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Sagnotti, Leonardo; Macrì, Patrizia; Lucchi, Renata G; Rebesco, Michele; Camerlenghi, Angelo (2011): (Table 2) Radiocarbon dates of sediment cores obtained during Bio Hespérides cruise SVAIS and OGS Explora cruise EGLACOM between 2007-2008 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.819543, Supplement to: Sagnotti, L et al. (2011): A Holocene paleosecular variation record from the northwestern Barents Sea continental margin. Geochemistry, Geophysics, Geosystems, 12(11), 1-24, https://doi.org/10.1029/2011GC003810

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Abstract:
A high-resolution paleomagnetic and rock magnetic study has been carried out on sediment cores collected in glaciomarine silty-clay sequences from the continental shelf and slope of the southern Storfjorden trough-mouth fan, on the northwestern Barents Sea continental margin. The Storfjorden sedimentary system was investigated during the SVAIS and EGLACOM cruises, when 10 gravity cores, with a variable length from 1.03 m to 6.41 m, were retrieved. Accelerator mass spectrometry (AMS) 14C analyses on 24 samples indicate that the cores span a time interval that includes the Holocene, the last deglaciation phase and in some cores the last glacial maximum. The sediments carry a well-defined characteristic remanent magnetization and have a valuable potential to reconstruct the paleosecular variation (PSV) of the geomagnetic field, including relative paleointensity (RPI) variations. The paleomagnetic data allow reconstruction of past dynamics and amplitude of the geomagnetic field variations at high northern latitudes (75°-76° N). At the same time, the rock magnetic and paleomagnetic data allow a high-resolution correlation of the sedimentary sequences and a refinement of their preliminary age models. The Holocene PSV and RPI records appear particularly sound, since they are consistent between cores and they can be correlated to the closest regional stacking curves (UK PSV, FENNOSTACK and FENNORPIS) and global geomagnetic model for the last 7 ka (CALS7k.2). The computed amplitude of secular variation is lower than that outlined by some geomagnetic field models, suggesting that it has been almost independent from latitude during the Holocene.
Project(s):
International Polar Year (2007-2008) (IPY)
Coverage:
Median Latitude: 75.642688 * Median Longitude: 14.260126 * South-bound Latitude: 74.957000 * West-bound Longitude: 12.972560 * North-bound Latitude: 76.103360 * East-bound Longitude: 17.725530
Date/Time Start: 2007-07-29T00:00:00 * Date/Time End: 2008-07-08T00:00:00
Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 3.040 m
Event(s):
EG-01  * Latitude: 76.103360 * Longitude: 13.627080 * Date/Time Start: 2008-07-08T00:00:00 * Date/Time End: 2008-08-04T00:00:00 * Elevation: -1069.0 m * Recovery: 2.205 m * Location: North Greenland Sea * Campaign: EGLACOM * Basis: OGS-Explora * Method/Device: Gravity corer (GC)
EG-02  * Latitude: 75.215120 * Longitude: 13.076460 * Date/Time Start: 2008-07-08T00:00:00 * Date/Time End: 2008-08-04T00:00:00 * Elevation: -1722.0 m * Recovery: 3.055 m * Location: Norwegian Sea * Campaign: EGLACOM * Basis: OGS-Explora * Method/Device: Gravity corer (GC)
EG-03  * Latitude: 75.843590 * Longitude: 12.972560 * Date/Time Start: 2008-07-08T00:00:00 * Date/Time End: 2008-08-04T00:00:00 * Elevation: -1432.0 m * Recovery: 2.915 m * Location: Norwegian Sea * Campaign: EGLACOM * Basis: OGS-Explora * Method/Device: Gravity corer (GC)
Comment:
Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEvent
2 Latitude of eventLatitude
3 Longitude of eventLongitude
4 Elevation of eventElevationm
5 DATE/TIMEDate/TimeGeocode
6 Date/time endDate/time endSagnotti, Leonardo
7 Sample IDSample IDSagnotti, Leonardo
8 DEPTH, sediment/rockDepth sedmGeocode
9 Age, dated materialDated materialSagnotti, Leonardo
10 DescriptionDescriptionSagnotti, Leonardo
11 Method commentMethod commSagnotti, LeonardoOC: organic carbon; HY: hydrolysis
12 Age, datedAge datedkaSagnotti, LeonardoAge, 14C AMS
13 Age, dated standard deviationAge dated std dev±Sagnotti, LeonardoAge, 14C AMS
14 δ13Cδ13C‰ PDBSagnotti, Leonardo
15 Age, minimum/youngAge minkaSagnotti, LeonardoAge, 14C calibrated, CALIB 6.0 (Reimer et al., 2009)1 sigma, ka BP
16 Age, maximum/oldAge maxkaSagnotti, LeonardoAge, 14C calibrated, CALIB 6.0 (Reimer et al., 2009)1 sigma, ka BP
17 Calendar ageCal ageka BPSagnotti, LeonardoAge, 14C calibrated, CALIB 6.0 (Reimer et al., 2009)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
264 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Event		2 
Latitude		3 
Longitude		4 
Elevation [m]		5 
Date/Time		6 
Date/time end		7 
Sample ID		8 
Depth sed [m]		9 
Dated material		10 
Description		11 
Method comm		12 
Age dated [ka]		13 
Age dated std dev [±]		14 
δ13C [‰ PDB]		15 
Age min [ka]		16 
Age max [ka]		17 
Cal age [ka BP]
EG-01 76.103413.6271-10692008-07-082008-08-04OS-784090.030Sedimentpowdered sedimentOC4.830.035-22.384.8905.0464.968
EG-0176.103413.6271-10692008-07-082008-08-04OS-784521.020Sedimentpowdered sedimentOC28.900.190-24.4732.42833.15632.792
EG-0176.103413.6271-10692008-07-082008-08-04OS-784531.920Sedimentpowdered sedimentOC36.700.310-24.7641.08441.63041.357
EG-02 75.215113.0765-17222008-07-082008-08-04OS-783870.300ForaminiferaBenthic + planktonicHY4.570.130-25.004.5014.8294.665
EG-0275.215113.0765-17222008-07-082008-08-04OS-783890.900Foraminiferabenthic + planktonicHY9.460.1800.0010.00110.46910.235
EG-0275.215113.0765-17222008-07-082008-08-04OS-783831.820Forams and Pteropodsbenthic + plankt. + pterop.HY12.100.1801.4113.30013.66213.481
EG-03 75.843612.9726-14322008-07-082008-08-04OS-783850.905Foraminiferabenthic + planktonicHY4.910.120-25.004.9575.2795.118
EG-0375.843612.9726-14322008-07-082008-08-04OS-783821.600Foraminiferabenthic + planktonicHY8.590.1300.018.9809.3149.147
EG-0375.843612.9726-14322008-07-082008-08-04OS-783242.305Foraminiferabenthic + planktonicHY9.740.0800.7310.42110.59510.508
SV-04 74.957013.8990-18392007-07-292007-08-17OS-776820.000ForaminiferaNeogloboquadrina pachiderma sxHY1.100.0250.440.5580.6300.594
SV-0474.957013.8990-18392007-07-292007-08-17OS-776830.250ForaminiferaNeogloboquadrina pachiderma sxHY4.000.0300.833.8403.9523.896
SV-0474.957013.8990-18392007-07-292007-08-17OS-826850.620Foraminiferamixed planktonicHY7.110.0300.507.4817.5577.519
SV-0474.957013.8990-18392007-07-292007-08-17OS-776840.730ForaminiferaNeogloboquadrina pachiderma sxHY7.880.0450.508.2058.3238.264
SV-0474.957013.8990-18392007-07-292007-08-17OS-776850.790ForaminiferaNeogloboquadrina pachiderma sxHY8.180.0350.338.5008.6168.558
SV-0474.957013.8990-18392007-07-292007-08-17OS-826860.990Foraminiferamixed planktonicHY8.690.030-0.449.2229.3629.292
SV-0474.957013.8990-18392007-07-292007-08-17OS-826871.340Foraminiferabenthic + planktonicHY9.790.0300.6410.52510.59110.557
SV-0474.957013.8990-18392007-07-292007-08-17OS-826881.870Foraminiferamixed planktonicHY12.050.0400.0913.32813.45013.388
SV-0474.957013.8990-18392007-07-292007-08-17OS-776863.040ForaminiferaNeogloboquadrina pachiderma sxHY21.800.100-0.0725.19725.67925.438
SV-06 76.094417.7255-3032007-07-292007-08-17OS-777340.000Foraminiferabenthic + planktonicHY0.620.030-1.220.1250.2460.186
SV-0676.094417.7255-3032007-07-292007-08-17OS-777360.600Foraminiferabenthic + planktonicHY2.070.025-1.111.5001.5981.549
SV-0676.094417.7255-3032007-07-292007-08-17OS-777370.830Foraminiferabenthic + planktonicHY2.390.030-1.201.8691.9701.920
SV-0676.094417.7255-3032007-07-292007-08-17OS-777381.230Foraminiferabenthic + planktonicHY6.770.045-0.227.1617.2647.213
SV-0676.094417.7255-3032007-07-292007-08-17OS-777391.240Molluscbivalve fragmentHY7.800.050-0.428.1298.2768.202
SV-0676.094417.7255-3032007-07-292007-08-17OS-777401.360Molluscbivalve fragmentHY8.990.0601.579.4929.6379.565