Publication Date:
2024-04-26
Description:
The geochronology was established on the basis of Accelerator Mass Spectrometry (AMS) radiocarbon dates using a Mini Carbon Dating System (MICADAS) implemented at Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI). Further preparation for AMS radiocarbon dating bulk samples were carried out by the Laboratory of Radiocarbon dating and electron microscopy of the Institute of Geography of the Russian Academy of Sciences. Their radiocarbon ages were measured by accelerated mass spectrometry (AMS) at the Center for Applied Isotope Studies of the University of Georgia (USA) using the 1.5SDH Pelletron AMS. Sediments were freeze-dried manually homogenized, and split into sub-samples for further analyses: grain-size distribution, mass-specific magnetic susceptibility, total elemental carbon (TC) and nitrogen contents (TN), total organic carbon content (TOC), the δ¹³C of TOC. The total inorganic carbon (TIC) content was calculated by subtracting TOC from TC. For TOC and δ¹³C analyses, samples were decalcified for 3 h at 95°C by adding 1.3 N HCl.
Keywords:
Accelerator mass spectrometry (AMS), radiocarbon ages; Age, 14C calibrated, IntCal20 (Reimer et al. 2020); Age, comment; Age, dated; Age, dated material; Age, dated standard deviation; Atomic absorption spectrophotometry (RA-915+ with PYRO-915), Zeeman; Barentsburg; Bbg_1; Bbg_10; Bbg_11; Bbg_13; Bbg_14; Bbg_15; Bbg_16; Bbg_17; Bbg_18; Bbg_19; Bbg_2; Bbg_20; Bbg_3; Bbg_4; Bbg_5; Bbg_6; Bbg_7; Bbg_8; Bbg_9; Calculated; Calculated, TC minus TOC; Calendar age; Calendar age, maximum/old; Calendar age, minimum/young; Carbon, inorganic, total; Carbon, organic, total; Carbon, organic, total/Nitrogen, total ratio; Carbon, total; Carbon and nitrogen and sulfur (CNS) element analyzer, Elementar, Vario MAX; Carbon and nitrogen and sulfur (CNS) isotope element analyzer, Elementar, Vario EL III; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; ELEVATION; Event label; Grain size, mean; Gravel; Grondalen_10; Grondalen_11; Grondalen_13; Grondalen_9; ground ice; Grøndalen Valley, Svalbard; Grønfjord, Svalbard; Iradalen Valley, Svalbard; Isfjord, Svalbard; Laboratory code/label; Latitude of event; Longitude of event; Magnetic susceptibility, mass; Magnetic susceptibility meter, Bartington, MS2; coupled with Dual Frequency Sensor, Bartington, MS2B; Mass spectrometer, Finnigan, DELTA S; coupled with elemental analyzer, Thermo Scientific, Flash 2000; coupled with universal continuous flow interface, Thermo Scientific, ConFlo IV; Mercury; Nitrogen, total; Nordenskiöld Land, Svalbard; OUTCROP; outcrop_GD1; Outcrop sample; Permafrost; Portable drill, Drilling Technology Plant, UKB-12/25; radiocarbon ages; Sample code/label; Sand; sediment analysis; Silt; Size fraction 〈 0.002 mm, clay; Size fraction 〉 2 mm, gravel; Size fraction 0.063-0.002 mm, silt, mud; Size fraction 2.000-0.063 mm, sand; Spitsbergen; Vibratory sieve shaker, Fritsch, ANALYSETTE 3; Laser diffraction particle size analyser, Malvern, Mastersizer 3000; water extracts; δ13C, organic carbon
Type:
Dataset
Format:
text/tab-separated-values, 5025 data points
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