Catchment geochemical analyses from Disko 1,2 & 4 lake catchments, Disko Island (West Greenland) collected in 2013

• Main Authors: Stevenson, Mark A, McGowan, Suzanne, Pearson, Emma J, Swann, George E A, Leng, Melanie J, Jones, Vivienne J, Bailey, Joseph J, Huang, Xianyu, Whiteford, Erika
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Arctic; Carbon; organic; total; Carbon/Nitrogen ratio; carbon isotope analysis; Classification; D1-R2-1-2013; D2-K1-2013; D4-K2-2013; Date/Time of event; Disko_1_lake_catchment; Disko_2_lake_catchment; Disko_4_lake_catchment; Disko Bay; Greenland; Disko Island; West Greenland; Element analyser CHN (ECS4010; Costech) coupled to a VG Triple Trap and a VG Optima dual-inlet mass spectrometer (MS); Event label; Hand trowel; HONK; HON-Kajak sediment corer; Lake sediment; Latitude of event; Longitude of event; n-Alkanoic acid C16; δ13C; standard deviation; n-Alkanoic acid C18; n-Alkanoic acid C20; n-Alkanoic acid C22; n-Alkanoic acid C24; Arktis*
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.928314; https://doi.org/10.1594/PANGAEA.928314

Plant, soil and algal rock scrape samples were taken in both April and August 2013 on Disko Island, West Greenland using a small trowel, placed into plastic bags, and subsequently transferred into glass vials for freeze drying, with samples powdered using a liquid nitrogen freezer mill and a pestle and mortar. Surface sediments were taken from the uppermost 0.5 cm interval of a HON-Kajak core from lakes Disko 1, 2, & 4. Samples were analysed for carbon isotopes (δ¹³C~org~) and C~org~/N ratios (including provision of TOC and N) using a Costech ECS4010 elemental analyser (EA) coupled to a VG Triple Trap and a VG Optima dual-inlet mass spectrometer (BGS, Keyworth). Analyses were completed as part of Mark A. Stevenson's PhD research while based at the University of Nottingham, UK (Stevenson, 2017, http://eprints.nottingham.ac.uk/46579). Samples are arranged here by broad specimen group for subsequent data exploration. Acknowledgements: Mark Stevenson gratefully acknowledges the receipt of a NERC/ESRC studentship (ES/J500100/1). We acknowledge grants IP-1393-1113 & IP-1516-1114 from the NERC Isotope Geosciences laboratory (NIGL) for the analysis of δ¹³Corg & C/N ratios on sediment, soil and plant samples. We thank Christopher Kendrick for technical support. Financial support for fieldwork was awarded via the INTERACT transnational access scheme (grant agreement No 262693) under the European Community's Seventh Framework Programme and UK RI NERC grant NE/K000276/1. Logistical support is acknowledged from University of Copenhagen Arktisk Station including Ole Stecher, Kjeld Mølgaard and Erik Wille.