Hagen, Sveinung; Hald, Morten (2002): (Table 1) Age determination of sediment profile JM96-1225 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.842445, Supplement to: Hagen, S; Hald, M (2002): Variation in surface and deep water circulation in the Denmark Strait, North Atlantic, during marine isotope stages 3 and 2. Paleoceanography, 17(4), 13-1-13-16, https://doi.org/10.1029/2001PA000632
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Abstract:
The paleoceanography in the Denmark Strait, North Atlantic, is reconstructed based on down core analysis of planktonic foraminifera, carbon and oxygen isotopes, carbonate, and ice rafted debris (IRD). The stratigraphy spans 57 to 6 calibrated (cal) ka years and reveals sea surface temperatures that covary with Greenland ice core temperatures throughout marine isotope stages (MIS) 3 and 2. Planktonic d18O minima, interpreted as meltwater events, follow sea surface warming. IRD from both the Greenland and Iceland Ice Sheets was delayed by ~2 ka relative to the North Atlantic Heinrich events. Ventilation of bottom water was mostly sustained through open ocean convection associated with North Atlantic Deep Water production or by convection of glacial North Atlantic Intermediate Water, except for two episodes at ~54 cal ka (MIS 3.31) and 18–15 cal ka (termination I). During these two periods we suggest that deep water ventilation was accomplished mainly by brine formation.
Coverage:
Latitude: 64.910000 * Longitude: -29.290000
Date/Time Start: 1996-09-30T00:00:00 * Date/Time End: 1996-09-30T00:00:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 3.540 m
Event(s):
JM96-1225/1-GC * Latitude: 64.910000 * Longitude: -29.290000 * Date/Time: 1996-09-30T00:00:00 * Elevation: -1683.0 m * Recovery: 2.15 m * Campaign: JM96 * Basis: Jan Mayen * Method/Device: Gravity corer (GC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Laboratory code/label | Lab label | Hagen, Sveinung | |||
| 2 | Core | Core | Hagen, Sveinung | |||
| 3 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 4 | Depth, top/min | Depth top | m | Hagen, Sveinung | ||
| 5 | Depth, bottom/max | Depth bot | m | Hagen, Sveinung | ||
| 6 | Age, dated material | Dated material | Hagen, Sveinung | |||
| 7 | Age, dated | Age dated | ka | Hagen, Sveinung | Age, 14C AMS | |
| 8 | Age, dated standard error | Age std e | ± | Hagen, Sveinung | Age, 14C AMS | |
| 9 | Age, dated | Age dated | ka | Hagen, Sveinung | Age, 14C milieu/reservoir corrected (-400 yr) | |
| 10 | Calendar age | Cal age | ka BP | Hagen, Sveinung | Age, 14C calibrated |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
115 data points
Data
| 1 Lab label | 2 Core | 3 Depth sed [m] | 4 Depth top [m] | 5 Depth bot [m] | 6 Dated material | 7 Age dated [ka] (Age, 14C AMS) | 8 Age std e [±] (Age, 14C AMS) | 9 Age dated [ka] (Age, 14C milieu/reservoir cor...) | 10 Cal age [ka BP] (Age, 14C calibrated) |
|---|---|---|---|---|---|---|---|---|---|
| KIA 4785 | JM96-1225/1 | 0.005 | 0.00 | 0.01 | Neogloboquadrina pachyderma sin | 2.780 | 0.040 | 2.380 | |
| JM96-1225/1 | 0.235 | 0.23 | 0.24 | Vedde ash | 10.300 | 11.980 | |||
| KIA 4786 | JM96-1225/1 | 0.310 | 0.30 | 0.32 | Neogloboquadrina pachyderma sin | 12.220 | 0.100 | 11.820 | 13.300 |
| Tua-2122 | JM96-1225/1 | 0.475 | 0.47 | 0.48 | Neogloboquadrina pachyderma sin | 12.455 | 0.065 | 12.055 | 13.480 |
| AA-29214 | JM96-1225/1 | 0.570 | 0.56 | 0.58 | Neogloboquadrina pachyderma sin | 15.380 | 0.130 | 14.980 | 17.700 |
| Tua-2123 | JM96-1225/1 | 1.395 | 1.39 | 1.40 | Neogloboquadrina pachyderma sin | 22.070 | 0.160 | 21.670 | 25.570 |
| Tua-2124 | JM96-1225/1 | 1.795 | 1.79 | 1.80 | Neogloboquadrina pachyderma sin | 25.645 | 0.145 | 25.245 | |
| Tua-1715 | JM96-1225/1 | 1.975 | 1.97 | 1.98 | Neogloboquadrina pachyderma sin | 33.100 | 0.575 | 32.700 | |
| Tua-1712 | JM96-1225/2 | 0.910 | 0.90 | 0.92 | Neogloboquadrina pachyderma sin | 18.365 | 0.120 | 17.965 | 21.276 |
| AA-29215 | JM96-1225/2 | 1.610 | 1.60 | 1.62 | Neogloboquadrina pachyderma sin | 25.530 | 0.250 | 25.130 | 29.430 |
| AA-29216 | JM96-1225/2 | 2.310 | 2.30 | 2.32 | Neogloboquadrina pachyderma sin | 31.430 | 0.530 | 31.030 | 35.690 |
| AA-29217 | JM96-1225/2 | 3.210 | 3.20 | 3.22 | Neogloboquadrina pachyderma sin | 40.200 | 2.600 | 39.800 | |
| JM96-1225/2 | 3.370 | 3.36 | 3.38 | ash II | 55.000 | 52.000 | |||
| Tua-1711 | JM96-1225/2 | 3.540 | 3.53 | 3.55 | Neogloboquadrina pachyderma sin | 49.665 | 5.775 | 49.265 |