Came, Rosemarie E; Oppo, Delia W; McManus, Jerry F (2007): (Table DR1) Accelerator mass spectrometry radiocarbon dates and calendar ages of sediments from ODP Hole 162-984C [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.721799, Supplement to: Came, RE et al. (2007): Amplitude and timing of temperature and salinity variability in the subpolar North Atlantic over the past 10 k.y. Geology, 35(4), 315-318, https://doi.org/10.1130/G23455A.1
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Abstract:
Paired planktic foraminiferal d18O and Mg/Ca data reveal trends of increasing temperatures (~3 °C) and salinities in the subpolar North Atlantic over the course of the Holocene, which were punctuated by abrupt events. The trends likely reflect an insolation-forced northward retreat of the boundary between polar and North Atlantic subsurface waters. The superimposed variability does not appear to be periodic, but tends to recur within a broad millennial band. The records provide convincing evidence of open-ocean cooling (nearly 2°C) and freshening during the 8.2 ka event, and suggest similar conditions at 9.3 ka. However, the two largest temperature oscillations in our record (~2°C) occurred during the past 4 k.y., suggesting a recent increase in temperature variability relative to the mid-Holocene, perhaps in response to neoglaciation, which began at about this time.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 61.425300 * Longitude: -24.082500
Date/Time Start: 1995-07-28T08:20:00 * Date/Time End: 1995-07-29T01:45:00
Minimum DEPTH, sediment/rock: 0.010 m * Maximum DEPTH, sediment/rock: 2.835 m
Event(s):
162-984C * Latitude: 61.425300 * Longitude: -24.082500 * Date/Time Start: 1995-07-28T08:20:00 * Date/Time End: 1995-07-29T01:45:00 * Elevation: -1649.0 m * Penetration: 290.4 m * Recovery: 296 m * Location: South Atlantic Ocean * Campaign: Leg162 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 31 core; 290.4 m cored; 0 m drilled; 101.9 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | Depth, top/min | Depth top | m | Came, Rosemarie E | ||
| 3 | Depth, bottom/max | Depth bot | m | Came, Rosemarie E | ||
| 4 | Sample code/label | Sample label | Came, Rosemarie E | DSDP/ODP/IODP sample designation | ||
| 5 | Sample, optional label/labor no | Lab no | Came, Rosemarie E | |||
| 6 | Species | Species | Came, Rosemarie E | |||
| 7 | Age, dated | Age dated | ka | Came, Rosemarie E | Accelerator mass spectrometry (AMS) | |
| 8 | Age, dated standard deviation | Age dated std dev | ± | Came, Rosemarie E | Calculated | |
| 9 | Sigma | Sigma | Came, Rosemarie E | Calculated | 1 or 2 | |
| 10 | Calendar age | Cal age | ka BP | Came, Rosemarie E | Calculated | minimal |
| 11 | Calendar age | Cal age | ka BP | Came, Rosemarie E | Calculated | maximal |
| 12 | Calendar age | Cal age | ka BP | Came, Rosemarie E | Calculated |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
231 data points
Data
| 1 Depth sed [m] | 2 Depth top [m] | 3 Depth bot [m] | 4 Sample label (DSDP/ODP/IODP sample designation) | 5 Lab no | 6 Species | 7 Age dated [ka] (Accelerator mass spectrometry...) | 8 Age dated std dev [±] (Calculated) | 9 Sigma (1 or 2, Calculated) | 10 Cal age [ka BP] (minimal, Calculated) | 11 Cal age [ka BP] (maximal, Calculated) | 12 Cal age [ka BP] (Calculated) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.010 | 0.00 | 0.02 | 162-984C-1H-01,0-2 | OS-19325 | G. bulloides | 0.805 | 0.040 | 1 | 0.415 | 0.489 | 0.446 |
| 0.010 | 0.00 | 0.02 | 162-984C-1H-01,0-2 | OS-19325 | G. bulloides | 0.805 | 0.040 | 2 | 0.333 | 0.506 | |
| 0.310 | 0.30 | 0.32 | 162-984C-1H-01,30-32 | OS-36742 | G. bulloides | 1.440 | 0.035 | 1 | 0.940 | 1.029 | 0.985 |
| 0.310 | 0.30 | 0.32 | 162-984C-1H-01,30-32 | OS-36742 | G. bulloides | 1.440 | 0.035 | 2 | 0.906 | 1.072 | |
| 0.590 | 0.58 | 0.60 | 162-984C-1H-01,58-60 | OS-36743 | G. bulloides | 2.200 | 0.040 | 1 | 1.743 | 1.854 | 1.798 |
| 0.590 | 0.58 | 0.60 | 162-984C-1H-01,58-60 | OS-36743 | G. bulloides | 2.200 | 0.040 | 2 | 1.689 | 1.900 | |
| 0.950 | 0.94 | 0.96 | 162-984C-1H-01,94-96 | OS-19326 | G. bulloides | 3.690 | 0.040 | 1 | 3.550 | 3.667 | 3.604 |
| 0.950 | 0.94 | 0.96 | 162-984C-1H-01,94-96 | OS-19326 | G. bulloides | 3.690 | 0.040 | 2 | 3.470 | 3.716 | |
| 1.230 | 1.22 | 1.24 | 162-984C-1H-01,122-124 | OS-36744 | G. bulloides | 4.380 | 0.040 | 1 | 4.441 | 4.576 | 4.524 |
| 1.230 | 1.22 | 1.24 | 162-984C-1H-01,122-124 | OS-36744 | G. bulloides | 4.380 | 0.040 | 2 | 4.406 | 4.655 | |
| 1.630 | 1.62 | 1.64 | 162-984C-1H-02,12-14 | OS-36745 | G. bulloides | 5.670 | 0.045 | 1 | 6.009 | 6.148 | 6.075 |
| 1.630 | 1.62 | 1.64 | 162-984C-1H-02,12-14 | OS-36745 | G. bulloides | 5.670 | 0.045 | 2 | 5.942 | 6.190 | |
| 1.950 | 1.94 | 1.96 | 162-984C-1H-02,44-46 | OS-19322 | G. bulloides | 6.830 | 0.065 | 1 | 7.293 | 7.412 | 7.350 |
| 1.950 | 1.94 | 1.96 | 162-984C-1H-02,44-46 | OS-19322 | G. bulloides | 6.830 | 0.065 | 2 | 7.228 | 7.471 | |
| 2.150 | 2.14 | 2.16 | 162-984C-1H-02,64-66 | OS-36746 | G. bulloides | 7.390 | 0.050 | 1 | 7.808 | 7.919 | 7.857 |
| 2.150 | 2.14 | 2.16 | 162-984C-1H-02,64-66 | OS-36746 | G. bulloides | 7.390 | 0.050 | 2 | 7.733 | 7.956 | |
| 2.535 | 2.53 | 2.54 | 162-984C-1H-02,103-104 | OS-22738 | G. bulloides | 8.730 | 0.055 | 1 | 9.354 | 9.473 | 9.408 |
| 2.535 | 2.53 | 2.54 | 162-984C-1H-02,103-104 | OS-22738 | G. bulloides | 8.730 | 0.055 | 2 | 9.276 | 9.508 | |
| 2.735 | 2.73 | 2.74 | 162-984C-1H-02,123-124 | OS-22943 | G. bulloides | 9.360 | 0.045 | 1 | 10.161 | 10.237 | 10.204 |
| 2.735 | 2.73 | 2.74 | 162-984C-1H-02,123-124 | OS-22943 | G. bulloides | 9.360 | 0.045 | 2 | 10.116 | 10.326 | |
| 2.835 | 2.83 | 2.84 | 162-984C-1H-02,133-134 | OS-22740 | G. bulloides | 9.410 | 0.055 | 1 | 10.187 | 10.319 | 10.259 |
| 2.835 | 2.83 | 2.84 | 162-984C-1H-02,133-134 | OS-22740 | G. bulloides | 9.410 | 0.055 | 2 | 10.152 | 10.407 |