognition of previously unforeseen mechanisms for altering climate.

ADDITIONAL REFERENCE: Jansen, E., J. Overpeck, K.R. Briffa, J.-C. Duplessy, F. Joos, V. Masson-Delmotte, D. Olago, B. Otto-Bliesner, W.R. Peltier, S. Rahmstorf, R. Ramesh, D. Raynaud, D. Rind, O. Solomina, R. Villalba and D. Zhang, 2007: Palaeoclimate. In: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change [Solomon, S., D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt, M. Tignor and H.L. Miller (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.

GEOGRAPHIC REGION: Global PERIOD OF RECORD: Cenozoic Era, 65Ma - present FUNDING SOURCE: US National Science Foundation grant EAR-9814883.

DESCRIPTION: Global compilation of foraminiferal stable isotope data (d18O and d13C) from 40 DSDP and ODP sites, covering the last 65 million years.

Foraminifer Genus codes: CIB=Cibicidoides (+0.64 per mil correction applied to d18O values) NUT=Nuttallides (+0.45 per mil correction applied to d18O values) PWUELL=Planulina wuellerstorfi GAVNUT=Gavelinella + Nuttallides CIBKULL=Cibicides kullenbergi GYROIDIN=Gyroidinoides

The d18O 5-point running mean data have been plotted in figure 6.1 (middle) of Jensen et al. 2007, IPCC AR4 WG1, Chapter 6, Palaeoclimate.

DATA: Zachos et al. 2001 Cenozoic Global Deep-Sea Stable Isotope Data

• O-isotope Adustments: CIB (+0.64), NUT (+0.45)

(see Shackleton et al., 1984; Shackleton & Hall, 1997)

• • 5 Point running average
    • see Zachos et al., 2001; supplemental data