NorthGRIP ice-core record of major ions measured using ion chromatography covering the last two millennia and additional short Holocene sections ...

• Main Authors: Siggaard-Andersen, Marie-Louise, Hansson, Margareta E, Steffensen, Jørgen Peder, Jonsell, Ulf, Rasmussen, Sune Olander
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Ice core; impurities; Ion concentrations; NGRIP; NorthGRIP ice core; Depth, top/min; Depth, bottom/max; Lithium; Sodium; Ammonium; Potassium; Magnesium; Calcium; Fluoride; Methanesulfonic acid; Chloride; Nitrate; Sulfate; Laboratory; Comment; Ice drill; Chromatography; North Greenland Ice Core Project NGRIP; Greenland; Greenland ice core; Greenland Ice core Project; ice core; North Greenland; North Greenland Ice Core Project
• Online Access: https://dx.doi.org/10.1594/pangaea.944172; https://doi.pangaea.de/10.1594/PANGAEA.944172

Ion concentration data was obtained from the NGRIP1 ice core drilled in 1996 and 1997. NGRIP1 camp position 75.1N, 42.32W. All samples were cut and decontaminated using a microtome knife in a laminar-flow bench at the field site. In 1996, the 9.850 – 349.250 meter depth interval was cut continuously in 5 cm resolution. In 1997, selected sections from the Holocene, mainly containing volcanic signals, were cut in 5 cm or 2.5 cm depth resolution. Samples covering the 8.2 ka BP cold event were cut from the depth interval 1221-1237.5 m. The frozen samples were thawed in the laboratory and immediately after poured into sample vials for ion chromatography analyses. Bags 212-403 were measured in Department of Physical Geography, Stockholm University, Sweden. The rest of the samples were measured at the Geophysics Department, Niels Bohr Institute, University of Copenhagen, Denmark, on a Dionex 500 IC. The data are labeled "Sto" and "Cph" for samples analysed respectively in Stockholm and Copenhagen. Data measured in ...