Lund, David C; Mix, Alan C (1998): Age determination of sediment core W8709A-13 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.866375, Supplement to: Lund, DC; Mix, AC (1998): Millennial-scale deep water oscillations: Reflections of the North Atlantic in the deep Pacific from 10 to 60 ka. Paleoceanography, 13(1), 10-19, https://doi.org/10.1029/97PA02984
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Abstract:
Northeast Pacific benthic foraminiferal d18O and d13 reveal repeated millennial-scale events of strong deep-sea ventilation (associated with nutrient depletion and/or high gas exchange) during stadial (cool, high ice volume) episodes from 10 to 60 ka, opposite the pattern in the deep North Atlantic. Two climate mechanisms may explain this pattern. North Pacific surface waters, chilled by atmospheric transmission from a cold North Atlantic and made saltier by reduced freshwater vapor transports, could have ventilated the deep Pacific from above. Alternatively, faster turnover of Pacific bottom and mid-depth waters, driven by Southern Ocean winds, may have compensated for suppressed North Atlantic Deep Water production during stadial intervals. During the Younger Dryas event (~11.6-13.0 cal ka), ventilation of the deep NE Pacific (~2700 m) lagged that in the Santa Barbara Basin (~450 m) by >500 years, suggesting that the NE Pacific was first ventilated at intermediate depth from above and then at greater depth from below. This apparent lag may reflect the adjustment time of global thermohaline circulation.
Related to:
Bond, Gerard C; Broecker, Wallace S; Johnsen, Sigfús Jóhann; McManus, James; Labeyrie, Laurent D; Jouzel, Jean; Bonani, Georges (1993): Correlations between climate records from North Atlantic sediments and Greenland ice. Nature, 365(6442), 143-147, https://doi.org/10.1038/365143a0
Gardner, James V; Dean, Walter E; Dartnell, Peter (1997): Biogenic sedimentation beneath the California Current system for the past 30 kyr and its paleoceanographic significance. Paleoceanography, 12(2), 207-226, https://doi.org/10.1029/96PA03567
Imbrie, John D; Hays, James D; Martinson, Douglas G; McIntyre, Andrew; Mix, Alan C; Morley, Joseph J; Pisias, Nicklas G; Prell, Warren L; Shackleton, Nicholas J (1984): The orbital theory of Pleistocene climate: support from a revised chronology of the marine d18O record. In: Berger, A L, et al. (eds.), Milankovitch and Climate. 1: Dordrecht (D. Reidel Publishing Company), 269-305, hdl:10013/epic.48655.d001
Lyle, Mitchell W; Zahn, Rainer; Prahl, Frederick G; Dymond, Jack R; Collier, Robert W; Pisias, Nicklas G; Suess, Erwin (1992): Paleoproductivity and carbon burial across the California current: the multitracer transect 42°N. Paleoceanography, 7(3), 251-272, https://doi.org/10.1029/92PA00696
Coverage:
Latitude: 42.117000 * Longitude: -125.750000
Date/Time Start: 1987-10-02T00:00:00 * Date/Time End: 1987-10-02T00:00:00
Minimum DEPTH, sediment/rock: 0.275 m * Maximum DEPTH, sediment/rock: 7.600 m
Event(s):
W8709A-13 * Latitude: 42.117000 * Longitude: -125.750000 * Date/Time: 1987-10-02T00:00:00 * Elevation: -2712.0 m * Campaign: W8709A * Basis: Wecoma * Method/Device: Piston corer (PC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Lund, David C | Geocode | |
| 2 | Depth, top/min | Depth top | m | Lund, David C | ||
| 3 | Depth, bottom/max | Depth bot | m | Lund, David C | ||
| 4 | Age, dated | Age dated | ka | Lund, David C | Age, 14C AMS | raw |
| 5 | Age, dated standard deviation | Age dated std dev | ± | Lund, David C | Age, 14C AMS | raw |
| 6 | Age, dated | Age dated | ka | Lund, David C | Age, 14C calibrated | reservoir corrected |
| 7 | Calendar age | Cal age | ka BP | Lund, David C | Age, 14C calibrated | inferred |
| 8 | Calendar age | Cal age | ka BP | Lund, David C | Age, 14C calibrated | inferred |
| 9 | Age, dated material | Dated material | Lund, David C | |||
| 10 | Sample mass | Samp m | g | Lund, David C | ||
| 11 | Reference/source | Reference | Lund, David C |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
227 data points
Data
| 1 Depth sed [m] | 2 Depth top [m] | 3 Depth bot [m] | 4 Age dated [ka] (raw, Age, 14C AMS) | 5 Age dated std dev [±] (raw, Age, 14C AMS) | 6 Age dated [ka] (reservoir corrected, Age, 14C...) | 7 Cal age [ka BP] (inferred, Age, 14C calibrated) | 8 Cal age [ka BP] (inferred, Age, 14C calibrated) | 9 Dated material | 10 Samp m [g] | 11 Reference |
|---|---|---|---|---|---|---|---|---|---|---|
| 0.275 | 0.25 | 0.30 | 7.00 | 0.23 | 6.28 | 7.18 | 7.18 | mixed planktonic species | Gardner et al. (1997) | |
| 0.975 | 0.95 | 1.00 | 11.01 | 0.36 | 8.63 | 9.64 | 9.64 | mixed benthic species | Gardner et al. (1997) | |
| 1.275 | 1.25 | 1.30 | 11.51 | 0.33 | 9.14 | 10.20 | 10.27 | mixed benthic species | Gardner et al. (1997) | |
| 1.275 | 1.25 | 1.30 | 9.96 | 0.23 | 9.24 | 10.34 | 10.27 | mixed planktonic species | Gardner et al. (1997) | |
| 1.390 | 1.38 | 1.40 | 10.72 | 0.07 | 10.00 | 11.50 | Neogloboquadrina pachyderma and Globigerina bulloides | 3.5 | this study | |
| 1.440 | 11.00 | end of 14C plateau | this study | |||||||
| 1.540 | 1.53 | 1.55 | 11.20 | 0.06 | 10.48 | 12.12 | Neogloboquadrina pachyderma | 5.6 | this study | |
| 1.810 | 1.80 | 1.82 | 11.31 | 0.14 | 10.59 | 12.26 | Neogloboquadrina pachyderma | 6.1 | this study | |
| 1.860 | 1.86 | 0.00 | 12.10 | beginning of 14C plateau | this study | |||||
| 1.975 | 1.95 | 2.00 | 14.63 | 0.39 | 12.25 | 14.34 | 14.63 | mixed benthic species | Gardner et al. (1997) | |
| 1.975 | 1.95 | 2.00 | 13.43 | 0.19 | 12.71 | 14.91 | 14.63 | mixed planktonic species | Gardner et al. (1997) | |
| 2.225 | 2.20 | 2.25 | 15.86 | 0.50 | 13.48 | 15.87 | 15.77 | mixed benthic species | Gardner et al. (1997) | |
| 2.225 | 2.20 | 2.25 | 14.04 | 0.28 | 13.32 | 15.67 | 15.77 | mixed planktonic species | Gardner et al. (1997) | |
| 2.725 | 2.70 | 2.75 | 15.27 | 0.22 | 14.55 | 17.18 | 17.18 | mixed planktonic species | Lyle et al. (1992) | |
| 3.025 | 3.00 | 3.05 | 18.49 | 0.38 | 16.12 | 19.08 | 19.10 | mixed benthic species | Gardner et al. (1997) | |
| 3.025 | 3.00 | 3.05 | 16.87 | 0.27 | 16.15 | 19.12 | 19.10 | mixed planktonic species | Gardner et al. (1997) | |
| 3.325 | 3.30 | 3.35 | 18.37 | 0.27 | 17.65 | 20.90 | 20.90 | mixed planktonic species | Lyle et al. (1992) | |
| 3.820 | 3.81 | 3.83 | 22.14 | 0.14 | 21.42 | 25.28 | Globigerina bulloides | 10.6 | this study | |
| 3.930 | 24.64 | average of 381-405 cm | this study | |||||||
| 3.925 | 3.90 | 3.95 | 19.82 | 0.61 | 19.10 | 22.61 | mixed planktonic species | Lyle et al. (1992) | ||
| 4.025 | 4.00 | 4.05 | 24.05 | 1.53 | 21.67 | 25.57 | mixed benthic species | Gardner et al. (1997) | ||
| 4.025 | 4.00 | 4.05 | 21.96 | 0.49 | 21.24 | 25.08 | mixed planktonic species | Gardner et al. (1997) | ||
| 4.430 | 4.42 | 4.44 | 24.78 | 0.14 | 24.06 | 28.25 | 28.25 | Globigerina bulloides | 9.8 | this study |
| 4.970 | 4.96 | 4.98 | 28.14 | 0.40 | 27.42 | 31.91 | 31.91 | Globigerina bulloides | 12.1 | this study |
| 5.570 | 5.56 | 5.58 | 31.97 | 0.32 | 31.25 | 35.92 | 35.92 | Globigerina bulloides | 11.7 | this study |
| 5.700 | 37.40 | correlate to 452 cm in V23-81 | Bond et al. (1993) | |||||||
| 6.080 | 40.00 | correlate to 492 cm in V23-8I | Bond et al. (1993) | |||||||
| 6.580 | 46.50 | correlate to 549 cm in V23-81 | Bond et al. (1993) | |||||||
| 7.100 | 53.00 | correlate to 616 cm in V23-81 | Bond et al. (1993) | |||||||
| 7.350 | 57.00 | correlate to 663 cm in V23-81 | Bond et al. (1993) | |||||||
| 7.600 | 59.00 | d18O stage 3/4 boundary | Imbrie et al. (1984) |