Zhu, Fangjingcheng; Carter-Champion, Alice; Wharton, Jack; Bracamontes Ramirez, Joel; Burke, Andrea; deMenocal, Peter B; Fairman, David; Keigwin, Lloyd D; Marchitto, Thomas M; Papachristopoulou, Eirini; Rae, James W B; Rosenthal, Yair; Zhao, Ning; Thornalley, David J R: Age determination of sediment cores KNR197-10-44GGC, KNR158-4-09GGC and HU87003-7PC [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995151 (dataset in review), In: Zhu, F et al.: High-resolution, multi-proxy paleoceanographic reconstructions from Northwest Atlantic Ocean during the last deglaciation [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995150 (dataset in review)
Abstract:
This dataset comprises age determination for KNR197-10-44GGC, KNR158-4-09GGC and HU87003-7PC. The Tuned age model for this study was based on a tephra tie point and the correlation between 44GGC coarse fraction (%)/ice rafted detritus counts and the North Greenland Ice Core Project (NGRIP) Ca2+ with additional age constraints from 14C accelerator mass spectrometry (AMS) dates on planktonic foraminifera from early Holocene. The Tuned age model was then transferred to KNR158-4-09GGC by correlating % Neogloboquadrina pachyderma while keeping the tephra tie point, and to HU87003-7PC by correlating Neogloboquadrina pachyderma d18O. Also included in the dataset is the reservoir ages estimated by combining the 14C dates with the Tuned ages from each of the three cores.
Keyword(s):
References:
Rasmussen, Sune Olander; Andersen, Katrine K; Svensson, Anders M; Steffensen, Jørgen Peder; Vinther, Bo Møllesøe; Clausen, Henrik Brink; Siggaard-Andersen, Marie-Louise; Johnsen, Sigfús Jóhann; Larsen, L B; Dahl-Jensen, Dorthe; Bigler, Matthias; Röthlisberger, Regine; Fischer, Hubertus; Goto-Azuma, Kumiko; Hansson, Margareta E; Ruth, Urs (2006): A new Greenland ice core chronology for the last glacial termination. Journal of Geophysical Research: Atmospheres, 111, D06102, https://doi.org/10.1029/2005JD006079
Funding:
Horizon 2020 (H2020), grant/award no. 678760: A Trans-Atlantic assessment and deep-water ecosystem-based spatial management plan for Europe
Horizon 2020 (H2020), grant/award no. 818123: Integrated Assessment of Atlantic Marine Ecosystems in Space and Time
Horizon Europe (HorizonEU), grant/award no. 101059547: Updating ocean models to predict rapid climate change (EPOC)
Natural Environment Research Council (NERC), grant/award no. NE/S009736/1: Beyond the instrumental record: Reconstructing Atlantic overturning over the past 7000 yrs (ReconAMOC)
Coverage:
Median Latitude: 43.841667 * Median Longitude: -58.441667 * South-bound Latitude: 43.345000 * West-bound Longitude: -60.215000 * North-bound Latitude: 44.830000 * East-bound Longitude: -54.900000
Date/Time Start: 1998-06-01T00:00:00 * Date/Time End: 2010-07-01T00:00:00
Minimum DEPTH, sediment/rock: 1.3975 m * Maximum DEPTH, sediment/rock: 5.5125 m
Event(s):
HU87003-7PC * Latitude: 43.345000 * Longitude: -60.215000 * Elevation: -920.0 m * Location: Scotian Shelf, Northwest Atlantic * Campaign: HU87003 * Basis: Hudson * Method/Device: Piston corer (PC)
KNR158-4-09GGC * Latitude: 44.830000 * Longitude: -54.900000 * Date/Time: 1998-06-01T00:00:00 * Elevation: -1854.0 m * Location: Laurentian Slope, Northwest Atlantic * Campaign: KNR158-4 * Basis: Knorr * Method/Device: Giant gravity corer (GGC)
KNR197-10-44GGC * Latitude: 43.350000 * Longitude: -60.210000 * Date/Time: 2010-07-01T00:00:00 * Elevation: -966.0 m * Location: Scotian Shelf, Northwest Atlantic * Campaign: KNR197-10 * Basis: Knorr * Method/Device: Giant gravity corer (GGC)
Comment:
KNR197-10-44GGC age model (Age [ka b2k]) was constructed by correlating 44GGC % coarse fraction and ice rafted debris with NGRIP Ca2+ (GICC05 timescale; Rasmussen et al., 2006), with additional age constraints from a tephra tie point and 14C dates in the Holocene. The age model (Age [ka b2k]) was then transferred to KNR158-4-09GGC by correlating % Neogloboquadrina pachyderma and to HU87003-7PC by correlating Neogloboquadrina pachyderma d18O.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Zhu, Fangjingcheng | |||
| 2 | Sample ID | Sample ID | Zhu, Fangjingcheng | |||
| 3 | DEPTH, sediment/rock | Depth sed | m | Zhu, Fangjingcheng | Geocode | |
| 4 | Age, dating method | Dating meth | Zhu, Fangjingcheng | |||
| 5 | Age, dated material | Dated material | Zhu, Fangjingcheng | |||
| 6 | Age, dated | Age dated | ka BP | Zhu, Fangjingcheng | Age, 14C AMS | |
| 7 | Age, dated, uncertainty | Age dated unc | ± | Zhu, Fangjingcheng | calculated, 1 sigma | |
| 8 | Age | Age | ka b2k | Zhu, Fangjingcheng | see comment | |
| 9 | Reservoir effect/correction | Res effect | a | Zhu, Fangjingcheng | reservoir age | |
| 10 | Comment | Comment | Zhu, Fangjingcheng |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
238 data points