Ronge, Thomas A; Nürnberg, Dirk; Tiedemann, Ralf (2018): Mg/Ca-derived temperature estimates for ODP Site 202-1236 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.896166
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Abstract:
Here we use Mg/Ca temperature estimates from subsurface and thermocline dwelling foraminifera to reconstruct the meridional Plio‐Pleistocene evolution of the Southeast Pacific thermocline, in relation to atmospheric circulation changes. Our data indicate a change in the thermocline, responding to the northward displacement of the Intertropical Convergence Zone/South Pacific High system between ~3.8 and 3.5 Ma. After 3.5 Ma, we record a second major phase of thermocline shoaling, which points to the ITCZ/SPH‐system movement toward its modern position along with the gradual cooling of the Northern Hemisphere and its associated glaciation.
Supplement to:
Ronge, Thomas A; Nürnberg, Dirk; Tiedemann, Ralf (2020): Plio‐Pleistocene Variability of the East Pacific Thermocline and Atmospheric Systems. Paleoceanography and Paleoclimatology, 35(1), e2019PA003758, https://doi.org/10.1029/2019PA003758
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 5472008: Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Coverage:
Median Latitude: -21.358983 * Median Longitude: -81.436080 * South-bound Latitude: -21.359010 * West-bound Longitude: -81.436160 * North-bound Latitude: -21.358960 * East-bound Longitude: -81.436000
Date/Time Start: 2002-04-22T13:45:00 * Date/Time End: 2002-04-24T08:45:00
Minimum Elevation: -1323.7 m * Maximum Elevation: -1322.5 m
Event(s):
202-1236A * Latitude: -21.358980 * Longitude: -81.436000 * Date/Time Start: 2002-04-22T13:45:00 * Date/Time End: 2002-04-23T13:40:00 * Elevation: -1323.7 m * Penetration: 207.7 m * Recovery: 197.23 m * Location: South Pacific Ocean * Campaign: Leg202 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 24 cores; 207.7 m cored; 0 m drilled; 95 % recovery
202-1236B * Latitude: -21.359010 * Longitude: -81.436080 * Date/Time Start: 2002-04-23T13:40:00 * Date/Time End: 2002-04-24T08:45:00 * Elevation: -1322.5 m * Penetration: 122.8 m * Recovery: 125.1 m * Location: South Pacific Ocean * Campaign: Leg202 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 13 cores; 122.8 m cored; 0 m drilled; 101.9 % recovery
202-1236C * Latitude: -21.358960 * Longitude: -81.436160 * Date/Time: 2002-04-24T08:45:00 * Elevation: -1322.5 m * Penetration: 167.3 m * Recovery: 167.74 m * Location: South Pacific Ocean * Campaign: Leg202 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 18 cores; 164.5 m cored; 2.8 m drilled; 102 % recovery
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | Event label | Event | Ronge, Thomas A | |||
2 | Sample code/label | Sample label | Ronge, Thomas A | DSDP/ODP/IODP sample designation | ||
3 | Depth, composite | Depth comp | mcd | Ronge, Thomas A | ||
4 | AGE | Age | ka BP | Ronge, Thomas A | Geocode | |
5 | Globorotalia inflata, Magnesium/Calcium ratio | G. inflata Mg/Ca | mmol/mol | Ronge, Thomas A | ||
6 | Mixed layer temperature | MLT | °C | Ronge, Thomas A | Calculated from Mg/Ca ratios (Groeneveld and Chiessi, 2011) | G. inflata |
7 | Trilobatus sacculifer, Manganese/Calcium ratio | T. sacculifer Mn/Ca | mmol/mol | Ronge, Thomas A | ||
8 | Sea surface temperature, annual mean | SST (1-12) | °C | Ronge, Thomas A | Calculated from Mg/Ca ratios (Anand et al., 2003) | T. sacculifer |
9 | Globorotalia tumida, Magnesium/Calcium ratio | G. tumida Mg/Ca | mmol/mol | Ronge, Thomas A | ||
10 | Photic Zone temperature | PZT | °C | Ronge, Thomas A | Calculated from Mg/Ca ratios (Anand et al., 2003) | G. tumida |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
702 data points
Data
1 Event | 2 Sample label | 3 Depth comp [mcd] | 4 Age [ka BP] | 5 G. inflata Mg/Ca [mmol/mol] | 6 MLT [°C] | 7 T. sacculifer Mn/Ca [mmol/mol] | 8 SST (1-12) [°C] | 9 G. tumida Mg/Ca [mmol/mol] | 10 PZT [°C] |
---|---|---|---|---|---|---|---|---|---|
202-1236B | 202-1236B-1H-1,10 | 0.10 | 135.87 | 1.84 | 12.35 | 2.670 | 21.670 | 1.440 | 14.830 |
202-1236B | 202-1236B-1H-1,12 | 0.12 | 139.80 | 1.81 | 12.11 | 2.800 | 22.200 | 1.530 | 15.440 |
202-1236B | 202-1236B-1H-1,16 | 0.16 | 147.67 | 1.94 | 13.06 | 2.630 | 21.510 | 1.370 | 14.240 |
202-1236B | 202-1236B-1H-1,20 | 0.20 | 155.53 | 1.85 | 12.41 | 2.450 | 20.710 | 1.310 | 13.740 |
202-1236B | 202-1236B-1H-1,24 | 0.24 | 163.40 | 1.94 | 13.05 | 2.550 | 21.130 | 1.430 | 14.720 |
202-1236B | 202-1236B-1H-1,28 | 0.28 | 171.27 | 1.84 | 12.34 | 2.730 | 21.920 | 1.290 | 13.590 |
202-1236B | 202-1236B-1H-1,32 | 0.32 | 179.13 | 1.95 | 13.13 | 2.800 | 22.190 | 1.540 | 15.560 |
202-1236B | 202-1236B-1H-1,36 | 0.36 | 187.00 | 2.03 | 13.64 | 2.900 | 22.590 | 1.470 | 15.020 |
202-1236B | 202-1236B-1H-1,40 | 0.40 | 198.91 | 1.87 | 12.55 | 2.570 | 21.260 | 1.390 | 14.420 |
202-1236B | 202-1236B-1H-1,44 | 0.44 | 210.82 | 1.92 | 12.88 | 3.030 | 23.080 | 1.480 | 15.130 |
202-1236B | 202-1236B-1H-1,48 | 0.48 | 222.73 | 1.89 | 12.67 | 2.610 | 21.420 | 1.520 | 15.370 |
202-1236B | 202-1236B-1H-1,52 | 0.52 | 234.64 | 2.00 | 13.47 | 2.480 | 20.840 | 1.700 | 16.640 |
202-1236B | 202-1236B-1H-1,56 | 0.56 | 246.25 | 2.00 | 13.43 | 1.660 | 16.410 | ||
202-1236B | 202-1236B-1H-1,60 | 0.60 | 257.55 | 1.93 | 12.99 | 1.520 | 15.380 | ||
202-1236B | 202-1236B-1H-1,70 | 0.70 | 285.80 | 1.91 | 12.82 | 2.720 | 21.860 | 1.460 | 14.920 |
202-1236B | 202-1236B-1H-1,80 | 0.80 | 310.34 | 2.00 | 13.42 | 2.950 | 22.770 | 1.650 | 16.300 |
202-1236B | 202-1236B-1H-1,90 | 0.90 | 332.64 | 1.84 | 12.34 | 2.920 | 22.650 | 1.610 | 16.020 |
202-1236B | 202-1236B-1H-1,100 | 1.00 | 355.86 | 1.93 | 13.00 | 2.700 | 21.780 | 1.330 | 13.960 |
202-1236B | 202-1236B-1H-1,120 | 1.20 | 402.29 | 1.92 | 12.93 | 2.750 | 22.000 | 1.610 | 16.010 |
202-1236B | 202-1236B-1H-1,140 | 1.40 | 473.30 | 1.74 | 11.60 | 2.620 | 21.460 | 1.420 | 14.670 |
202-1236B | 202-1236B-1H-2,8 | 1.59 | 553.83 | 1.81 | 12.16 | 2.830 | 22.320 | 1.660 | 16.390 |
202-1236B | 202-1236B-1H-2,28 | 1.79 | 645.54 | 2.15 | 14.37 | 2.730 | 21.900 | 1.680 | 16.510 |
202-1236B | 202-1236B-1H-2,48 | 1.99 | 704.90 | 1.89 | 12.66 | 2.840 | 22.370 | 1.640 | 16.240 |
202-1236B | 202-1236B-1H-2,68 | 2.19 | 749.38 | 1.83 | 12.29 | 2.770 | 22.090 | 1.720 | 16.780 |
202-1236B | 202-1236B-1H-2,88 | 2.39 | 799.39 | 1.96 | 13.21 | 2.820 | 22.260 | 1.570 | 15.760 |
202-1236B | 202-1236B-1H-2,128 | 2.79 | 898.61 | 1.95 | 13.11 | 2.830 | 22.300 | 1.930 | 18.030 |
202-1236B | 202-1236B-1H-3,16 | 3.18 | 971.76 | 1.90 | 12.79 | 2.720 | 21.890 | 1.600 | 15.970 |
202-1236B | 202-1236B-1H-3,56 | 3.58 | 1034.80 | 1.88 | 12.66 | 2.800 | 22.210 | 1.780 | 17.150 |
202-1236B | 202-1236B-1H-3,96 | 3.98 | 1148.80 | 1.76 | 11.78 | 2.740 | 21.950 | 1.700 | 16.650 |
202-1236B | 202-1236B-1H-3,136 | 4.38 | 1247.90 | 1.85 | 12.45 | 2.830 | 22.330 | 1.740 | 16.940 |
202-1236B | 202-1236B-1H-4,24 | 4.77 | 1333.80 | 2.00 | 13.44 | 3.220 | 23.740 | 1.880 | 17.740 |
202-1236B | 202-1236B-1H-4,64 | 5.17 | 1438.50 | 1.94 | 13.06 | 2.980 | 22.880 | 1.760 | 17.030 |
202-1236B | 202-1236B-1H-4,104 | 5.57 | 1516.10 | 1.64 | 10.83 | 2.780 | 22.130 | 1.920 | 17.980 |
202-1236B | 202-1236B-1H-4,144 | 5.97 | 1632.50 | 1.90 | 12.79 | 2.640 | 21.540 | 1.770 | 17.110 |
202-1236B | 202-1236B-1H-5,32 | 6.36 | 1695.20 | 1.87 | 12.57 | 2.880 | 22.520 | 1.930 | 18.060 |
202-1236B | 202-1236B-1H-5,72 | 6.76 | 1774.70 | 1.93 | 12.95 | 2.740 | 21.940 | 2.090 | 18.920 |
202-1236C | 202-1236C-1H-3,76 | 7.15 | 1862.20 | 1.900 | 17.900 | ||||
202-1236C | 202-1236C-1H-3,116 | 7.55 | 1953.00 | 1.92 | 12.88 | 2.700 | 21.790 | 1.690 | 16.570 |
202-1236C | 202-1236C-1H-4,4 | 7.94 | 2062.10 | 2.18 | 14.55 | 3.010 | 22.980 | 1.860 | 17.620 |
202-1236C | 202-1236C-1H-4,44 | 8.34 | 2135.10 | 1.75 | 11.71 | 2.980 | 22.870 | 1.900 | 17.890 |
202-1236C | 202-1236C-1H-4,84 | 8.74 | 2206.40 | 1.68 | 11.14 | 2.880 | 22.490 | 1.720 | 16.790 |
202-1236C | 202-1236C-1H-4,124 | 9.14 | 2277.70 | 2.04 | 13.73 | 3.130 | 23.430 | 1.950 | 18.140 |
202-1236C | 202-1236C-1H-5,0 | 9.40 | 2323.00 | 1.72 | 11.47 | 4.040 | 26.265 | 1.911 | 17.947 |
202-1236C | 202-1236C-1H-5,40 | 9.80 | 2377.90 | 1.92 | 12.87 | 3.374 | 24.263 | 1.941 | 18.120 |
202-1236C | 202-1236C-1H-5,80 | 10.20 | 2434.40 | 1.79 | 11.98 | 3.223 | 23.754 | 1.948 | 18.160 |
202-1236C | 202-1236C-1H-5,120 | 10.60 | 2490.90 | 1.71 | 11.36 | 2.678 | 21.696 | 2.001 | 18.458 |
202-1236C | 202-1236C-1H-6,9 | 11.00 | 2547.20 | 1.86 | 12.50 | 2.944 | 22.748 | 2.040 | 18.673 |
202-1236C | 202-1236C-1H-6,49 | 11.40 | 2603.20 | 1.86 | 12.52 | 2.911 | 22.623 | 2.023 | 18.580 |
202-1236C | 202-1236C-1H-6,89 | 11.80 | 2659.20 | 1.96 | 13.20 | 2.755 | 22.011 | 1.956 | 18.205 |
202-1236C | 202-1236C-1H-6,129 | 12.20 | 2715.10 | 1.73 | 11.52 | 2.530 | 21.064 | 1.969 | 18.279 |
202-1236B | 202-1236B-2H-3,49 | 12.58 | 2782.40 | 2.12 | 14.20 | 2.828 | 22.302 | 2.135 | 19.178 |
202-1236B | 202-1236B-2H-3,89 | 12.98 | 2869.00 | 2.01 | 13.51 | 2.906 | 22.604 | 1.826 | 17.441 |
202-1236B | 202-1236B-2H-3,129 | 13.38 | 2969.40 | 1.86 | 12.45 | 2.809 | 22.227 | 2.239 | 19.707 |
202-1236B | 202-1236B-2H-4,20 | 13.80 | 3051.20 | 2.05 | 13.74 | 2.695 | 21.766 | 1.945 | 18.143 |
202-1236B | 202-1236B-2H-4,60 | 14.20 | 3115.90 | 2.05 | 13.78 | 2.711 | 21.832 | 2.189 | 19.456 |
202-1236B | 202-1236B-2H-4,100 | 14.60 | 3170.40 | 2.06 | 13.81 | 2.865 | 22.446 | 1.994 | 18.419 |
202-1236B | 202-1236B-2H-4,140 | 15.00 | 3222.10 | 1.98 | 13.32 | 2.903 | 22.593 | 2.131 | 19.158 |
202-1236B | 202-1236B-2H-5,30 | 15.40 | 3273.70 | 1.89 | 12.73 | 2.950 | 22.771 | 2.322 | 20.111 |
202-1236B | 202-1236B-2H-5,70 | 15.80 | 3325.40 | 2.07 | 13.87 | 2.963 | 22.820 | 2.351 | 20.249 |
202-1236C | 202-1236C-2H-3,41 | 16.30 | 3390.00 | 2.21 | 14.74 | 2.614 | 21.427 | 2.121 | 19.105 |
202-1236C | 202-1236C-2H-3,81 | 16.70 | 3441.60 | 2.29 | 15.23 | 2.574 | 21.256 | 2.309 | 20.049 |
202-1236C | 202-1236C-2H-3,121 | 17.10 | 3493.30 | 2.22 | 14.84 | 3.187 | 23.630 | 2.226 | 19.642 |
202-1236C | 202-1236C-2H-4,10 | 17.50 | 3544.90 | 2.10 | 14.05 | 2.593 | 21.338 | 2.338 | 20.188 |
202-1236C | 202-1236C-2H-4,50 | 17.90 | 3621.50 | 2.00 | 13.47 | 2.508 | 20.967 | 2.009 | 18.502 |
202-1236C | 202-1236C-2H-4,90 | 18.30 | 3699.30 | 2.23 | 14.87 | 2.531 | 21.069 | 2.107 | 19.032 |
202-1236C | 202-1236C-2H-4,130 | 18.70 | 3768.90 | 2.13 | 14.27 | 2.493 | 20.901 | 2.188 | 19.451 |
202-1236C | 202-1236C-2H-5,19 | 19.10 | 3833.80 | 2.14 | 14.31 | 2.680 | 21.704 | 1.921 | 18.005 |
202-1236C | 202-1236C-2H-5,59 | 19.50 | 3880.10 | 2.16 | 14.43 | 2.533 | 21.078 | 1.638 | 16.234 |
202-1236C | 202-1236C-2H-5,99 | 19.90 | 3928.10 | 2.38 | 15.73 | 2.348 | 20.235 | 1.718 | 16.764 |
202-1236C | 202-1236C-2H-5,139 | 20.30 | 3981.40 | 2.05 | 13.77 | 2.313 | 20.068 | 1.575 | 15.798 |
202-1236C | 202-1236C-2H-6,28 | 20.70 | 4046.60 | 2.25 | 14.98 | 2.380 | 20.385 | 1.962 | 18.239 |
202-1236B | 202-1236B-3H-2,39 | 21.12 | 4118.30 | 2.39 | 15.81 | 2.516 | 21.003 | 1.961 | 18.234 |
202-1236B | 202-1236B-3H-2,79 | 21.52 | 4186.50 | 2.11 | 14.17 | 2.432 | 20.626 | 1.656 | 16.355 |
202-1236B | 202-1236B-3H-2,119 | 21.92 | 4247.70 | 2.528 | 21.056 | 1.588 | 15.890 | ||
202-1236B | 202-1236B-3H-3,8 | 22.32 | 4303.20 | 2.357 | 20.277 | 1.661 | 16.389 | ||
202-1236B | 202-1236B-3H-3,48 | 22.72 | 4353.40 | 2.680 | 21.704 | 2.177 | 19.395 | ||
202-1236B | 202-1236B-3H-3,88 | 23.12 | 4395.20 | 2.670 | 21.663 | 2.186 | 19.441 | ||
202-1236B | 202-1236B-3H-3,128 | 23.52 | 4432.20 | 2.731 | 21.914 | 2.097 | 18.979 | ||
202-1236B | 202-1236B-3H-4,17 | 23.92 | 4474.40 | 2.428 | 20.607 | 1.950 | 18.171 | ||
202-1236B | 202-1236B-3H-4,57 | 24.32 | 4517.60 | 2.138 | 19.194 | 2.025 | 18.591 | ||
202-1236B | 202-1236B-3H-4,97 | 24.72 | 4560.80 | 2.509 | 20.972 | 1.674 | 16.476 | ||
202-1236B | 202-1236B-3H-4,137 | 25.12 | 4598.10 | 2.610 | 21.410 | 1.797 | 17.263 | ||
202-1236B | 202-1236B-3H-5,26 | 25.52 | 4628.10 | 2.632 | 21.504 | 2.010 | 18.508 | ||
202-1236C | 202-1236C-3H-2,79 | 25.94 | 4656.90 | 2.369 | 20.334 | 2.062 | 18.792 | ||
202-1236C | 202-1236C-3H-2,119 | 26.34 | 4683.30 | 2.382 | 20.395 | 2.075 | 18.862 | ||
202-1236C | 202-1236C-3H-3,8 | 26.74 | 4709.80 | 2.325 | 20.126 | 2.275 | 19.884 | ||
202-1236C | 202-1236C-3H-3,48 | 27.14 | 4736.30 | 2.612 | 21.419 | 2.240 | 19.712 | ||
202-1236C | 202-1236C-3H-3,88 | 27.54 | 4764.50 | 2.509 | 20.972 | 2.418 | 20.561 | ||
202-1236C | 202-1236C-3H-3,128 | 27.94 | 4794.90 | 2.193 | 19.476 | 2.158 | 19.297 | ||
202-1236C | 202-1236C-3H-4,17 | 28.34 | 4825.60 | 2.525 | 21.043 | 2.185 | 19.436 | ||
202-1236C | 202-1236C-3H-4,57 | 28.74 | 4862.90 | 2.199 | 19.507 | ||||
202-1236C | 202-1236C-3H-4,97 | 29.14 | 4901.00 | 2.450 | 20.707 | 2.247 | 19.746 | ||
202-1236A | 202-1236A-4H-2,30 | 29.54 | 4938.90 | ||||||
202-1236A | 202-1236A-4H-2,34 | 29.58 | 4942.00 | 2.367 | 20.325 | ||||
202-1236A | 202-1236A-4H-2,74 | 29.98 | 4972.60 | 2.029 | 18.613 | ||||
202-1236A | 202-1236A-4H-2,114 | 30.38 | 5013.60 | 2.015 | 18.536 |