Geochemical data for giant piston core MD04-2832 (Loch Sunart, Scotland)

Dataset title	Geochemical data for giant piston core MD04-2832 (Loch Sunart, Scotland)
Dataset creators	Craig Smeaton, University of St. Andrews, UK Xingqian Cui, Shanghai Jiao Tong University, China Thomas Bianchi, University of Florida, USA Alix Cage, Keele University, UK John Howe, Scottish Association for Marine Science, UK William Austin, University of St. Andrews, UK
Dataset theme	Geoscientific Information
Dataset abstract	Geochemical data for the upper 300cm of giant piston core MD04-2832. Core MD04-2832 was collected from the middle basin of Loch Sunart a fjord on the west coast of Scotland from the research vessel Marion Dufresne on the 15th of June 2004. This data resource includes five data sheets: (1) Geochemical data, (2) Bulk radiocarbon, (3) ICP-MS, (4) FRUITS and (5) Age Model. Geochemical data sheet includes Bulk elemental data (Organic Carbon, Nitrogen, C/N ratio, N/C ratio), Isotopic data (δ13C and δ15N), Biomarker data (Alkanes, Fatty Acids, GDGT's) and thermosgravimetric data (% labile, recalcitrant and refractory organic matter). Bulk Radiocarbon data sheet includes bulk radiocarbon data for ten sediment samples presented as % modern, 14C Age (years BP), δ14C and Δ14C. ICP-MS data sheet includes metal data associated with mining activities within the fjords catchment. Data includes Zinc (Zn), Lead (Pb), Copper (Cu), Barium (Ba), Aluminium (Al) and elemental ratios of these metal normalized with Al concentrations. The FRUITS data sheet contains the outputs from the FRUITS Bayesian isotopic mixing model (Fernandes et al., 2014) used to constrain the source (terrestrial vs marine) of the organic carbon found at site MD04-2832. The model used bulk elemental ratios (N/C), Isotopic (δ13C and δ15N) and biomarker data (GDGT - BIT Index) to calculate the terrestrial and marine OC fraction from each downcore sample. The Age Model datasheet contains the age model produced by the BACON software package (Blaauw and Christen, 2011). The age model was developed with a combination of shell/foraminifera radiocarbon dates and radiometric dating (210Pb and 137Cs). Further details on the data can be found in Smeaton, C., Cui, X., Bianchi, T.S., Cage, A.G., Howe J.A., Austin, W.E.N., (2021), The evolution of a coastal carbon store over the last millennium, Quaternary Science Reviews.
Dataset content dates	15/06/2004 to 27/01/2020
Dataset spatial coverage	Loch Sunart, Scotland Geographic coordinates (WGS84) of coring site: MD04-2832: 56.669833, -5.868667 PM06-MC01: 56.670000, -5.871833 PM06-MC01: 56.670000, -5.871667
Dataset supply format	MS Excel
Dataset language	English-United Kingdom
Dataset discovery metadata record	Discovery Link to the dataset's BGS Discovery Metadata record
Dataset publisher	NERC EDS National Geoscience Data Centre
Dataset publication date	30th June 2021
Dataset digital object identifier(DOI)	10.5285/60c437bd-9913-4c36-be71-b7b4b1751e26
Dataset citation text	Smeaton, C., Cui, X., Bianchi, T.S., Cage, A.G., Howe J.A., Austin, W.E.N. (2021): Geochemical data for giant piston core MD04-2832 (Loch Sunart, Scotland). NERC EDS National Geoscience Data Centre. (Dataset). https://doi.org/10.5285/60c437bd-9913-4c36-be71-b7b4b1751e26
Constraints and terms of use	This data set is available under Open Government Licence, subject to the following acknowledgement accompanying any reproduced materials: "Contains data supplied by permission of the Natural Environment Research Council [YEAR]".
Access the dataset	https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item167045
Further information	Further details on the data can be found in Smeaton, C., Cui, X., Bianchi, T.S., Cage, A.G., Howe J.A., Austin, W.E.N., (2021), The evolution of a coastal carbon store over the last millennium, Quaternary Science Reviews.