Mid-Pliocene Atlantic Deep-Sea Ostracode Mg/Ca Data ----------------------------------------------------------------------- World Data Center for Paleoclimatology, Boulder and NOAA Paleoclimatology Program ----------------------------------------------------------------------- NOTE: PLEASE CITE ORIGINAL REFERENCE WHEN USING THIS DATA!!!!! NAME OF DATA SET: Mid-Pliocene Atlantic Deep-Sea Ostracode Mg/Ca Data LAST UPDATE: 2/2009 (Original receipt by WDC Paleo) CONTRIBUTOR: Gary S. Dwyer, Duke University IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2009-007 WDC PALEO CONTRIBUTION SERIES CITATION: Dwyer, G.S. and M.A. Chandler. 2009. Mid-Pliocene Atlantic Deep-Sea Ostracode Mg/Ca Data. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2009-007. NOAA/NCDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCE: Dwyer, G.S. and M.A. Chandler. 2009. Mid-Pliocene sea level and continental ice volume based on coupled benthic Mg/Ca palaeotemperatures and oxygen isotopes. Philosophical Transactions of The Royal Society A, Vol. 367, pp. 157–168. doi:10.1098/rsta.2008.0222. ABSTRACT: Ostracode magnesium/calcium (Mg/Ca)-based bottom-water temperatures were combined with benthic foraminiferal oxygen isotopes in order to quantify the oxygen isotopic composition of seawater, and estimate continental ice volume and sea-level variability during the Mid-Pliocene warm period, ca 3.3-3.0 Ma. Results indicate that, following a low stand of approximately 65 m below present at marine isotope stage (MIS) M2 (ca 3.3 Ma), sea level generally fluctuated by 20-30 m above and below a mean value similar to present-day sea level. In addition to the low-stand event at MIS M2, significant low stands occurred at MIS KM2 (-40 m), G22 (-40 m) and G16 (-60 m). Six high stands of +10 m or more above present day were also observed; four events (+10, +25, +15 and +30 m) from MIS M1 to KM3, a high stand of +15 m at MIS K1, and a high stand of +25 m at MIS G17. These results indicate that continental ice volume varied significantly during the Mid-Pliocene warm period and that at times there were considerable reductions of Antarctic ice. ADDITIONAL REFERENCE: Dwyer, G.S., T.M. Cronin, P.A. Baker, M.E. Raymo, J.S. Buzas, and T. Corrège. 1995. North Atlantic Deepwater Temperature Change During Late Pliocene and Late Quaternary Climatic Cycles. Science, Vol. 270, No. 5240, pp. 1347-1351, Nov. 24, 1995. GEOGRAPHIC REGION: Atlantic Ocean PERIOD OF RECORD: Mid-Pliocene, 3.5 - 3.3 MMa FUNDING SOURCES: G.S.D. was supported by US National Science Foundation (NSF) grant 0323276; M.A.C. was funded by NSF grants 0323516 and 0214400, and by the US National Aeronautics and Space Administration (NASA) climate program. DESCRIPTION: Atlantic deep-sea ostracode magnesium/calcium (Mg/Ca) data and Mg/Ca-based bottom-water temperatures, plus benthic foraminiferal oxygen isotope data from the Mid-Pliocene warm period, used to estimate continental ice volume and sea-level variability. Data from Ocean Drilling Program (ODP) sites 925 and 926, and from Deep Sea Drilling Program (DSDP) Site 607. ODP925: 4°12.2'N, 43°29.3'W, 3040m depth. ODP926: 3°43.1'N, 42°54.5'W, 3598m depth. DSDP607: 41°0'N, 32°57.4'W, 3427m depth. DATA: 1. Dwyer and Chandler 2009 ODP925 Mg/Ca data Column 1: Core Column 2: Top (cm) Column 3: Bottom (cm) Column 4: Depth (MBSF) Column 5: Depth (mcd) Column 6: Age (Ma, millions of years before present) Column 7: Mg/Ca ratio, sample Column 8: Mg/Ca ratio, average for depth Column 9: Bottom Water Temperature (°C) based on ostracode Mg/Ca Column 10: d13C calcite, benthic forams, per mil Column 11: d18O calcite, benthic forams, per mil PDB Column 12: Seawater d18O, per mil SMOW Column 13: Seawater d18O, water mass corrected, per mil SMOW Column 14: Sea Level (m), relative to modern Core Top Bot. MBSF MCD Age Mg/Ca avgMg/Ca T(°C) C-13 O-18 SwO18 SwO18corr SWO18corSL 925C-10-3 138 140 88.38 94.54 2.937 10.76 9.79 2.6 0.43 2.49 -0.07 0.09 26 925C-10-3 138 140 88.38 94.54 2.937 10.68 925C-10-3 138 140 88.38 94.54 2.937 7.94 925C-10-3 138 140 88.38 94.54 2.937 925C-10-4 52 54 89.02 95.18 2.955 9.90 2.7 0.52 2.52 -0.02 0.10 22 925C-10-4 52 54 89.02 95.18 2.955 9.90 925C-10-4 117 119 89.67 95.83 2.973 11.56 10.81 3.5 925C-10-4 117 119 89.67 95.83 2.973 11.75 925C-10-4 117 119 89.67 95.83 2.973 925C-10-4 117 119 89.67 95.83 2.973 10.23 925C-10-4 117 119 89.67 95.83 2.973 10.26 925C-10-4 117 119 89.67 95.83 2.973 10.25 925C-10-5 19 21 90.19 96.35 2.987 8.79 9.91 2.7 0.84 2.90 0.37 0.10 -17 925C-10-5 19 21 90.19 96.35 2.987 10.52 925C-10-5 19 21 90.19 96.35 2.987 10.43 925C-10-5 84 86 90.84 97 3.006 10.58 11.15 3.8 0.98 2.66 0.40 0.23 -7 925C-10-5 84 86 90.84 97 3.006 11.65 925C-10-5 84 86 90.84 97 3.006 10.53 925C-10-5 84 86 90.84 97 3.006 11.85 925C-10-5 144 146 91.44 97.6 3.022 10.19 10.26 3.0 1.05 2.61 0.15 0.14 8 925C-10-5 144 146 91.44 97.6 3.022 10.33 925C-10-6 50 52 92 98.16 3.038 10.15 10.22 3.0 1.07 2.65 0.19 0.13 4 925C-10-6 50 52 92 98.16 3.038 9.40 925C-10-6 50 52 92 98.16 3.038 10.25 925C-10-6 50 52 92 98.16 3.038 10.76 925C-10-6 50 52 92 98.16 3.038 10.32 925C-10-6 50 52 92 98.16 3.038 10.42 925C-10-6 108 110 92.58 98.74 3.054 8.41 9.41 2.3 925C-10-6 108 110 92.58 98.74 3.054 11.65 925C-10-6 108 110 92.58 98.74 3.054 9.00 925C-10-6 108 110 92.58 98.74 3.054 8.58 925C-10-7 18 20 93.18 99.34 3.070 7.69 8.57 1.6 0.89 2.74 -0.10 -0.03 17 925C-10-7 18 20 93.18 99.34 3.070 7.47 925C-10-7 18 20 93.18 99.34 3.070 9.37 925C-10-7 18 20 93.18 99.34 3.070 9.77 925B-11-1 83 85 90.83 100.1 3.091 10.45 9.71 2.5 0.89 2.45 -0.13 0.08 31 925B-11-1 83 85 90.83 100.1 3.091 9.45 925B-11-1 83 85 90.83 100.1 3.091 8.82 925B-11-1 83 85 90.83 100.1 3.091 9.31 925B-11-1 83 85 90.83 100.1 3.091 10.55 925B-11-2 50 52 92 101.27 3.124 11.70 11.11 3.7 1.16 2.59 0.32 0.22 0 925B-11-2 50 52 92 101.27 3.124 11.74 925B-11-2 50 52 92 101.27 3.124 12.52 925B-11-2 50 52 92 101.27 3.124 8.47 925B-11-3 20 22 93.2 102.47 3.157 11.45 10.95 3.6 925B-11-3 20 22 93.2 102.47 3.157 11.53 925B-11-3 20 22 93.2 102.47 3.157 10.29 925B-11-3 20 22 93.2 102.47 3.157 10.54 925B-11-3 140 142 94.4 103.67 3.190 9.89 9.87 2.7 1.13 2.57 0.03 0.10 17 925B-11-3 140 142 94.4 103.67 3.190 9.84 925B-11-4 106 108 95.56 104.83 3.222 10.72 11.14 3.8 925B-11-4 106 108 95.56 104.83 3.222 10.72 925B-11-4 106 108 95.56 104.83 3.222 11.97 925B-11-5 80 82 96.8 106.07 3.257 11.14 11.37 4.0 1.04 2.71 0.50 0.25 -15 925B-11-5 80 82 96.8 106.07 3.257 12.83 925B-11-5 80 82 96.8 106.07 3.257 925B-11-5 80 82 96.8 106.07 3.257 11.47 925B-11-5 80 82 96.8 106.07 3.257 10.31 925B-11-5 80 82 96.8 106.07 3.257 11.08 925B-11-6 40 42 97.9 107.17 3.287 10.17 10.46 3.2 925B-11-6 40 42 97.9 107.17 3.287 10.52 925B-11-6 40 42 97.9 107.17 3.287 10.16 925B-11-6 40 42 97.9 107.17 3.287 10.04 925B-11-6 40 42 97.9 107.17 3.287 9.52 925B-11-6 40 42 97.9 107.17 3.287 12.33 925B-11-6 100 102 98.5 107.77 3.304 8.98 10.47 3.2 0.84 3.32 0.91 0.16 -65 925B-11-6 100 102 98.5 107.77 3.304 8.56 925B-11-6 100 102 98.5 107.77 3.304 11.70 925B-11-6 100 102 98.5 107.77 3.304 10.86 925B-11-6 100 102 98.5 107.77 3.304 12.28 925B-11-7 10 12 99.1 108.37 3.320 9.18 9.70 2.5 1.03 2.80 0.22 0.08 -4 925B-11-7 10 12 99.1 108.37 3.320 9.49 925B-11-7 10 12 99.1 108.37 3.320 10.43 2. Dwyer and Chandler 2009 ODP926 Mg/Ca data Column 1: Core Column 2: Top (cm) Column 3: Bottom (cm) Column 4: Depth (MBSF) Column 5: Depth (mcd) Column 6: Age (Ma, millions of years before present) Column 7: Mg/Ca ratio, sample Column 8: Mg/Ca ratio, average for depth Column 9: Bottom Water Temperature (°C) based on ostracode Mg/Ca Column 10: d13C calcite, benthic forams, per mil Column 11: d18O calcite, benthic forams, per mil PDB Column 12: Seawater d18O, per mil SMOW Column 13: Water Mass Correction Factor for Seawater d18O, per mil SMOW Column 14: Sea Level (m), relative to modern Core Top Bot. MBSF MCD Age Mg/Ca avgMg/Ca T(°C) C-13 O-18 SwO18 SwO18WMF SWO18corSL 926B-9-7 10 12 82.6 91.59 2.916163 8.83 9.77 2.59 0.480 2.808 0.24 0.09 -5.33 926B-9-7 10 12 82.6 91.59 2.916163 10.70 926B-9-7 65 67 83.15 92.14 2.935798 9.95 10.09 2.87 926B-9-7 65 67 83.15 92.14 2.935798 10.24 926B-10-1 40 42 83.4 95.2 3.04504 8.06 8.16 1.22 0.524 2.887 -0.05 -0.07 7.37 926B-10-1 40 42 83.4 95.2 3.04504 8.26 926B-10-1 100 102 84 95.8 3.06646 8.31 9.88 2.69 0.817 2.619 0.08 0.10 12.12 926B-10-1 100 102 84 95.8 3.06646 11.18 926B-10-1 100 102 84 95.8 3.06646 10.47 926B-10-1 100 102 84 95.8 3.06646 9.56 926B-10-2 10 12 84.6 96.4 3.08788 9.41 10.42 3.15 1.026 2.589 0.17 0.15 8.33 926B-10-2 10 12 84.6 96.4 3.08788 11.42 926B-10-2 10 12 84.6 96.4 3.08788 926B-10-2 70 72 85.2 97 3.1093 11.05 10.12 2.89 0.523 2.607 0.12 0.12 10.33 926B-10-2 70 72 85.2 97 3.1093 9.77 926B-10-2 70 72 85.2 97 3.1093 9.84 926B-10-2 70 72 85.2 97 3.1093 9.77 926B-10-2 70 72 85.2 97 3.1093 10.15 926B-10-2 136 138 85.86 97.66 3.132862 10.01 10.01 2.80 0.130 2.692 0.18 0.11 3.16 926B-10-3 40 42 86.4 98.2 3.15214 8.35 7.80 0.91 926B-10-3 40 42 86.4 98.2 3.15214 7.94 926B-10-3 40 42 86.4 98.2 3.15214 7.11 926B-10-3 100 102 87 98.8 3.17356 9.15 9.71 2.54 926B-10-3 100 102 87 98.8 3.17356 9.09 926B-10-3 100 102 87 98.8 3.17356 10.88 926B-10-4 10 12 87.6 99.4 3.19498 9.00 9.33 2.22 1.267 2.546 -0.12 0.04 26.30 926B-10-4 10 12 87.6 99.4 3.19498 9.99 926B-10-4 10 12 87.6 99.4 3.19498 9.02 926B-10-4 70 72 88.2 100 3.2164 9.84 10.34 3.08 1.260 2.517 0.08 0.14 16.51 926B-10-4 70 72 88.2 100 3.2164 10.84 926B-10-4 130 132 88.8 100.6 3.23782 10.29 10.21 2.97 1.341 2.773 0.31 0.13 -7.48 926B-10-4 130 132 88.8 100.6 3.23782 10.99 926B-10-4 130 132 88.8 100.6 3.23782 9.36 926B-10-4 130 132 88.8 100.6 3.23782 926B-10-4 130 132 88.8 100.6 3.23782 926B-10-4 130 132 88.8 100.6 3.23782 926B-10-5 72 74 89.72 101.52 3.270664 9.30 9.30 2.19 0.827 2.865 0.19 0.04 -5.15 926B-10-5 72 74 89.72 101.52 3.270664 926B-10-5 132 134 90.32 102.12 3.292084 8.53 8.80 1.77 926B-10-5 132 134 90.32 102.12 3.292084 9.07 926B-10-5 132 134 90.32 102.12 3.292084 926B-10-6 40 42 90.9 102.7 3.31279 8.04 9.83 2.64 0.378 3.208 0.65 0.09 -46.13 926B-10-6 40 42 90.9 102.7 3.31279 10.30 926B-10-6 40 42 90.9 102.7 3.31279 12.02 926B-10-6 40 42 90.9 102.7 3.31279 9.55 926B-10-6 40 42 90.9 102.7 3.31279 9.21 926B-10-6 100 102 91.5 103.3 3.33421 9.70 9.25 2.15 0.574 2.842 0.16 0.04 -2.11 926B-10-6 100 102 91.5 103.3 3.33421 9.06 926B-10-6 100 102 91.5 103.3 3.33421 8.64 926B-10-6 100 102 91.5 103.3 3.33421 9.59 926B-10-7 10 12 92.1 103.9 3.35563 10.20 10.81 3.48 0.754 2.705 0.37 0.19 -8.17 926B-10-7 10 12 92.1 103.9 3.35563 10.76 926B-10-7 10 12 92.1 103.9 3.35563 11.33 926B-10-7 10 12 92.1 103.9 3.35563 11.54 926B-10-7 10 12 92.1 103.9 3.35563 9.41 926B-10-7 10 12 92.1 103.9 3.35563 11.62 926B-10-C 10 12 92.67 104.47 3.375979 9.48 9.62 2.46 1.002 2.691 0.09 0.07 8.22 926B-10-C 10 12 92.67 104.47 3.375979 9.76 3. Dwyer and Chandler 2009 DSDP607 Mg/Ca data, intersample averages Column 1: Depth (MBSF) Column 2: Depth (adjusted MBSF) Column 3: Age (Ma) Column 4: Mg/Ca Column 5: Bottom Water Temperature (°C), based on ostracode Mg/Ca Column 6: d13C calcite, benthic forams, per mil Column 7: d18O calcite, benthic forams, per mil PDB Column 8: Seawater d18O, per mil SMOW Column 9: Water Mass normalization factor for seawater d18O, per mil SMOW Column 10: Seawater d18O, Water Mass corrected, per mil SMOW Column 11: Sea Level (m), relative to modern Intrasample Averages Depth Adj.Depth Age Mg/Ca BWT C13 O18 SwO18 SwO18WMF SwO18WMcor SL 122.09 122.09 2.915 9.77 2.59 1.03 2.94 0.38 0.09 0.29 -19 122.4 122.4 2.922 8.73 1.71 0.29 3.11 0.31 -0.02 0.33 -23 122.56 122.56 2.925 9.71 2.54 0.05 3.25 0.67 0.08 0.59 -49 122.76 122.76 2.930 8.75 1.72 0.64 3.45 0.65 -0.01 0.66 -56 122.85 122.85 2.932 9.82 2.64 0.03 3.36 0.80 0.09 0.71 -61 123.02 123.02 2.935 8.91 1.86 0.87 3.21 0.45 0.00 0.45 -35 123.28 123.28 2.941 9.6 2.45 0.73 2.50 -0.11 0.07 -0.18 28 123.48 123.48 2.945 9.81 2.63 0.92 2.74 0.19 0.09 0.09 1 123.6 123.6 2.948 10.11 2.88 0.88 2.62 0.13 0.12 0.01 9 123.72 123.72 2.951 9.96 2.75 0.90 2.58 0.05 0.11 -0.05 15 123.75 123.75 2.951 10.32 3.07 0.49 2.72 0.28 0.14 0.14 -4 124.05 124.05 2.958 9.87 2.68 1.12 2.70 0.16 0.10 0.06 4 124.2 124.2 2.961 10.14 2.91 1.10 2.63 0.15 0.12 0.02 8 124.35 124.35 2.965 9.75 2.58 0.94 2.86 0.29 0.09 0.20 -10 124.48 124.48 2.968 10.35 3.09 1.05 3.01 0.57 0.15 0.43 -33 124.8 124.8 2.975 9.51 2.37 0.71 2.93 0.30 0.06 0.24 -14 124.89 124.89 2.977 9.67 2.51 0.87 3.16 0.57 0.08 0.49 -39 125.1 125.1 2.982 9.64 2.48 0.84 2.97 0.38 0.07 0.30 -20 125.26 125.26 2.985 10.27 3.02 1.07 2.84 0.39 0.14 0.25 -15 125.41 125.41 2.989 10.11 2.89 0.82 2.64 0.15 0.12 0.03 7 125.54 125.54 2.992 10.63 3.33 0.66 2.96 0.59 0.17 0.42 -32 125.72 125.72 2.996 9.42 2.3 0.81 2.87 0.22 0.05 0.17 -7 125.85 125.85 2.999 9.66 2.5 0.68 3.12 0.53 0.08 0.45 -35 126 126 3.002 9.9 2.71 0.70 3.01 0.47 0.10 0.37 -27 126.19 126.19 3.007 9.97 2.76 0.77 3.20 0.67 0.11 0.57 -47 126.3 126.3 3.009 10.34 3.08 0.61 3.12 0.68 0.14 0.53 -43 126.47 126.47 3.013 8.63 1.62 0.60 2.95 0.13 -0.03 0.15 -5 126.58 126.58 3.016 9.9 2.7 0.60 2.94 0.40 0.10 0.30 -20 126.75 126.75 3.020 9.77 2.59 0.43 3.18 0.62 0.09 0.53 -43 126.9 126.9 3.024 9.51 2.37 0.70 3.01 0.38 0.06 0.32 -22 127.02 127.02 3.026 9.64 2.48 0.83 2.85 0.26 0.07 0.18 -8 127.21 127.21 3.031 9.9 2.7 0.87 2.70 0.16 0.10 0.06 4 127.36 127.36 3.034 9.75 2.58 0.84 2.78 0.21 0.09 0.12 -2 127.5 127.5 3.038 9.91 2.71 0.56 2.95 0.41 0.10 0.31 -21 127.64 127.64 3.041 9.33 2.22 0.48 2.85 0.19 0.04 0.14 -4 127.8 127.8 3.045 8.94 1.88 0.52 3.04 0.29 0.00 0.28 -18 127.95 127.95 3.049 9.5 2.36 128.09 128.09 3.052 10.38 3.12 0.64 2.92 0.49 0.15 0.34 -24 128.29 128.29 3.057 10.38 3.11 0.91 2.77 0.34 0.15 0.19 -9 128.39 128.39 3.059 10.15 2.91 0.82 2.68 0.19 0.12 0.07 3 128.56 128.56 3.063 9.62 2.47 1.06 2.69 0.09 0.07 0.02 8 128.72 128.72 3.067 10.14 2.91 0.67 2.55 0.07 0.12 -0.06 16 128.85 128.85 3.070 10.81 3.48 1.10 2.74 0.40 0.19 0.21 -11 128.98 128.98 3.074 10.24 2.99 1.04 2.61 0.15 0.13 0.02 8 129.18 129.18 3.079 10.32 3.06 1.03 2.82 0.38 0.14 0.24 -14 129.3 129.3 3.081 9.49 2.36 1.01 2.88 0.25 0.06 0.19 -9 129.46 129.46 3.085 0.90 2.75 129.58 129.58 3.088 10.25 3.01 0.92 2.90 0.45 0.14 0.31 -21 129.76 129.76 3.093 9.73 2.56 0.52 2.85 0.28 0.08 0.19 -9 129.9 129.9 3.096 10.22 2.98 0.94 2.85 0.38 0.13 0.25 -15 130.07 130.07 3.101 10.47 3.19 0.75 2.77 0.36 0.16 0.20 -10 130.22 130.22 3.104 10.31 3.05 0.76 2.96 0.52 0.14 0.37 -27 130.35 130.35 3.108 10.2 2.96 0.61 2.82 0.35 0.13 0.22 -12 130.86 131.36 3.133 8.84 1.8 0.60 3.27 0.50 -0.01 0.50 -40 130.98 131.48 3.136 10.08 2.86 0.88 3.15 0.65 0.12 0.53 -43 131.15 131.65 3.141 10.72 3.41 1.00 2.72 0.37 0.18 0.19 -9 131.37 131.87 3.146 10.13 2.9 0.91 2.47 -0.02 0.12 -0.14 24 131.47 131.97 3.149 10.06 2.84 0.70 2.44 -0.06 0.12 -0.18 28 131.65 132.15 3.153 9.76 2.58 0.91 2.62 0.05 0.09 -0.04 14 131.8 132.3 3.157 10.42 3.15 0.78 2.84 0.42 0.15 0.26 -16 131.89 132.39 3.160 10.18 2.94 132.05 132.55 3.164 10.63 3.33 0.69 2.74 0.36 0.17 0.19 -9 132.16 132.66 3.167 10.09 2.86 0.77 2.85 0.35 0.12 0.24 -14 132.36 132.86 3.172 9.5 2.37 0.60 2.85 0.22 0.06 0.16 -6 132.55 133.05 3.177 9.43 2.31 1.07 2.66 0.02 0.05 -0.04 14 132.71 133.21 3.181 9.96 2.76 0.95 2.61 0.09 0.11 -0.02 12 132.85 133.35 3.185 10.87 3.53 1.18 2.73 0.41 0.20 0.21 -11 133.05 133.55 3.190 10.31 3.06 1.22 2.67 0.23 0.14 0.09 1 133.15 133.65 3.193 10.53 3.24 1.20 2.63 0.24 0.16 0.08 2 133.32 133.82 3.197 10.14 2.91 1.27 2.75 0.27 0.12 0.14 -4 133.6 134.1 3.205 10.07 2.85 1.07 2.59 0.09 0.12 -0.03 13 133.75 134.25 3.209 9.77 2.6 0.99 2.51 -0.06 0.09 -0.15 25 133.9 134.4 3.213 10.59 3.3 1.36 2.78 0.40 0.17 0.23 -13 134.07 134.57 3.217 10.89 3.55 1.12 2.84 0.53 0.20 0.33 -23 134.27 134.77 3.223 10.57 3.28 1.34 2.79 0.41 0.17 0.24 -14 134.36 134.86 3.225 10.62 3.32 0.51 2.90 0.52 0.17 0.35 -25 134.51 135.01 3.229 10.55 3.26 1.09 2.73 0.34 0.17 0.18 -8 134.73 135.23 3.235 10.57 3.28 0.94 2.79 0.40 0.17 0.24 -14 134.89 135.39 3.240 9.65 2.5 0.72 2.65 0.06 0.08 -0.01 11 135.12 135.62 3.246 10.33 3.07 0.95 2.89 0.45 0.14 0.31 -21 135.25 135.75 3.249 10.23 2.99 1.05 3.07 0.61 0.13 0.48 -38 135.36 135.86 3.253 9.85 2.66 1.01 2.87 0.32 0.10 0.23 -13 135.49 135.99 3.256 0.91 2.77 135.49 135.99 3.256 10.15 2.92 1.01 2.89 0.41 0.13 0.28 -18 135.63 136.13 3.260 10.2 2.96 0.72 2.90 0.43 0.13 0.30 -20 135.77 136.27 3.264 10.08 2.86 0.50 2.85 0.36 0.12 0.24 -14 135.94 136.44 3.269 10.39 3.12 0.86 2.80 0.37 0.15 0.22 -12 136.01 136.51 3.270 9.99 2.78 0.68 3.05 0.54 0.11 0.43 -33 136.1 136.6 3.273 10.09 2.87 1.00 2.99 0.50 0.12 0.38 -28 136.4 136.9 3.281 9.43 2.3 0.44 3.23 0.58 0.05 0.53 -43 136.55 137.05 3.286 8.6 1.6 0.63 3.43 0.60 -0.03 0.63 -53 136.7 137.2 3.290 9.09 2.01 0.62 3.36 0.64 0.02 0.62 -52 136.84 137.34 3.294 9.83 2.64 0.31 3.40 0.84 0.09 0.75 -65 137.06 137.56 3.300 9.31 2.2 0.38 3.34 0.67 0.04 0.63 -53 137.2 137.7 3.304 9.27 2.17 0.88 3.30 0.62 0.04 0.58 -48 137.43 137.93 3.310 8.75 1.72 0.26 3.16 0.36 -0.01 0.38 -28 137.58 138.08 3.315 9.16 2.08 0.96 2.87 0.17 0.03 0.14 -4 137.73 138.23 3.319 9.85 2.66 0.85 2.67 0.12 0.10 0.02 8 137.89 138.39 3.323 9.23 2.13 0.63 2.83 0.14 0.03 0.10 0 138.05 138.55 3.328 10.38 3.12 0.95 2.73 0.30 0.15 0.15 -5 138.2 138.7 3.332 9.2 2.11 0.98 2.82 0.12 0.03 0.09 1 138.42 138.92 3.339 9.22 2.12 0.88 2.86 0.17 0.03 0.14 -4 138.54 139.04 3.342 9.53 2.39 0.87 2.89 0.27 0.06 0.21 -11 138.77 139.27 3.349 10.29 3.04 1.01 2.84 0.39 0.14 0.25 -15 138.93 139.43 3.353 10.02 2.81 0.93 2.93 0.42 0.11 0.31 -21 139.16 139.66 3.360 9.59 2.44 0.90 2.94 0.33 0.07 0.26 -16 139.39 139.89 3.367 9.51 2.37 0.27 2.82 0.19 0.06 0.13 -3 139.55 140.05 3.372 10.09 2.87 0.53 2.80 0.31 0.12 0.19 -9 139.71 140.21 3.376 9.21 2.11 0.95 2.93 0.23 0.03 0.20 -10 4. Dwyer and Chandler 2009 DSDP607 Mg/Ca data, Individual Shell Measurments MBSF Adj.MBSF Mg/Ca 122.09 122.09 9.66 122.09 122.09 9.51 122.09 122.09 8.78 122.09 122.09 10.79 122.09 122.09 10.09 122.09 122.09 122.4 122.40 122.4 122.40 10.42 122.4 122.40 7.07 122.4 122.40 9.91 122.4 122.40 7.54 122.4 122.40 122.56 122.56 9.04 122.56 122.56 10.12 122.56 122.56 9.94 122.56 122.56 10.26 122.56 122.56 9.87 122.56 122.56 9 122.76 122.76 9.74 122.76 122.76 9.27 122.76 122.76 8.33 122.76 122.76 9.77 122.76 122.76 8.29 122.76 122.76 7.09 122.85 122.85 10.74 122.85 122.85 8.83 122.85 122.85 10.03 122.85 122.85 10.58 122.85 122.85 8.94 123.02 123.02 9.32 123.02 123.02 123.02 123.02 123.02 123.02 8.63 123.02 123.02 9.78 123.02 123.02 7.91 123.28 123.28 8.64 123.28 123.28 10.1 123.28 123.28 9.97 123.28 123.28 10.08 123.28 123.28 9.19 123.48 123.48 9.54 123.48 123.48 10.08 123.6 123.60 9.55 123.6 123.60 10.66 123.72 123.72 10.87 123.72 123.72 9.92 123.72 123.72 9.24 123.72 123.72 10.16 123.72 123.72 9.59 123.75 123.75 10.19 123.75 123.75 10.46 124.05 124.05 9.75 124.05 124.05 10.1 124.05 124.05 9.26 124.05 124.05 10.01 124.05 124.05 9.81 124.05 124.05 10.3 124.2 124.20 10.13 124.2 124.20 9.85 124.2 124.20 10.03 124.2 124.20 10.38 124.2 124.20 124.2 124.20 10.32 124.35 124.35 9.35 124.35 124.35 11.04 124.35 124.35 10.16 124.35 124.35 8.97 124.35 124.35 9.25 124.35 124.35 124.48 124.48 11.65 124.48 124.48 10.55 124.48 124.48 10.38 124.48 124.48 9.73 124.48 124.48 10.38 124.48 124.48 9.43 124.8 124.80 9.3 124.8 124.80 10.17 124.8 124.80 9.71 124.8 124.80 124.8 124.80 9.63 124.8 124.80 8.74 124.89 124.89 9.4 124.89 124.89 10.2 124.89 124.89 9.83 124.89 124.89 10.06 124.89 124.89 8.86 124.89 124.89 125.1 125.10 8.97 125.1 125.10 10.72 125.1 125.10 10.66 125.1 125.10 8.9 125.1 125.10 8.96 125.1 125.10 125.26 125.26 9.41 125.26 125.26 125.26 125.26 9.08 125.26 125.26 10.78 125.26 125.26 11.57 125.26 125.26 10.52 125.41 125.41 9.88 125.41 125.41 9.08 125.41 125.41 10.79 125.41 125.41 9.85 125.41 125.41 10.37 125.41 125.41 10.73 125.54 125.54 125.54 125.54 12.26 125.54 125.54 10.26 125.54 125.54 9.88 125.54 125.54 10.61 125.54 125.54 10.14 125.72 125.72 10.02 125.72 125.72 8.49 125.72 125.72 8.86 125.72 125.72 9.57 125.72 125.72 9.72 125.72 125.72 9.88 125.85 125.85 125.85 125.85 9.61 125.85 125.85 10.11 125.85 125.85 9.08 125.85 125.85 125.85 125.85 9.84 126 126 9.19 126 126 11.46 126 126 9.3 126 126 10.86 126 126 8.71 126.19 126.19 9.68 126.19 126.19 11.17 126.19 126.19 9.98 126.19 126.19 8.55 126.19 126.19 9.2 126.19 126.19 11.21 126.3 126.3 10.63 126.3 126.3 9.05 126.3 126.3 10.2 126.3 126.3 11.61 126.3 126.3 10.17 126.3 126.3 10.36 126.47 126.47 8.4 126.47 126.47 8.37 126.47 126.47 8.58 126.47 126.47 8.35 126.47 126.47 9.47 126.58 126.58 9.4 126.58 126.58 10.15 126.58 126.58 10.81 126.58 126.58 9.25 126.58 126.58 10.04 126.58 126.58 9.75 126.75 126.75 8.87 126.75 126.75 10.23 126.75 126.75 10.13 126.75 126.75 9.95 126.75 126.75 9.4 126.75 126.75 10.01 126.9 126.9 9.11 126.9 126.9 9.91 127.02 127.02 8.58 127.02 127.02 8.61 127.02 127.02 9.45 127.02 127.02 11.62 127.02 127.02 9.28 127.02 127.02 10.31 127.21 127.21 9.54 127.21 127.21 10.02 127.21 127.21 9.33 127.21 127.21 127.21 127.21 127.21 127.21 10.71 127.36 127.36 9.5 127.36 127.36 9.24 127.36 127.36 10.18 127.36 127.36 11.17 127.36 127.36 9.25 127.36 127.36 9.19 127.5 127.5 10.49 127.5 127.5 8.64 127.5 127.5 10.38 127.5 127.5 9.89 127.5 127.5 10.14 127.64 127.64 8.21 127.64 127.64 9.71 127.64 127.64 8.88 127.64 127.64 9.73 127.64 127.64 9.33 127.64 127.64 10.12 127.8 127.8 9.64 127.8 127.8 8.68 127.8 127.8 9.22 127.8 127.8 8.41 127.8 127.8 8.69 127.8 127.8 8.99 127.95 127.95 9.22 127.95 127.95 8.93 127.95 127.95 10.5 127.95 127.95 9.36 128.09 128.09 11.9 128.09 128.09 10.01 128.09 128.09 10.08 128.09 128.09 9.55 128.29 128.29 10.35 128.29 128.29 11.96 128.29 128.29 9.01 128.29 128.29 10.19 128.39 128.39 10.45 128.39 128.39 10.24 128.39 128.39 10.64 128.39 128.39 10.52 128.39 128.39 8.91 128.39 128.39 10.12 128.56 128.56 8.96 128.56 128.56 8.92 128.56 128.56 9.25 128.56 128.56 10.24 128.56 128.56 10.75 128.56 128.56 128.72 128.72 9.23 128.72 128.72 10.37 128.72 128.72 9.51 128.72 128.72 10.49 128.72 128.72 9.83 128.72 128.72 11.4 128.85 128.85 11.08 128.85 128.85 10.59 128.85 128.85 10.96 128.85 128.85 10.73 128.85 128.85 10.68 128.98 128.98 10.24 129.18 129.18 10.13 129.18 129.18 9.7 129.18 129.18 9.91 129.18 129.18 10.3 129.18 129.18 11.55 129.18 129.18 129.3 129.3 8.46 129.3 129.3 10.13 129.3 129.3 8.34 129.3 129.3 10.86 129.3 129.3 9.67 129.3 129.3 129.46 129.46 9.58 129.46 129.46 9.69 129.46 129.46 10.24 129.58 129.58 10.01 129.58 129.58 10.16 129.58 129.58 129.58 129.58 9.35 129.58 129.58 10.4 129.58 129.58 11.36 129.76 129.76 10.03 129.76 129.76 10.39 129.76 129.76 8.45 129.76 129.76 10.04 129.9 129.9 10.03 129.9 129.9 10.43 129.9 129.9 10.82 129.9 129.9 9.62 129.9 129.9 9.63 129.9 129.9 10.8 130.07 130.07 10.77 130.07 130.07 10.91 130.07 130.07 10.31 130.07 130.07 12.01 130.07 130.07 8.93 130.07 130.07 9.87 130.22 130.22 10.61 130.22 130.22 8.51 130.22 130.22 9.68 130.22 130.22 130.22 130.22 11.74 130.22 130.22 11 130.35 130.35 9.69 130.35 130.35 11.13 130.35 130.35 10.24 130.35 130.35 130.35 130.35 11.19 130.35 130.35 8.73 130.86 131.36 7.79 130.86 131.36 8.94 130.86 131.36 8.34 130.86 131.36 10.28 130.98 131.48 9.73 130.98 131.48 9.25 130.98 131.48 11.27 131.15 131.65 11.08 131.15 131.65 10.45 131.15 131.65 10.83 131.15 131.65 10.53 131.37 131.87 10.27 131.37 131.87 9.51 131.37 131.87 10.35 131.37 131.87 10.39 131.47 131.97 131.47 131.97 9.7 131.47 131.97 9.65 131.47 131.97 9.7 131.47 131.97 131.47 131.97 11.18 131.65 132.15 9.76 131.8 132.3 10.46 131.8 132.3 11.08 131.8 132.3 9.71 131.89 132.39 9.61 131.89 132.39 10.17 131.89 132.39 10.18 131.89 132.39 10.48 131.89 132.39 10.44 132.05 132.55 10.9 132.05 132.55 10.82 132.05 132.55 11.15 132.05 132.55 9.67 132.16 132.66 10.29 132.16 132.66 132.16 132.66 10.93 132.16 132.66 9.7 132.16 132.66 9.41 132.16 132.66 10.11 132.36 132.86 9.86 132.36 132.86 8.94 132.36 132.86 10.04 132.36 132.86 7.84 132.36 132.86 10.01 132.36 132.86 10.33 132.55 133.05 10.67 132.55 133.05 6.82 132.55 133.05 9.4 132.55 133.05 9.87 132.55 133.05 9.42 132.55 133.05 10.43 132.71 133.21 10.74 132.71 133.21 8.89 132.71 133.21 10.1 132.71 133.21 10.86 132.71 133.21 9.47 132.71 133.21 9.71 132.85 133.35 10.33 132.85 133.35 10.38 132.85 133.35 11.59 132.85 133.35 11.92 132.85 133.35 10.09 132.85 133.35 10.9 133.05 133.55 9.13 133.05 133.55 10.86 133.05 133.55 10.89 133.05 133.55 10.27 133.05 133.55 10.9 133.05 133.55 9.82 133.15 133.65 10.33 133.15 133.65 11.01 133.15 133.65 10.58 133.15 133.65 9.33 133.15 133.65 10.85 133.15 133.65 11.06 133.32 133.82 10.78 133.32 133.82 11.02 133.32 133.82 10.64 133.32 133.82 8.95 133.32 133.82 10.67 133.32 133.82 8.77 133.6 134.1 9.69 133.6 134.1 10.29 133.6 134.1 10.27 133.6 134.1 133.6 134.1 9.59 133.6 134.1 10.49 133.75 134.25 9.22 133.75 134.25 11.2 133.75 134.25 9.48 133.75 134.25 9.2 133.9 134.4 9.77 133.9 134.4 11.47 133.9 134.4 11.51 133.9 134.4 133.9 134.4 10.48 133.9 134.4 9.73 134.07 134.57 134.07 134.57 11.31 134.07 134.57 11.86 134.07 134.57 11.17 134.07 134.57 9.9 134.07 134.57 10.19 134.27 134.77 10.59 134.27 134.77 11.2 134.27 134.77 8.92 134.27 134.77 9.6 134.27 134.77 11.25 134.27 134.77 11.88 134.36 134.86 9.34 134.36 134.86 11.27 134.36 134.86 11.24 134.36 134.86 9.95 134.36 134.86 11.31 134.51 135.01 10.73 134.51 135.01 9.83 134.51 135.01 10.27 134.51 135.01 10.65 134.51 135.01 10.65 134.51 135.01 11.17 134.73 135.23 11.79 134.73 135.23 10.61 134.73 135.23 9.4 134.73 135.23 11.35 134.73 135.23 9.64 134.73 135.23 10.65 134.89 135.39 134.89 135.39 9.46 134.89 135.39 8.91 134.89 135.39 11.22 134.89 135.39 10.14 134.89 135.39 8.54 135.12 135.62 11.7 135.12 135.62 10.57 135.12 135.62 8.64 135.12 135.62 9.91 135.12 135.62 10.84 135.12 135.62 135.25 135.75 11.76 135.25 135.75 9.27 135.25 135.75 9.77 135.25 135.75 10.76 135.25 135.75 9.59 135.25 135.75 135.36 135.86 135.36 135.86 9.54 135.36 135.86 9.59 135.36 135.86 10.78 135.36 135.86 10.01 135.36 135.86 9.31 135.49 135.99 9.79 135.49 135.99 10.37 135.49 135.99 11.09 135.49 135.99 10.29 135.49 135.99 10.05 135.49 135.99 9.29 135.63 136.13 10.12 135.63 136.13 11.75 135.63 136.13 135.63 136.13 9.29 135.63 136.13 10.87 135.63 136.13 8.95 135.77 136.27 9.11 135.77 136.27 10.05 135.77 136.27 11.35 135.77 136.27 10.74 135.77 136.27 8.56 135.77 136.27 10.69 135.94 136.44 9.94 135.94 136.44 12.12 135.94 136.44 10.06 135.94 136.44 9.97 135.94 136.44 10.91 135.94 136.44 9.3 136.01 136.51 9.48 136.01 136.51 11.13 136.01 136.51 10.56 136.01 136.51 7.83 136.01 136.51 10.95 136.1 136.6 8.71 136.16 136.66 9.8 136.16 136.66 11.02 136.16 136.66 10.42 136.16 136.66 12.14 136.16 136.66 8.44 136.4 136.9 10.82 136.4 136.9 9.52 136.4 136.9 9.61 136.4 136.9 9.64 136.4 136.9 9.17 136.4 136.9 7.8 136.55 137.05 9.5 136.55 137.05 136.55 137.05 8.83 136.55 137.05 7.48 136.55 137.05 136.55 137.05 136.7 137.2 136.7 137.2 10.57 136.7 137.2 8.08 136.7 137.2 8.2 136.7 137.2 9.53 136.84 137.34 10.2 136.84 137.34 10.38 136.84 137.34 9.47 136.84 137.34 8.16 136.84 137.34 10.93 137.06 137.56 7.99 137.06 137.56 8.77 137.06 137.56 8.4 137.06 137.56 9.52 137.06 137.56 11 137.06 137.56 10.16 137.2 137.7 8.41 137.2 137.7 9.19 137.2 137.7 9.11 137.2 137.7 9.37 137.2 137.7 9.6 137.2 137.7 9.93 137.43 137.93 9.09 137.43 137.93 9.1 137.43 137.93 7.25 137.43 137.93 9.35 137.43 137.93 9.45 137.43 137.93 8.26 137.58 138.08 9.72 137.58 138.08 9.21 137.58 138.08 8.63 137.58 138.08 9.23 137.58 138.08 9.1 137.58 138.08 9.09 137.73 138.23 137.73 138.23 8.89 137.73 138.23 9.95 137.73 138.23 10.34 137.73 138.23 137.73 138.23 10.22 137.89 138.39 8.62 137.89 138.39 7.73 137.89 138.39 10.22 137.89 138.39 10.58 137.89 138.39 8.99 138.05 138.55 10.24 138.05 138.55 10.12 138.05 138.55 10.08 138.05 138.55 10.74 138.05 138.55 11.56 138.05 138.55 9.56 138.2 138.7 10.53 138.2 138.7 8.7 138.2 138.7 8.75 138.2 138.7 8.82 138.42 138.92 8.55 138.42 138.92 10.15 138.42 138.92 9.43 138.42 138.92 8.92 138.42 138.92 9.03 138.42 138.92 9.21 138.54 139.04 9.63 138.54 139.04 138.54 139.04 138.54 139.04 9.43 138.54 139.04 138.54 139.04 138.77 139.27 138.77 139.27 138.77 139.27 10.14 138.77 139.27 10.32 138.77 139.27 10.64 138.77 139.27 10.07 138.93 139.43 10.2 138.93 139.43 9.88 138.93 139.43 10.54 138.93 139.43 138.93 139.43 138.93 139.43 9.47 139.16 139.66 9.01 139.16 139.66 9.1 139.16 139.66 9.65 139.16 139.66 10.93 139.16 139.66 9.45 139.16 139.66 9.43 139.39 139.89 9.79 139.39 139.89 9.96 139.39 139.89 9.47 139.39 139.89 9.99 139.39 139.89 9.7 139.39 139.89 8.15 139.55 140.05 11.28 139.55 140.05 9.62 139.55 140.05 9.73 139.55 140.05 9.72 139.71 140.21 9.6 139.71 140.21 8.86 139.71 140.21 8.73 139.71 140.21 9.42 139.71 140.21 9.4 139.71 140.21 9.24