3d37a409-c1e2-4c25-bdbc-fe495ccff653 eng utf8 dataset dataset NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom polardatacentre@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact 2022-09-14 ISO 19115 Geographic Information - Metadata ISO 19115:2003(E) European Petroleum Survey Group (EPSG) Geodetic Parameter Registry 2008-11-12 publication European Petroleum Survey Group EPSGadministrator@iogp.org https://www.epsg-registry.org/ EPSG Geodetic Parameter Dataset The EPSG Geodetic Parameter Dataset is a structured dataset of Coordinate Reference Systems and Coordinate Transformations, accessible through this online registry. information publisher urn:ogc:def:crs:EPSG::3031 6.18.3 Sedimentological data (grain size data, wet bulk density, foraminifera and magnetic susceptibility) for core LC12 sediment record from Blaso, a large, epishelf lake, NW Greenland in July-Aug 2017 2022-09-14 creation 2022-09-14 revision 2022-09-14 publication 2022-09-14 released 1.0 https://doi.org/10.5285/3d37a409-c1e2-4c25-bdbc-fe495ccff653 doi GB/NERC/BAS/PDC/01665 https://data.bas.ac.uk/ NE/N011228/1 award Please cite this item as: Smith, J., Callard, L., Sánchez Montes, M., McClymont, E., Lloyd, J., Ehrmann, W., Roberts, D., Bentley, M., Jamieson, S., Lane, T., & Darvill, C. (2022). Sedimentological data (grain size data, wet bulk density, foraminifera and magnetic susceptibility) for core LC12 sediment record from Blaso, a large, epishelf lake, NW Greenland in July-Aug 2017 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/3d37a409-c1e2-4c25-bdbc-fe495ccff653 The dataset comprises multi-proxy analyses sediment core, LC12, extracted from Blaso, a large, epishelf lake on the margin of 79 degrees N Ice Shelf, NW Greenland in July-August 2017. The data are used to constrain ice shelf dynamics over the last ~8500 calibrated years before present (cal. years B.P., where present is A.D. 1950). 2 m-long sediment cores were recovered with a UWITEC KOL 'Kolbenlot' percussion piston corer to a total sediment depth of 5.24 m. Core LC12 collected from: 90 m water depth; 79.5948 degrees N, 22.44233 degrees E. LC12 sediment records consist of physical properties (magnetic susceptibility, wet bulk density), foraminifera and grain-size data. This project was funded by the Natural Environment Research Council (NERC) through Standard Grant NE/N011228/1. We thank the Alfred Wegner Institute, and particularly Angelika Humbert and Hicham Rafiq, for their significant logistic support through the iGRIFF project. Additional support was provided from Station Nord (Jorgen Skafte), Nordland Air, Air Greenland and the Joint Arctic Command. Naalakkersuisut, Government of Greenland, provided Scientific Survey (VU-00121) and Export (046/2017) licences for this work. No credit. completed Smith, James A. British Antarctic Survey Researcher author Callard, Louise Newcastle University Researcher author Sánchez Montes, Maria Luisa University of Colorado Boulder Researcher author McClymont, Erin L. Durham University Researcher author Lloyd, Jeremy M. Durham University Researcher author Ehrmann, Werner University of Leipzig Researcher author Roberts, David Durham University Researcher author Bentley, Michael J. Durham University Researcher author Jamieson, Stewart S. R. Durham University Researcher author Lane, Timothy P. Liverpool John Moores University Researcher author Darvill, Christopher M. University of Manchester Researcher author NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact asNeeded completed EARTH SCIENCE > Paleoclimate > Ocean/Lake Records > Lake Levels theme Global Change Master Directory (GCMD) Science Keywords 2026-01-27 publication 23 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Greenbelt MD United States of America https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Greenland Holocene epishelf lake ice shelf history palaeolimnology theme Blaso, NE Greenland Greenland place Geology theme GEMET - INSPIRE themes, version 1.0 2021-01-06 revision otherRestrictions no limitations to public access otherRestrictions no limitations license Open Government Licence v3.0 otherRestrictions Data released under Open Government Licence V3.0: otherRestrictions No restrictions apply. url url crossReference url url crossReference url url crossReference url url crossReference url url crossReference textTable eng utf8 geoscientificInformation 22.44233 22.44233 79.5948 79.5948 2017-07-20 2017-08-16 It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk. NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information distributor text/csv bytes 50176 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=3d37a409-c1e2-4c25-bdbc-fe495ccff653 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: A 2 m-long sediment core was recovered with a UWITEC KOL 'Kolbenlot' percussion piston corer to a total sediment depth of 5.24 m (LC12) in Blaso (LC12: 90 m water depth; 79.5948 degrees N, 22.44233 degrees E). Physical properties (magnetic susceptibility, wet bulk density) were measured on whole core using a GEOTEK multi-sensor core logger (MSCL) at the Department of Geography, Durham University, to characterise lithological properties and infer the depositional environment(s). Core sections were then split, described and sub-sampled. 1-cm thick sediment slices were taken every 10-20 cm. Grain-size analyses was performed on core LC12 using a Beckman Coulter LS 13 320 Laser Diffraction particle size analyser. Prior to analysis sediment samples were treated with 20 percent hydrogen peroxide to digest the organic material. A total of 6 (LC7) samples were processed for foraminiferal analysis to reconstruct the environmental conditions in Blaso. Sample volume varied between 0.5 and 5 ml (cm3) depending on average foraminiferal concentration (estimated based on initial scanning of samples). The variation in sample size was designed to allow ~300 to 500 specimens to be counted from all samples. Once extracted samples were soaked in deionized water for several hours to help disaggregate the sediment. Samples were then washed through a 500 micrometer and 63 micrometer mesh sieve to concentrate the foraminifera. The material collected on the 63 μm mesh sieve were retained for foraminiferal analysis. Foraminifera were identified and counted from the wet residue under a binocular microscope. Data collection: UWITEC KOL 'Kolbenlot' percussion piston corer GEOTEK multi-sensor core logger Binocular microscope Beckman Coulter LS 13 320 Laser Diffraction particle size analyser asNeeded completed