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Hönisch, Bärbel; Hemming, N Gary; Archer, David E; Siddall, Mark; McManus, Jerry F (2009): B- and O-isotope and Mg/Ca ratios of planktonic foraminifera and estimates of salinity, alkalinity and pCO2 for ODP Hole 108-668B (Table 1). PANGAEA, https://doi.org/10.1594/PANGAEA.721741, Supplement to: Hönisch, B et al. (2009): Atmospheric Carbon Dioxide Concentration Across the Mid-Pleistocene Transition. Science, 324(5934), 1551-1554, https://doi.org/10.1126/science.1171477

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Abstract:
The dominant period of Pleistocene glacial cycles changed during the mid-Pleistocene from 40,000 years to 100,000 years, for as yet unknown reasons. Here we present a 2.1-million-year record of sea surface partial pressure of CO2 (PCO2), based on boron isotopes in planktic foraminifer shells, which suggests that the atmospheric partial pressure of CO2 (pCO2) was relatively stable before the mid-Pleistocene climate transition. Glacial PCO2 was ~31 microatmospheres higher before the transition (more than 1 million years ago), but interglacial PCO2 was similar to that of late Pleistocene interglacial cycles (<450,000 years ago). These estimates are consistent with a close linkage between atmospheric CO2 concentration and global climate, but the lack of a gradual decrease in interglacial PCO2 does not support the suggestion that a long-term drawdown of atmospheric CO2 was the main cause of the climate transition.
Project(s):
Coverage:
Latitude: 4.768700 * Longitude: -20.927000
Date/Time Start: 1986-04-14T11:30:00 * Date/Time End: 1986-04-15T04:45:00
Minimum Elevation: -2693.5 m * Maximum Elevation: -2693.5 m
Event(s):
108-668B * Latitude: 4.768700 * Longitude: -20.927000 * Date/Time Start: 1986-04-14T11:30:00 * Date/Time End: 1986-04-15T04:45:00 * Elevation: -2693.5 m * Penetration: 31.2 m * Recovery: 31.21 m * Location: South Atlantic Ocean * Campaign: Leg108 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 4 cores; 31.2 m cored; 0 m drilled; 100 % recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
AGEAgeka BPGeocode
Sample code/labelSample labelHönisch, BärbelDSDP/ODP/IODP sample designation
Globigerinoides ruber white, δ18OG. ruber w δ18O‰ PDBHönisch, Bärbel250-300 µm
δ11Bδ11B‰ SRMHönisch, BärbelGlobigerinoides sacculifer, 515-865 µm
CommentCommentHönisch, Bärbeld11B, TRITON at LDEO data were corrected for a -1.1 offset between data measured at LDEO and NBS at SUNY SB
pHpHHönisch, BärbelCalculatedSWS
Error, absoluteError a±Hönisch, BärbelCalculatedpH, uncertainty
Globigerinoides ruber white, Magnesium/Calcium ratioG. ruber w Mg/CaHönisch, BärbelICP-AES, Inductively coupled plasma - atomic emission spectroscopymmol/mol, 250-300 µm
Sea surface temperature, annual meanSST (1-12)°CHönisch, BärbelCalculated from Mg/Ca ratios
10 Sea surface temperature, annual meanSST (1-12)°CHönisch, BärbelCalculated from Mg/Ca ratiossalinity corrected
11 SalinitySalHönisch, BärbelCalculated
12 Alkalinity, totalATµmol/kgHönisch, BärbelCalculatedconstant
13 Alkalinity, totalATµmol/kgHönisch, BärbelCalculatedvarying 4%
14 Alkalinity, totalATµmol/kgHönisch, BärbelCalculatedvarying 8%
15 Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmHönisch, BärbelCalculatedconstant alkalinity
16 Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmHönisch, BärbelCalculatedSST salinity corrected
17 Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmHönisch, BärbelCalculatedvarying alkalinity 4%
18 Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Hönisch, BärbelCalculateduncertainty
19 Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmHönisch, BärbelCalculatedvarying alkalinity 8%
Size:
978 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Age [ka BP]

Sample label
(DSDP/ODP/IODP sample designation)

G. ruber w δ18O [‰ PDB]
(250-300 µm)

δ11B [‰ SRM]
(Globigerinoides sacculifer, 5...)

Comment
(d11B, TRITON at LDEO data wer...)

pH
(SWS, Calculated)

Error a [±]
(pH, uncertainty, Calculated)

G. ruber w Mg/Ca
(mmol/mol, 250-300 µm, ICP-AES...)

SST (1-12) [°C]
(Calculated from Mg/Ca ratios)
10 
SST (1-12) [°C]
(salinity corrected, Calculate...)
11 
Sal
(Calculated)
12 
AT [µmol/kg]
(constant, Calculated)
13 
AT [µmol/kg]
(varying 4%, Calculated)
14 
AT [µmol/kg]
(varying 8%, Calculated)
15 
pCO2water_SST_wet [µatm]
(constant alkalinity, Calculated)
16 
pCO2water_SST_wet [µatm]
(SST salinity corrected, Calcu...)
17 
pCO2water_SST_wet [µatm]
(varying alkalinity 4%, Calcul...)
18 
pCO2 std dev [±]
(uncertainty, Calculated)
19 
pCO2water_SST_wet [µatm]
(varying alkalinity 8%, Calcul...)
3.6108-668B-1H-1,2-4-1.4322.00NBS8.160.033.3425.825.835.72366.32366.32366.3283.4283.4283.423.0283.4
3.6108-668B-1H-1,2-421.94TRITON
14.5108-668B-1H-1,25-27-0.8722.41NBS8.190.023.5126.326.136.12392.72368.02367.6256.8253.9253.920.2253.9
14.5108-668B-1H-1,25-2722.54TRITON
20.4108-668B-1H-1,33-35-0.3323.22NBS8.300.022.8824.223.236.82436.42401.22399.7186.3179.7183.413.8183.3
40.8108-668B-1H-1,70-72-0.5622.65NBS8.240.023.0124.724.136.42408.72356.42351.9223.6218.9218.416.9218.0
70.6108-668B-1H-1,105-107-1.1122.20NBS8.200.022.8724.123.536.42412.52346.32337.6253.6247.5246.319.5245.3
113.6108-668B-1H-2,25-27-1.2722.12NBS8.170.033.4126.025.836.12392.42303.52290.1278.2275.1267.321.6265.6
123.2108-668B-1H-2,39-41-1.9621.78NBS8.100.034.0027.827.835.72366.42273.62259.4331.5331.5317.826.7315.7
128.1108-668B-1H-2,49-51-1.4122.09NBS8.150.033.7227.026.836.02383.32286.42271.8291.9289.9279.322.8277.4
136.8108-668B-1H-2,70-72-0.2122.91NBS8.280.022.8424.023.036.92443.12338.62323.1204.2195.9194.914.9193.5
138.6108-668B-1H-2,74-760.0123.33NBS8.310.023.0024.623.636.92442.02337.32320.6183.6176.8175.213.2173.8
329.1108-668B-2H-2,56-58-1.7921.65NBS8.120.033.2325.425.335.92378.32223.72196.2316.5314.7294.824.6291.0
358.5108-668B-2H-2,105-107-0.5522.64NBS8.250.022.8023.923.436.22397.82251.92218.9215.8212.3201.915.6198.7
366.9108-668B-2H-2,130-132-0.7622.52NBS8.230.023.0024.624.336.12391.72233.72202.8230.3227.4214.116.7211.0
386.4108-668B-2H-3,14-16-1.2722.20NBS8.190.033.1925.325.235.92376.92218.82189.5260.7259.4242.319.4238.9
409.1108-668B-2H-3,56-58-1.9821.77NBS8.110.033.6626.826.835.72367.72209.42180.0320.0319.8297.524.9293.3
418.8108-668B-2H-3,70-72-1.4221.98NBS8.150.033.4226.125.836.12392.42226.62196.7292.5289.2271.122.2267.3
541.6108-668B-2H-4,94-96-0.7122.30NBS8.200.023.1325.124.536.52419.32231.62198.2255.9249.4234.818.6231.1
616.3108-668B-2H-5,37-39-1.1822.32NBS8.180.023.6226.726.536.02386.42200.72167.8267.0264.8244.919.7241.0
651.0108-668B-2H-5,73-75-0.2623.39NBS8.310.023.0824.924.236.62426.82250.32216.5181.1175.9166.912.6164.2
662.1108-668B-2H-5,80-82-0.3722.94NBS8.270.023.0424.824.036.62424.52233.62203.9206.8201.0189.414.5186.7
675.0108-668B-2H-5,87-89-0.4322.73NBS8.230.023.3025.725.136.52415.02245.32211.2228.1223.1211.016.4207.6
702.2108-668B-2H-6,14-16-1.2322.34NBS8.170.033.8227.327.136.12390.42206.42173.3272.6270.1250.420.2246.3
703.5108-668B-2H-6,25-27-1.2822.18NBS8.160.033.6926.926.736.12392.12207.12174.2283.4280.5260.221.1256.0
731.0108-668B-2H-6,69-71-0.7722.66NBS8.220.023.5026.326.036.32401.92226.42193.3237.8234.3219.317.2215.8
752.4108-668B-2H-6,90-92-0.5522.76NBS8.250.023.0324.724.136.52418.42246.52213.0217.9212.4201.415.6198.2
891.9108-668B-3H-1,99-101-0.5722.90TRITON8.260.023.1225.024.436.52416.32250.22214.5210.8205.8195.315.0192.0
950.0108-668B-3H-2,39-41-1.3821.90TRITON8.130.033.5626.526.535.82369.62217.32183.6302.4302.0281.923.2277.3
952.8108-668B-3H-2,46-48-1.6321.73TRITON8.100.033.8227.327.335.82370.02217.22183.4331.1330.6308.625.9303.6
1072.8108-668B-3H-3,44-46-1.4621.78TRITON8.120.033.5526.526.435.82369.22233.32201.3314.3313.9295.324.5290.8
1078.9108-668B-3H-3,51-53-1.2322.18TRITON8.170.033.4626.226.036.02385.52248.62216.6273.9271.7257.320.7253.4
1168.3108-668B-3H-4,5-7-1.5322.09NBS8.160.033.4526.126.035.92381.32248.12216.7281.2279.4264.521.4260.6
1192.4108-668B-3H-4,40-42-0.9522.78NBS8.240.023.2625.525.136.32406.12271.32239.2222.2218.3209.016.2205.8
1212.5108-668B-3H-4,68-70-0.6922.52NBS8.220.023.1025.024.636.22399.32266.42234.0235.1231.5221.317.3217.9
1233.3108-668B-3H-4,69-98-1.5222.26NBS8.190.023.3125.725.635.82370.52234.72202.6259.4258.9243.619.5239.9
1238.7108-668B-3H-4,103-105-1.5922.06NBS8.150.033.5926.626.535.82371.82235.02203.8287.9287.3270.422.0266.4
1253.0108-668B-3H-4,138-140-0.5922.83NBS8.240.022.9824.524.036.32407.62303.72271.9210.3206.0200.615.4197.6
1261.7108-668B-3H-5,2-4-1.3222.37NBS8.200.023.2925.625.436.12389.42260.92229.8252.1249.5237.718.8234.3
1353.3108-668B-3H-6,3-5-1.6121.90NBS8.140.033.5326.426.335.82374.12240.82210.1301.7300.7283.823.4279.7
1412.7108-668B-3H-6,80-82-0.6822.68NBS8.230.023.2925.625.236.32403.92290.52260.1229.9226.1218.417.0215.3
1499.2108-668B-4H-1,38-40-0.8722.23NBS8.170.033.4926.325.836.42412.12344.12313.8274.6269.2266.421.4262.7
1578.9108-668B-4H-1,66-68-0.8722.64NBS8.230.023.2325.425.136.12394.32247.62209.1229.8226.9214.816.8210.9
1653.0108-668B-4H-2,0-2-0.7522.58NBS8.230.023.0724.924.436.32405.12247.92207.7230.3226.0214.316.7210.2
1666.8108-668B-4H-2,7-9-0.9922.55TRITON8.230.023.1125.024.736.12389.92255.52212.1231.9229.4218.117.0213.6
1673.7108-668B-4H-2,10-12-1.3821.92NBS8.160.033.1625.225.036.02384.22267.92223.9286.1283.7271.422.1265.8
1854.2108-668B-4H-2,105-107-1.2822.05TRITON8.160.033.4626.226.036.92378.72241.12197.1284.9283.4267.521.7261.9
1863.8108-668B-4H-2,115-117-0.6022.68TRITON8.250.022.9624.524.136.22399.82289.62244.0219.0215.4208.316.1203.9
1931.8108-668B-4H-3,25-27-1.7821.76NBS8.120.033.4426.126.035.92377.22259.02218.0313.1311.6296.724.6291.0
1946.3108-668B-4H-3,46-48-1.0723.18TRITON8.280.023.2425.425.136.22396.42261.62212.8194.3191.8182.613.9178.4
1948.2108-668B-4H-3,49-51-0.6623.09TRITON8.270.023.3425.825.436.22397.72267.42217.9202.7200.0190.914.6186.4
1955.8108-668B-4H-3,56-58-0.7123.06TRITON8.290.022.9924.624.336.12391.82269.12218.6194.4192.0183.714.0179.3
1979.3108-668B-4H-3,81-83-1.3021.82TRITON8.140.033.2225.425.335.82370.82294.12248.8296.5295.9286.423.5280.4
2019.7108-668B-4H-3,116-118-1.3121.80TRITON8.150.033.0924.924.935.82369.42309.02259.4292.5287.3280.022.8273.5
2042.2108-668B-4H-3,130-132-1.3722.83TRITON8.240.023.4626.226.036.02383.72319.22252.1221.9206.0202.015.5195.8
2048.2108-668B-4H-3,133-135-0.8422.70TRITON8.220.023.4826.226.136.02383.22265.32207.3231.8249.5238.218.9231.7