Pliocene Oxygen Isotope Record, ODP 851
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World Data Center for Paleoclimatology, Boulder
and
NOAA Paleoclimatology Program
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NOTE: PLEASE CITE CONTRIBUTORS WHEN USING THIS DATA!!!!!
NAME OF DATA SET: Pliocene Oxygen Isotope Record, ODP 851
LAST UPDATE: 2/2007 (Original Receipt by WDCA Paleo)
CONTRIBUTOR: Mudelsee, M.
IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2007-022
SUGGESTED DATA CITATION: Mudelsee and Raymo, 2007,
Pliocene Oxygen Isotope Record, ODP 851
IGBP PAGES/World Data Center for Paleoclimatology
Data Contribution Series #2007-022.
NOAA/NGDC Paleoclimatology Program, Boulder CO, USA.
ORIGINAL REFERENCE(S) (OXYGEN ISOTOPE DATA):
Cannariato, K. G., and A. C. Ravelo (1997),
Pliocene-Pleistocene evolution of eastern tropical Pacific surface water
circulation and thermocline depth, Paleoceanography, 12, 805-820.
ORIGINAL REFERENCE (TIMESCALE):
See ORIGINAL REFERENCE(S) (OXYGEN ISOTOPE DATA).
GEOGRAPHIC REGION: Pacific Ocean
PERIOD OF RECORD: 2 Myr to 4 Myr before the present
DESCRIPTION:
Oxygen isotope record, adjusted to
seawater d18O level.
See ORIGINAL REFERENCE(S) (OXYGEN ISOTOPE DATA) and
Mudelsee, M., and M.E. Raymo, 2005. Slow dynamics of the
Northern Hemisphere Glaciation. Paleoceanography 20, 4, PA4022
(doi: 10.1029/2005PA001153).
CORE NAME: ODP 851
LOCATION LATITUDE: 2 deg 46' S
LOCATION LONGITUDE: 110 deg 34' W
WATER DEPTH: 3760 m
FORAMINIFERA: N. numerosa, N. dutertrei
HABITAT: planktonic
ADJUSTMENT: original d18O - 0.325 per mil (N. humerosa)
NUMBER OF DATA POINTS: 299
ABSTRACT:
Unraveling the dynamics of the Northern Hemisphere Glaciation (NHG)
in the Pliocene is a key step toward a quantitative theory of the
climate transition from a greenhouse to an icehouse world. Extracting
the ice-volume signal from marine oxygen isotope (d18O) records
corrupted with 'temperature noise' can be accomplished using
statistical time series analysis. We use 45 d18O records from
benthic and planktonic foraminifera and globally distributed sites
to reconstruct the dynamics of NHG initiation. We compare d18O amplitudes
with those of temperature proxy records and estimate a global ice-volume
related increase of 0.4 per mil, equivalent to an overall sea-level
lowering of 43 meters. We find the NHG started significantly earlier
than previously assumed, as early as 3.6 Myr, and ended at 2.4 Myr.
This long-term increase points to slow, tectonic forcing such as closing of
ocean gateways or mountain building, as the root cause of the NHG.
(Mudelsee, M., and M.E. Raymo, 2005.
Paleoceanography 20, 4, PA4022 (doi: 10.1029/2005PA001153).)
FUNDING SOURCE: Deutsche Forschungsgemeinschaft (DFG),
Bonn, Germany (MU 1595/2).
CONTACT:
Dr. Manfred Mudelsee
Climate Risk Analysis
Wasserweg 2
06114 Halle (S)
Germany
Telephone: +49 (0)345 5323860
Email: mudelsee@climate-risk-analysis.com
URL: http://www.climate-risk-analysis.com
DATA:
Core
Depth Age d18O
(m) (kyr) (per mil)
36.70 1996.4 -4.300000E-01
37.08 2015.1 -2.300000E-01
37.18 2020.0 -3.000000E-01
37.29 2022.7 -6.100000E-01
37.40 2025.4 -4.900000E-01
37.53 2028.6 -2.700000E-01
37.67 2032.0 -3.000000E-02
37.81 2036.8 1.500000E-01
38.05 2045.1 1.800000E-01
38.15 2048.6 2.500000E-01
38.25 2052.0 2.300000E-01
38.33 2072.0 -4.000000E-02
38.41 2077.1 -1.600000E-01
38.48 2081.6 -1.600000E-01
38.56 2086.7 -3.800000E-01
38.63 2091.2 8.000000E-02
38.70 2095.7 -1.000000E-02
38.77 2100.2 1.000000E-02
38.83 2104.0 4.000000E-02
39.00 2116.0 -2.000000E-02
39.08 2121.9 -1.900000E-01
39.17 2128.6 -5.000000E-02
39.27 2136.0 -5.700000E-01
39.47 2146.7 6.000000E-02
39.57 2152.0 1.800000E-01
40.10 2172.0 -5.900000E-01
40.12 2178.3 -7.000000E-01
40.40 2196.0 -4.000000E-02
40.50 2200.6 -1.290000E+00
40.60 2205.1 -6.800000E-01
40.80 2214.2 -8.100000E-01
40.92 2219.7 -6.000000E-01
41.04 2225.2 -9.600000E-01
41.11 2228.4 -7.900000E-01
41.35 2238.4 -3.200000E-01
41.43 2241.6 -4.600000E-01
41.51 2244.8 -6.100000E-01
41.59 2248.0 -4.800000E-01
41.67 2254.9 -5.600000E-01
41.87 2272.0 -7.200000E-01
42.02 2279.6 -4.600000E-01
42.10 2283.7 -2.800000E-01
42.18 2287.7 -6.400000E-01
42.32 2294.8 -7.000000E-02
43.28 2343.4 -1.800000E-01
43.37 2348.0 -4.700000E-01
43.52 2353.4 -1.700000E-01
43.67 2358.9 -4.300000E-01
43.74 2361.4 -9.900000E-01
44.89 2403.2 -5.828974E-01
44.96 2405.8 -4.595803E-01
45.06 2409.5 -6.208569E-01
45.29 2417.7 -5.186804E-01
45.59 2428.6 -6.601567E-01
45.65 2430.8 -6.688957E-01
45.71 2433.0 -2.755893E-01
45.87 2438.6 -6.282360E-01
45.98 2442.7 -9.499046E-01
46.12 2448.0 -8.736843E-01
46.24 2464.0 -7.598855E-01
46.38 2473.1 -8.659727E-01
46.42 2476.2 -7.493449E-01
46.48 2480.0 -6.766500E-01
46.53 2483.4 -4.043061E-01
46.61 2488.2 -4.491043E-01
46.70 2494.2 -7.687799E-01
46.82 2501.6 -4.193343E-01
47.01 2514.3 -6.533140E-01
47.09 2519.3 -3.018480E-01
47.16 2524.0 -4.114938E-01
47.25 2528.5 -4.329673E-01
47.34 2533.2 -5.355125E-01
47.45 2538.9 -8.129081E-01
47.57 2545.1 -6.419379E-01
47.68 2550.8 -5.707233E-01
47.78 2556.0 -1.091163E+00
47.95 2563.5 -7.864203E-01
48.05 2568.0 -9.291006E-01
48.16 2572.8 -1.098357E+00
48.27 2577.7 -1.131335E+00
48.37 2582.2 -1.151842E+00
48.47 2586.6 -1.145240E+00
48.56 2590.6 -1.029465E+00
48.65 2594.6 -7.710115E-01
48.76 2599.3 -5.717933E-01
48.86 2604.0 -7.479529E-01
48.98 2611.5 -8.041919E-01
49.08 2618.1 -1.122152E+00
49.18 2624.6 -1.632305E+00
49.26 2629.8 -1.354109E+00
49.35 2635.7 -9.959317E-01
49.44 2641.5 -1.342841E+00
49.55 2648.7 -1.198816E+00
49.66 2656.0 -1.062313E+00
49.77 2663.0 -1.100202E+00
50.06 2680.6 -1.690260E+00
50.16 2685.5 -1.315589E+00
50.26 2690.9 -1.150041E+00
50.36 2695.8 -1.326421E+00
50.47 2701.7 -9.330563E-01
50.57 2706.8 -1.129591E+00
50.67 2712.0 -1.023286E+00
50.76 2716.6 -9.198117E-01
50.86 2721.7 -1.244037E+00
50.96 2726.9 -1.164010E+00
51.06 2732.0 -1.468413E+00
51.16 2736.4 -8.368171E-01
51.25 2740.4 -8.529793E-01
51.35 2744.8 -7.271367E-01
51.46 2749.7 -1.369189E+00
52.15 2780.2 -1.240673E+00
52.76 2807.2 -1.424991E+00
52.85 2811.1 -6.910221E-01
53.17 2823.0 -1.001094E+00
54.64 2907.7 -1.147411E+00
55.00 2921.6 -9.568283E-01
55.16 2927.8 -1.234316E+00
55.30 2933.3 -1.411658E+00
55.37 2936.0 -1.359515E+00
55.52 2938.7 -1.344641E+00
55.67 2941.5 -1.305393E+00
55.88 2945.3 -1.403433E+00
56.08 2948.9 -1.867548E+00
56.25 2952.0 -1.900306E+00
56.34 2967.9 -1.643185E+00
56.40 2980.0 -1.767918E+00
56.46 2983.8 -1.604851E+00
56.50 2986.8 -1.279471E+00
56.54 2989.8 -1.451036E+00
56.63 2995.9 -1.603764E+00
56.68 2999.4 -1.821256E+00
56.75 3004.1 -1.708556E+00
56.80 3008.1 -1.504000E+00
56.92 3016.3 -1.294879E+00
57.03 3024.0 -1.437499E+00
57.25 3029.5 -1.325884E+00
57.26 3029.9 -1.460833E+00
57.38 3033.0 -1.570073E+00
57.47 3035.4 -1.719798E+00
57.56 3037.7 -1.750610E+00
57.65 3040.0 -1.358145E+00
57.73 3045.3 -1.226057E+00
57.83 3052.0 -1.637470E+00
58.12 3071.2 -2.001996E+00
58.22 3077.8 -1.833035E+00
58.30 3083.1 -2.083508E+00
58.42 3091.1 -1.805727E+00
58.51 3097.0 -1.349289E+00
58.59 3102.3 -2.014028E+00
58.68 3108.3 -1.719194E+00
58.78 3114.9 -1.774079E+00
58.87 3120.8 -1.658730E+00
58.96 3126.8 -1.461191E+00
59.05 3132.7 -1.256062E+00
59.14 3138.7 -1.357698E+00
59.22 3144.0 -1.450569E+00
59.32 3148.7 -1.249823E+00
59.44 3154.4 -1.345830E+00
59.56 3160.0 -2.051023E+00
59.70 3166.9 -1.970313E+00
59.80 3171.8 -1.500549E+00
59.95 3179.1 -1.712081E+00
60.05 3184.0 -1.359879E+00
60.15 3189.8 -1.252181E+00
60.25 3195.5 -1.434333E+00
60.36 3201.9 -1.227972E+00
60.48 3208.8 -1.114540E+00
60.62 3216.9 -7.671351E-01
60.75 3224.4 -1.329692E+00
60.86 3230.7 -9.365909E-01
60.96 3236.5 -9.837219E-01
61.04 3241.1 -1.187240E+00
61.11 3245.2 -6.347134E-01
61.19 3249.8 -1.033369E+00
61.27 3254.4 -9.176681E-01
61.35 3259.0 -1.081134E+00
61.44 3264.2 -9.114095E-01
61.54 3270.0 -1.052569E+00
61.64 3275.8 -6.114215E-01
61.73 3281.0 -8.418727E-01
61.83 3286.7 -8.191253E-01
61.91 3291.3 -6.273096E-01
61.99 3296.0 -7.540671E-01
62.06 3300.0 -3.787144E-01
62.14 3303.5 -8.077904E-01
62.23 3307.4 -5.556815E-01
62.34 3312.3 -5.455134E-01
62.51 3319.7 -7.708287E-01
62.71 3328.4 -3.849370E-01
62.88 3335.9 -6.107965E-01
62.96 3339.4 -7.555461E-01
63.08 3344.6 -6.456828E-01
63.15 3347.7 -6.817538E-01
63.22 3350.8 -7.640864E-01
63.27 3352.9 -8.195900E-01
63.31 3354.7 -7.216009E-01
63.43 3359.9 -3.861178E-01
63.53 3364.3 -8.947927E-01
63.66 3370.0 -7.061689E-01
63.81 3376.6 -5.259369E-01
63.95 3382.7 -7.226832E-01
64.07 3387.9 -9.395572E-01
64.20 3393.6 -7.755774E-01
64.28 3397.1 -7.411615E-01
64.37 3400.9 -1.020435E+00
64.44 3404.0 -9.808973E-01
64.54 3409.2 -1.086767E+00
64.73 3418.9 -1.311033E+00
64.81 3423.0 -1.261178E+00
64.91 3428.1 -1.738426E+00
65.00 3432.6 -1.224610E+00
65.30 3447.6 -1.212131E+00
65.55 3460.6 -1.019488E+00
65.65 3465.7 -1.228014E+00
65.75 3470.8 -7.482398E-01
65.85 3475.9 -1.327646E+00
65.93 3479.9 -1.326421E+00
66.01 3484.0 -9.834351E-01
66.08 3488.0 -1.021170E+00
66.16 3492.7 -1.305676E+00
66.25 3497.8 -1.164598E+00
66.35 3503.6 -1.009777E+00
66.46 3510.0 -1.102870E+00
66.58 3516.9 -1.336357E+00
66.69 3523.2 -1.054963E+00
66.81 3530.2 -1.144432E+00
66.90 3535.3 -1.258049E+00
67.05 3544.0 -1.627490E+00
67.17 3550.2 -1.305336E+00
67.32 3557.8 -9.158535E-01
67.43 3563.5 -1.468404E+00
67.54 3569.1 -3.100502E-01
67.65 3574.8 -1.421427E+00
67.74 3579.4 -1.438695E+00
67.83 3584.0 -1.210702E+00
67.97 3592.8 -1.355035E+00
68.09 3600.3 -1.172324E+00
68.22 3608.4 -1.612607E+00
68.34 3615.6 -1.506322E+00
68.43 3621.6 -1.436170E+00
68.51 3626.6 -1.050255E+00
68.59 3631.6 -9.250170E-01
68.66 3636.0 -9.215241E-01
68.75 3641.8 -1.036983E+00
68.83 3647.0 -1.176970E+00
68.93 3653.5 -1.250871E+00
69.03 3660.0 -1.779326E+00
69.14 3666.0 -1.137140E+00
69.26 3672.5 -1.028455E+00
69.39 3679.5 -8.629931E-01
69.51 3686.0 -9.149476E-01
69.62 3692.0 -1.361565E+00
69.75 3699.0 -1.480346E+00
69.87 3705.5 -1.005143E+00
69.97 3710.9 -8.865383E-01
70.05 3715.2 -1.131653E+00
70.06 3715.8 -8.629167E-01
70.16 3721.2 -8.337043E-01
70.26 3726.6 -1.015367E+00
70.36 3732.0 -1.214556E+00
70.46 3742.0 -7.883661E-01
70.56 3752.0 -1.187781E+00
70.66 3762.0 -1.452554E+00
70.76 3772.0 -9.995305E-01
70.86 3775.9 -1.005052E+00
70.96 3779.8 -1.542274E+00
71.06 3783.7 -1.261338E+00
71.17 3788.0 -1.434242E+00
71.26 3793.9 -8.885336E-01
71.36 3800.4 -1.205119E+00
71.46 3806.9 -9.996027E-01
71.56 3813.4 -9.602060E-01
71.66 3820.0 -1.024718E+00
71.76 3826.5 -8.912924E-01
71.86 3833.0 -1.454399E+00
71.96 3839.5 -1.088720E+00
72.09 3848.0 -1.092386E+00
72.21 3855.3 -9.856048E-01
72.33 3862.6 -7.433429E-01
72.45 3870.0 -8.336839E-01
72.54 3875.5 -1.165736E+00
72.62 3880.3 -5.745413E-01
72.68 3884.0 -8.744271E-01
72.76 3889.1 -5.864331E-01
72.83 3894.1 -6.359460E-01
72.92 3900.2 -6.308186E-01
73.02 3906.9 -5.999722E-01
73.15 3915.7 -8.040508E-01
73.26 3923.1 -1.166204E+00
73.36 3929.9 -8.712527E-01
73.54 3942.0 -1.031622E+00
73.58 3944.7 -1.283148E+00
73.69 3952.1 -8.453480E-01
73.80 3959.2 -1.194712E+00
73.94 3969.0 -8.021030E-01
74.07 3977.7 -8.529634E-01
74.18 3985.2 -1.124697E+00
74.30 3993.3 -6.953723E-01
74.40 4000.0 -8.531788E-01