Bond, Gerard C; Broecker, Wallace S; Johnsen, Sigfús Jóhann; McManus, James; Labeyrie, Laurent D; Jouzel, Jean; Bonani, Georges (1993): (Table 1) Age determination of DSDP Hole 94-607 and sediment cores V30-101 and V23-81 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.769892, Supplement to: Bond, GC et al. (1993): Correlations between climate records from North Atlantic sediments and Greenland ice. Nature, 365(6442), 143-147, https://doi.org/10.1038/365143a0
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Oxygen isotope measurements in Greenland ice demonstrate that a series of rapid warm-cold oscillations -called Dansgaard-Oeschger events- punctuated the last glaciation (Dansgard et al., 1993, doi:10.1038/364218a0). Here we present records of sea surface temperature from North Atlantic sediments spanning the past 90 kyr which contain a series of rapid temperature oscillations closely matching those in the ice-core record, confirming predictions that the ocean must bear the imprint of the Dansgaard–Oeschger events (Broecker et al., 1988, doi:10.1016/0033-5894(88)90082-8; 1990, doi:10.1029/PA005i004p00469). Moreover, we show that between 20 and 80 kyr ago, the shifts in ocean-atmosphere temperature are bundled into cooling cycles, lasting on average 10 to 15 kyr, with asymmetrical saw-tooth shapes. Each cycle culminated in an enormous discharge of icebergs into the North Atlantic (a 'Hein-rich event' (Bond et al., 1992, doi:10.1038/360245a0; Broecker et al., 1992, doi:10.1007/BF00193540), followed by an abrupt shift to a warmer climate. These cycles document a previously unrecognized link between ice sheet behaviour and ocean-atmosphere temperature changes. An important question that remains to be resolved is whether the cycles are driven by external factors, such as orbital forcing, or by inter-nal ice-sheet dynamics.
Related to:
Broecker, Wallace S; Andree, Michael; Wolfli, Willy; Oeschger, Hans; Bonani, Georges; Kennett, James P; Peteet, Dorothy M (1988): The chronology of the last deglaciation: implications to the cause of the Younger Dryas event. Paleoceanography, 3(1), 1-19, https://doi.org/10.1029/PA003i001p00001
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 49.414933 * Median Longitude: -24.522733 * South-bound Latitude: 44.117000 * West-bound Longitude: -32.500000 * North-bound Latitude: 54.250000 * East-bound Longitude: -16.830000
Date/Time Start: 1966-10-18T00:00:00 * Date/Time End: 1983-07-22T00:00:00
Minimum DEPTH, sediment/rock: 0.565 m * Maximum DEPTH, sediment/rock: 3.930 m
Event(s):
94-609 * Latitude: 49.877800 * Longitude: -24.238200 * Date/Time: 1983-07-22T00:00:00 * Elevation: -3884.0 m * Penetration: 399.4 m * Recovery: 301.4 m * Location: North Atlantic/FLANK * Campaign: Leg94 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 40 cores; 380.2 m cored; 19.2 m drilled; 79.3 % recovery
Comment:
In30-101 Heinrich layer 4 at 0.8 m. V30-101 and V23-81 (2.1-3.93 m) AMS14C ages from analyses done at ETH-zürich for this work. V23-81 (1.545 - 1.985 m) from Broecker et al., 1988.
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | Event label | Event | ||||
2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
3 | Depth, top/min | Depth top | m | Bond, Gerard C | ||
4 | Depth, bottom/max | Depth bot | m | Bond, Gerard C | ||
5 | Age, dated | Age dated | ka | Bond, Gerard C | Age, 14C calibrated | corrected for assumed 400-yr difference between surface-water carbon and atmospheric carbon |
6 | Age, dated standard deviation | Age dated std dev | ± | Bond, Gerard C | Age, 14C calibrated | |
7 | Age, dated material | Dated material | Bond, Gerard C |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
163 data points
Data
1 Event | 2 Depth sed [m] | 3 Depth top [m] | 4 Depth bot [m] | 5 Age dated [ka] | 6 Age dated std dev [±] | 7 Dated material |
---|---|---|---|---|---|---|
94-609 | 0.740 | 0.73 | 0.75 | 12.35 | 0.22 | Neogloboquadrina pachyderma |
94-609 | 0.800 | 0.79 | 0.81 | 13.25 | 0.09 | Globigerina bulloides |
94-609 | 0.845 | 0.84 | 0.85 | 14.59 | 0.23 | Neogloboquadrina pachyderma |
94-609 | 0.875 | 0.87 | 0.88 | 15.96 | 0.24 | Neogloboquadrina pachyderma |
94-609 | 0.905 | 0.90 | 0.91 | 16.36 | 0.15 | Neogloboquadrina pachyderma |
94-609 | 0.985 | 0.98 | 0.99 | 16.96 | 0.12 | Neogloboquadrina pachyderma |
94-609 | 1.060 | 1.05 | 1.07 | 18.94 | 0.22 | Neogloboquadrina pachyderma |
94-609 | 1.105 | 1.10 | 1.11 | 19.97 | 0.33 | Neogloboquadrina pachyderma |
94-609 | 1.115 | 1.11 | 1.12 | 20.55 | 0.26 | Neogloboquadrina pachyderma |
94-609 | 1.125 | 1.12 | 1.13 | 21.11 | 0.22 | Neogloboquadrina pachyderma |
94-609 | 1.155 | 1.15 | 1.16 | 21.37 | 0.22 | Neogloboquadrina pachyderma |
94-609 | 1.190 | 1.18 | 1.20 | 22.38 | 0.34 | Neogloboquadrina pachyderma |
94-609 | 1.400 | 1.39 | 1.41 | 25.26 | 0.44 | Globorotalia inflata |
94-609 | 1.480 | 1.47 | 1.49 | 26.17 | 0.31 | Neogloboquadrina pachyderma |
94-609 | 1.540 | 1.53 | 1.55 | 29.17 | 0.66 | Neogloboquadrina pachyderma |
94-609 | 1.665 | 1.66 | 1.67 | 30.08 | 0.68 | Neogloboquadrina pachyderma |
94-609 | 1.750 | 1.74 | 1.76 | 30.72 | 0.73 | Globorotalia inflata |
V30-101 | 0.565 | 0.56 | 0.57 | 23.57 | 0.21 | Neogloboquadrina pachyderma |
V30-101 | 0.700 | 33.25 | 0.51 | Neogloboquadrina pachyderma | ||
V30-101 | 0.850 | 36.57 | 0.65 | Neogloboquadrina pachyderma | ||
V23-81 | 1.545 | 1.54 | 1.55 | 10.90 | 0.14 | Neogloboquadrina pachyderma |
V23-81 | 1.985 | 1.98 | 1.99 | 12.32 | 0.22 | Neogloboquadrina pachyderma |
V23-81 | 2.100 | 13.44 | 0.12 | Neogloboquadrina pachyderma | ||
V23-81 | 2.130 | 13.60 | 0.12 | Neogloboquadrina pachyderma | ||
V23-81 | 2.170 | 13.61 | 0.10 | Neogloboquadrina pachyderma | ||
V23-81 | 2.190 | 13.63 | 0.10 | Neogloboquadrina pachyderma | ||
V23-81 | 2.210 | 14.15 | 0.11 | Neogloboquadrina pachyderma | ||
V23-81 | 2.230 | 14.33 | 0.10 | Neogloboquadrina pachyderma | ||
V23-81 | 2.270 | 14.77 | 0.11 | Neogloboquadrina pachyderma | ||
V23-81 | 2.290 | 15.04 | 0.11 | Neogloboquadrina pachyderma | ||
V23-81 | 3.210 | 20.42 | 0.18 | Neogloboquadrina pachyderma | ||
V23-81 | 3.230 | 20.47 | 0.16 | Neogloboquadrina pachyderma | ||
V23-81 | 3.270 | 20.57 | 0.18 | Neogloboquadrina pachyderma | ||
V23-81 | 3.290 | 20.99 | 0.17 | Neogloboquadrina pachyderma | ||
V23-81 | 3.310 | 21.21 | 0.17 | Neogloboquadrina pachyderma | ||
V23-81 | 3.330 | 21.70 | 0.18 | Neogloboquadrina pachyderma | ||
V23-81 | 3.370 | 21.96 | 0.19 | Neogloboquadrina pachyderma | ||
V23-81 | 3.710 | 24.68 | 0.20 | Neogloboquadrina pachyderma | ||
V23-81 | 3.810 | 26.27 | 0.26 | Neogloboquadrina pachyderma | ||
V23-81 | 3.910 | 28.98 | 0.32 | Neogloboquadrina pachyderma | ||
V23-81 | 3.930 | 29.05 | 0.31 | Neogloboquadrina pachyderma |