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Cléroux, Caroline; Cortijo, Elsa; Anand, Pallavi; Labeyrie, Laurent D; Bassinot, Franck C; Caillon, Nicolas; Duplessy, Jean-Claude (2008): Mg/Ca and Sr/Ca ratios of planktonic foraminifera from North Atlantic surface sediments [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.832178, Supplement to: Cléroux, C et al. (2008): Mg/Ca and Sr/Ca ratios in planktonic foraminifera: Proxies for upper water column temperature reconstruction. Paleoceanography, 23(3), PA3214, https://doi.org/10.1029/2007PA001505

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Abstract:
Reliable temperature estimates from both surface and subsurface ocean waters are needed to reconstruct past upper water column temperature gradients and past oceanic heat content. This work examines the relationships between trace element ratios in fossil shells and seawater temperature for surface-dwelling foraminifera species, Globigerinoides ruber (white) and Globigerina bulloides, and deep-dwelling species, Globorotalia inflata, Globorotalia truncatulinoides (dextral and sinistral) and Pulleniatina obliquiloculata. Mg/Ca and Sr/Ca ratios in shells picked in 29 modern core tops from the North Atlantic Ocean are calibrated using calculated isotopic temperatures. Mg/Ca ratios on G. ruber and G. bulloides agree with published data and relationships. For deep-dwelling species, Mg/Ca calibration follows the equation Mg/Ca = 0.78 (±0.04) * exp (0.051 (±0.003) * T) with a significant correlation coefficient of R**2 = 0.74. Moreover, there is no significant difference between the different deep-dwellers analyzed. For the Sr/Ca ratio, the surface dwellers and P. obliquiloculata do not record any temperature dependence. For the Globorotalia species, the thermo dependence of Sr/Ca ratio can be described by a single linear relationship: Sr/Ca = (0.0182 (±0.001) * T) + 1.097 (±0.018), R**2 = 0.85. Temperature estimates with a 1 sigma error of ±2.0°C and ±1.3°C can be derived from the Mg/Ca and Sr/Ca ratios, respectively, as long as the Sr geochemistry in the ocean has been constant through time.
Further details:
Cléroux, Caroline; Cortijo, Elsa; Duplessy, Jean-Claude; Zahn, Rainer (2007): Deep-dwelling foraminifera as thermocline temperature recorders. Geochemistry, Geophysics, Geosystems, 8(4), Q04N11, https://doi.org/10.1029/2006GC001474
Cléroux, Caroline; Cortijo, Elsa; Duplessy, Jean-Claude; Zahn, Rainer (2007): Stable isotope ratios of planktonic foraminifera from North Atlantic surface sediments. PANGAEA, https://doi.org/10.1594/PANGAEA.832181
LeGrand, Allegra N; Schmidt, Gavin A (2006): Global gridded data set of the oxygen isotopic composition in seawater. Geophysical Research Letters, 33(12), L12604, https://doi.org/10.1029/2006GL026011
Coverage:
Median Latitude: 44.475549 * Median Longitude: -32.651022 * South-bound Latitude: 17.430000 * West-bound Longitude: -77.660000 * North-bound Latitude: 60.582167 * East-bound Longitude: -8.533833
Date/Time Start: 1977-11-17T00:00:00 * Date/Time End: 2003-05-31T23:30:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 0.55 m
Event(s):
CH69-K09  * Latitude: 41.760000 * Longitude: -47.350000 * Elevation: -4100.0 m * IGSN: BFBGX-111867 * Location: Newfoundland margin * Method/Device: Gravity corer (GC)
CHO288-54  * Latitude: 17.430000 * Longitude: -77.660000 * Elevation: -1020.0 m * Location: Atlantic
F1KR02  * Latitude: 58.080000 * Longitude: -10.720000 * Elevation: -2005.0 m * Campaign: FAEGAS * Method/Device: Grab (GRAB)
Comment:
Foraminiferal d18O data of all replicates can be find in auxiliary material from Cleroux et al. (2007), Seawater d18O data are from Legrande and Schmidt (2006) surface gridded data set.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEvent
2 Latitude of eventLatitude
3 Longitude of eventLongitude
4 Elevation of eventElevationm
5 DEPTH, sediment/rockDepth sedmGeocode
6 Globigerinoides ruber, Magnesium/Calcium ratioG. ruber Mg/Cammol/molCléroux, Caroline
7 Globigerinoides ruber white, Strontium/Calcium ratioG. ruber w Sr/Cammol/molCléroux, Caroline
8 Globigerinoides ruber, δ18OG. ruber δ18O‰ PDBCléroux, Carolinemean
9 δ18O, waterδ18O H2O‰ SMOWCléroux, CarolinegriddedGlobigerinoides ruber
10 Sea surface temperature, annual meanSST (1-12)°CCléroux, CarolineCalculated from stable oxygen isotopesGlobigerinoides ruber
11 Globigerina bulloides, Magnesium/Calcium ratioG. bulloides Mg/Cammol/molCléroux, Caroline
12 Globigerina bulloides, Strontium/Calcium ratioG. bulloides Sr/Cammol/molCléroux, Caroline
13 Globigerina bulloides, δ18OG. bulloides δ18O‰ PDBCléroux, Carolinemean
14 δ18O, waterδ18O H2O‰ SMOWCléroux, CarolinegriddedGlobigerina bulloides
15 Sea surface temperature, annual meanSST (1-12)°CCléroux, CarolineCalculated from stable oxygen isotopesGlobigerina bulloides
16 Pulleniatina obliquiloculata, Magnesium/Calcium ratioP. obliquiloculata Mg/Cammol/molCléroux, Caroline
17 Pulleniatina obliquiloculata, Strontium/Calcium ratioP. obliquiloculata Sr/Cammol/molCléroux, Caroline
18 Pulleniatina obliquiloculata, δ18OP. obliquiloculata δ18O‰ PDBCléroux, Carolinemean
19 δ18O, waterδ18O H2O‰ SMOWCléroux, CarolinegriddedPulleniatina obliquiloculata
20 Sea surface temperature, annual meanSST (1-12)°CCléroux, CarolineCalculated from stable oxygen isotopesPulleniatina obliquiloculata
21 Size fractionSize fractionCléroux, Caroline[µm]
22 Globorotalia inflata, Magnesium/Calcium ratioG. inflata Mg/Cammol/molCléroux, Caroline
23 Globorotalia inflata, Strontium/Calcium ratioG. inflata Sr/Cammol/molCléroux, Caroline
24 Globorotalia inflata, δ18OG. inflata δ18O‰ PDBCléroux, Carolinemean
25 δ18O, waterδ18O H2O‰ SMOWCléroux, CarolinegriddedGloborotalia inflata
26 Sea surface temperature, annual meanSST (1-12)°CCléroux, CarolineCalculated from stable oxygen isotopesGloborotalia inflata
27 Globorotalia truncatulinoides dextral, Magnesium/Calcium ratioG. truncatulinoides d Mg/Cammol/molCléroux, Caroline
28 Globorotalia truncatulinoides dextral, Strontium/Calcium ratioG. truncatulinoides d Sr/Cammol/molCléroux, Caroline
29 Globorotalia truncatulinoides dextral, δ18OG. truncatulinoides d δ18O‰ PDBCléroux, Carolinemean
30 δ18O, waterδ18O H2O‰ SMOWCléroux, CarolinegriddedGloborotalia truncatulinoides d
31 Sea surface temperature, annual meanSST (1-12)°CCléroux, CarolineCalculated from stable oxygen isotopesGloborotalia truncatulinoides d
32 Globorotalia truncatulinoides sinistral, Magnesium/Calcium ratioG. truncatulinoides s Mg/Cammol/molCléroux, Caroline
33 Globorotalia truncatulinoides sinistral, Strontium/Calcium ratioG. truncatulinoides s Sr/Cammol/molCléroux, Caroline
34 Globorotalia truncatulinoides sinistral, δ18OG. truncatulinoides s δ18O‰ PDBCléroux, Carolinemean
35 δ18O, waterδ18O H2O‰ SMOWCléroux, CarolinegriddedGloborotalia truncatulinoides s
36 Sea surface temperature, annual meanSST (1-12)°CCléroux, CarolineCalculated from stable oxygen isotopesGloborotalia truncatulinoides s
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
755 data points

Data

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

1 
Event		2 
Latitude		3 
Longitude		4 
Elevation [m]		5 
Depth sed [m]		6 
G. ruber Mg/Ca [mmol/mol]		7 
G. ruber w Sr/Ca [mmol/mol]		8 
G. ruber δ18O [‰ PDB]
(mean)		9 
δ18O H2O [‰ SMOW]
(Globigerinoides ruber, gridded)		10 
SST (1-12) [°C]
(Globigerinoides ruber, Calcul...)		11 
G. bulloides Mg/Ca [mmol/mol]		12 
G. bulloides Sr/Ca [mmol/mol]		13 
G. bulloides δ18O [‰ PDB]
(mean)		14 
δ18O H2O [‰ SMOW]
(Globigerina bulloides, gridded)		15 
SST (1-12) [°C]
(Globigerina bulloides, Calcul...)		16 
P. obliquiloculata Mg/Ca [mmol/mol]		17 
P. obliquiloculata Sr/Ca [mmol/mol]		18 
P. obliquiloculata δ18O [‰ PDB]
(mean)		19 
δ18O H2O [‰ SMOW]
(Pulleniatina obliquiloculata,...)		20 
SST (1-12) [°C]
(Pulleniatina obliquiloculata,...)		21 
Size fraction
([µm])		22 
G. inflata Mg/Ca [mmol/mol]		23 
G. inflata Sr/Ca [mmol/mol]		24 
G. inflata δ18O [‰ PDB]
(mean)		25 
δ18O H2O [‰ SMOW]
(Globorotalia inflata, gridded)		26 
SST (1-12) [°C]
(Globorotalia inflata, Calcula...)		27 
G. truncatulinoides d Mg/Ca [mmol/mol]		28 
G. truncatulinoides d Sr/Ca [mmol/mol]		29 
G. truncatulinoides d δ18O [‰ PDB]
(mean)		30 
δ18O H2O [‰ SMOW]
(Globorotalia truncatulinoides...)		31 
SST (1-12) [°C]
(Globorotalia truncatulinoides...)		32 
G. truncatulinoides s Mg/Ca [mmol/mol]		33 
G. truncatulinoides s Sr/Ca [mmol/mol]		34 
G. truncatulinoides s δ18O [‰ PDB]
(mean)		35 
δ18O H2O [‰ SMOW]
(Globorotalia truncatulinoides...)		36 
SST (1-12) [°C]
(Globorotalia truncatulinoides...)
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CH69-K0941.7600-47.3500-41000.00250-3151.370
CH69-K0941.7600-47.3500-41000.00355-4001.2911.310.512.286
CH69-K0941.7600-47.3500-41000.00355-4001.296
CH69-K0941.7600-47.3500-41000.00355-4001.298
CHO288-54 17.4300-77.6600-10200.005.1891.4995.3490.728.432.7801.4202.780.925.160
CHO288-5417.4300-77.6600-10200.005.3401.529
CHO288-5417.4300-77.6600-10200.005.5201.501
F1KS39 54.6300-16.3500-22090.002.2391.3372.2390.514.65
F1KS3954.6300-16.3500-22090.00355-4001.1941.3481.300.512.3281.3501.2601.350.510.840
F1KS3954.6300-16.3500-22090.00355-4001.6871.324
F1KS3954.6300-16.3500-22090.00355-4001.4281.362
F1KS3954.6300-16.3500-22090.00355-4001.4981.333
F1KS3954.6300-16.3500-22090.00250-3151.0701.3301.430.511.788
F1KS3954.6300-16.3500-22090.00250-3151.3501.310
F1KS3954.6300-16.3500-22090.00250-3151.1401.340
F1KR02 58.0800-10.7200-20050.002.4701.3562.4700.412.45355-4001.4941.3071.430.511.788
F1KR0258.0800-10.7200-20050.00250-3151.4201.3201.640.510.923
F1KR10 55.5998-14.4798-22160.002.2011.3352.2010.513.63355-4001.1331.3161.560.511.251
F1KR1055.5998-14.4798-22160.00250-3151.1501.3301.530.511.375
F1KR11 51.4798-17.6800-46540.00250-3151.3071.450.612.1201.4301.2501.300.612.161
F1KR1151.4798-17.6800-46540.00355-4001.3391.300.612.7451.1701.240
F1KR12 50.1500-17.3700-47870.00355-4001.3071.410.612.2861.2100.611.170
F1KR1250.1500-17.3700-47870.00355-4001.316
F2KR01 52.2798-35.2500-38860.002.0061.3872.0060.511.50250-3151.3501.2931.470.411.210
F2KR0152.2798-35.2500-38860.00355-4001.3691.3081.430.411.375
F2KR0152.2798-35.2500-38860.00355-4001.4061.299
F2KR0152.2798-35.2500-38860.00355-4001.287
INMD-042BX 28.5730-46.3570-37740.004.2004.2001.323.372.0901.4802.301.320.015355-4001.6891.3930.871.016.2891.8701.4601.901.016.9881.831.5301.911.017.383
INMD-042BX28.5730-46.3570-37740.002.5101.490355-4001.9451.4301.9401.4901.931.430
INMD-042BX28.5730-46.3570-37740.00250-3151.8801.4500.841.016.4191.961.400
INMD-042BX28.5730-46.3570-37740.00250-3151.9701.400
INMD-048BX 29.8130-43.2220-28380.004.5904.5901.323.742.2701.4702.261.321.563355-4001.6081.3950.511.017.8681.8301.4402.021.015.0781.4501.941.017.383
INMD-048BX29.8130-43.2220-28380.002.2401.470355-4001.6931.3842.0601.4201.831.390
INMD-048BX29.8130-43.2220-28380.002.2501.490355-4001.7621.3772.1801.4501.831.390
INMD-048BX29.8130-43.2220-28380.00355-4001.7771.3971.891.370
INMD-048BX29.8130-43.2220-28380.00355-4001.7871.4021.981.450
INMD-048BX29.8130-43.2220-28380.00355-4001.7911.3822.171.400
INMD-048BX29.8130-43.2220-28380.00250-3152.0101.4100.671.017.163
INMD-048BX29.8130-43.2220-28380.00250-3151.9901.420
INMD-052P 31.5320-37.8670-36310.00355-4001.6521.3970.570.917.1631.9501.4302.040.916.3761.821.3801.830.917.207
INMD-052P31.5320-37.8670-36310.00355-4001.8261.4302.1301.4601.841.390
INMD-052P31.5320-37.8670-36310.00250-3151.6201.4000.710.916.550
INMD-052P31.5320-37.8670-36310.00250-3151.7101.410
INMD-068BX 34.8050-28.3580-25200.003.6103.6101.222.30355-4001.7041.3850.840.815.5522.0701.3702.050.815.4222.151.4201.960.816.028
INMD-068BX34.8050-28.3580-25200.00355-4001.8701.3762.0401.3801.761.370
INMD-068BX34.8050-28.3580-25200.00250-3151.7401.3800.960.815.035
INMD-068BX34.8050-28.3580-25200.00250-3151.7601.410
INMD-068BX34.8050-28.3580-25200.00250-3151.8801.410
MD03-2649G 33.1878-76.2580-9580.002.4901.4102.541.023.228
MD03-2649G33.1878-76.2580-9580.002.6001.450
MD95-2002 47.4520-8.5338-21740.002.0891.4502.0890.616.862.4051.3582.8230.615.72355-4001.3601.3821.180.613.2491.8401.3401.830.612.6621.741.3101.740.612.078
MD95-200247.4520-8.5338-21740.003.2401.3570.615.72355-4001.5761.3631.8231.3031.330
MD95-200247.4520-8.5338-21740.00355-4001.6801.3341.8411.344
MD95-200247.4520-8.5338-21740.00250-3151.3701.320.612.662
MD95-200247.4520-8.5338-21740.00250-3151.4101.340
MD95-2005 57.0333-10.0638-21300.00355-4001.5831.3351.290.512.370
MD95-200557.0333-10.0638-21300.00250-3151.5101.3401.520.511.416
MD95-2014 60.5822-22.0753-23970.00355-4001.3751.3071.640.410.510
MD95-201460.5822-22.0753-23970.00250-3151.5001.3001.640.410.514
MD95-201460.5822-22.0753-23970.00250-3151.3001.320
MD95-2017 53.0427-33.5252-31000.001.9231.3921.9230.310.31355-4001.0501.3131.370.411.623
MD95-201753.0427-33.5252-31000.00355-4001.5761.281
MD95-201753.0427-33.5252-31000.00250-3151.1401.3101.620.410.596
MD95-201753.0427-33.5252-31000.00250-3151.4701.320
MD95-201753.0427-33.5252-31000.00250-3151.3101.300
MD95-2019 51.0947-43.2212-42620.00355-4001.3211.230.512.6201.2600.511.0461.2500.510.350
MD95-201951.0947-43.2212-42620.00250-3151.3101.380.511.995
MD95-201951.0947-43.2212-42620.00250-3151.310
MD95-2021 50.8635-42.7415-42830.00250-3151.2901.480.511.5811.2600.511.460
MD95-202150.8635-42.7415-42830.00250-3151.290
MD95-2023 50.9720-43.2173-41980.00250-3151.3061.560.611.6641.2840.69.300
MD95-202350.9720-43.2173-41980.00250-3151.2951.230
MD95-202350.9720-43.2173-41980.00250-3151.3061.202
MD95-202350.9720-43.2173-41980.00250-3151.320
MD95-202350.9720-43.2173-41980.00250-3151.320
MD95-2039 40.5785-10.3485-33810.001.2201.2901.250.612.4951.281.2701.280.612.580
MD95-203940.5785-10.3485-33810.001.2801.260
MD95-2041 37.8333-9.5108-11230.00355-4001.7751.3680.830.916.0281.8701.3701.870.915.160
MD99-2203 34.9730-75.2010-6200.004.4331.4464.4330.725.352.8821.4752.411.021.200
MD99-220334.9730-75.2010-6200.002.7701.477
MD99-220334.9730-75.2010-6200.002.3701.429
MD99-220334.9730-75.2010-6200.002.1551.456
MD99-220334.9730-75.2010-6200.002.0551.428
MD99-220334.9730-75.2010-6200.002.2091.471
MD99-220334.9730-75.2010-6200.551.9501.2941.950.814.270
SU90-02 40.5700-30.9617-22130.003.1751.3943.1750.816.99355-4001.8011.3470.880.714.9492.0601.3902.100.715.3791.641.3301.640.715.121
SU90-0240.5700-30.9617-22130.003.1711.3543.1710.716.55355-4001.8251.3722.1401.4401.631.370
SU90-0240.5700-30.9617-22130.003.3601.3793.3600.717.60355-4001.8371.368
SU90-0240.5700-30.9617-22130.00250-3151.6301.3900.890.714.906
SU90-0240.5700-30.9617-22130.00250-3151.7301.420
SU90-03 40.5050-32.0533-24750.003.0011.4393.0010.720.02355-4001.6221.3670.830.715.1601.9501.4101.970.715.1641.741.3401.710.715.164
SU90-0340.5050-32.0533-24750.00355-4001.6451.3931.9801.4101.691.370
SU90-0340.5050-32.0533-24750.00355-4001.6641.3481.390
SU90-0340.5050-32.0533-24750.00355-4001.402
SU90-0340.5050-32.0533-24750.00250-3151.6001.4000.720.715.640
SU90-0340.5050-32.0533-24750.00250-3151.5901.390
SU90-0340.5050-32.0533-24750.00250-3151.7501.390
SU90-0340.5050-32.0533-24750.00250-3151.8101.370
SU90-06 42.0300-32.7117-35100.002.9631.4362.9640.718.80355-4001.5871.3810.970.614.1381.6701.3801.760.614.3511.861.4101.770.614.607
SU90-0642.0300-32.7117-35100.002.9651.430355-4001.5791.3651.8401.4301.681.370
SU90-0642.0300-32.7117-35100.00250-3151.3301.3500.980.614.095
SU90-0642.0300-32.7117-35100.00250-3151.5801.380
SU90-0642.0300-32.7117-35100.00250-3151.350
SU90-08 43.3533-30.4083-30800.003.0441.4233.0440.720.11355-4001.4941.3620.940.614.2651.8901.3601.910.614.0951.801.3701.800.614.180
SU90-0843.3533-30.4083-30800.00355-4001.5071.3991.9301.380
SU90-0843.3533-30.4083-30800.00355-4001.6391.358
SU90-0843.3533-30.4083-30800.00355-4001.6461.345
SU90-0843.3533-30.4083-30800.00355-4001.361
SU90-0843.3533-30.4083-30800.00250-3151.5501.3600.870.614.564
SU90-0843.3533-30.4083-30800.00250-3151.5601.350
SU90-0843.3533-30.4083-30800.00250-3151.5801.380
SU90-0843.3533-30.4083-30800.00250-3151.5801.380
SU90-0843.3533-30.4083-30800.00250-3151.370
SU90-37 55.1117-20.7333-26760.002.1611.3432.1610.412.83355-4001.0001.3311.430.411.375
SU90-3755.1117-20.7333-26760.00355-4001.0651.304
SU90-3755.1117-20.7333-26760.00355-4001.1511.319
SU90-3755.1117-20.7333-26760.00355-4001.4371.307
SU90-3755.1117-20.7333-26760.00250-3151.1201.3201.420.411.416
SU90-3755.1117-20.7333-26760.00250-3151.2201.340