Radiocarbon dates of sediment cores obtained during Bio Hespérides cruise SVAIS and OGS Explora cruise EGLACOM between 2007-2008

Tipo Dataset Classe Dati di campioni fisici (campioni e parametri fisici di rocce, minerali e materiali vari)

Event label Latitude of event Longitude of event Elevation of event DATE/TIME Date/time end Sample ID DEPTH, sediment/rock Age, dated material Description Method comment Age, dated Age, dated standard deviation δ13C Age, minimum/young Age, maximum/old Calendar age Gravity corer Piston corer Age, 14C AMS Age, 14C calibrated, CALIB 6.0 (Reimer et al., 2009) EGLACOM 29HE20070802 OGS-Explora Hespérides International Polar Year (2007-2008) (IPY)


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.

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Sagnotti L., Macrì P., Lucchi R. G., Rebesco M., Camerlenghi A. (2011). (Table 2) Radiocarbon dates of sediment cores obtained during Bio Hespérides cruise SVAIS and OGS Explora cruise EGLACOM between 2007-2008, supplement to: Sagnotti, Leonardo; Macrì, Patrizia; Lucchi, Renata G; Rebesco, Michele; Camerlenghi, Angelo (2011): A Holocene paleosecular variation record from the northwestern Barents Sea continental margin. Geochemistry, Geophysics, Geosystems, 12(11), 1-24 [Data set]. PANGAEA - Data Publisher for Earth & Environmental Science. https://doi.org/10.1594/pangaea.819543

Nome campo Valore
Identificativo del dataset (DOI) 10.1594/pangaea.819543
Altro identificativo Codice: ingv_563
Gestore del codice: INGV
Temi del dataset Scienza e tecnologia
Editore del Dataset PANGAEA - Data Publisher for Earth & Environmental Science
Data di rilascio 01-01-2011
Data di modifica 07-10-2021
Copertura Geografica Area di competenza dell'unità organizzativa preposta
URI di GeoNames Non disponibile
Lingue del dataset italiano
Estensione temporale Non disponibile
Titolari Istituto Nazionale di Geofisica e Vulcanologia (INGV)
ROR 00qps9a02
IPA ingv
Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS)
ROR 04y4t7k95
IPA INOGS
University of Barcelona (UB)
ROR 021018s57
Frequenza di aggiornamento mai
Versione di Non disponibile
Spatial extent {"type": "MultiPolygon","coordinates": [[[ [12.9726,76.1034], [17.7255,76.1034], [17.7255,74.957], [12.9726,74.957], [12.9726,76.1034] ]]]}
Autori SAGNOTTI Leonardo
Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy
MACRì Patrizia
Istituto Nazionale di Geofisica e Vulcanologia (INGV), Italy
LUCCHI Renata G
Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Italy
REBESCO Michele
Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Italy
CAMERLENGHI Angelo
University of Barcelona (UB), Spain