410f4e27-3214-466f-9de3-e19848d8c5c2 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 2021-01-06 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 Marine Isotope Stage 5e diatom assemblages in marine sediment core MD03-2603 (-64.28 degN, 139.38 degE, Cruise MD130) 2021-01-06 creation 2021-01-06 revision 2021-01-06 publication 2021-01-06 released 1.0 https://doi.org/10.5285/410f4e27-3214-466f-9de3-e19848d8c5c2 doi GB/NERC/BAS/PDC/01447 https://data.bas.ac.uk/ NE/L002531/1 award Please cite this item as: Chadwick, M., & Allen, C. (2021). Marine Isotope Stage 5e diatom assemblages in marine sediment core MD03-2603 (-64.28 degN, 139.38 degE, Cruise MD130) (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/410f4e27-3214-466f-9de3-e19848d8c5c2 This dataset presents the relative diatom abundances of 55 species/groups from the 132-120 ka interval in marine sediment core MD03-2603 (-64.28 degN, 139.38 degE). This age interval corresponds to the peak of Marine Isotope Stage 5e (130- 116 ka). Microscope slides were prepared using a method adapted from Scherer (1994) and 300+ diatom valves were counted for each depth sample to produce the relative percentage abundance of each diatom species/group. This project was funded by the UK Natural Environment Research Council Grant NE/L002531/1 No credit. completed Chadwick, Matthew British Antarctic Survey Researcher author Allen, Claire British Antarctic Survey 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 > Biosphere > Microbiota Taxonomy > Diatoms EARTH SCIENCE > Solid Earth > Geochemistry 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 Diatoms Interglacial Sediment core theme Southern Ocean place Habitats and biotopes 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 None url url largerWorkCitation doi doi crossReference url url crossReference url url crossReference url url crossReference url url crossReference url url crossReference url url crossReference url url crossReference url url crossReference doi doi crossReference doi doi crossReference doi doi crossReference doi doi crossReference url url crossReference textTable eng utf8 biota environment geoscientificInformation 139.38 139.38 -64.28 -64.28 2003-02-10 2003-02-10 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/plain bytes 8192 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=410f4e27-3214-466f-9de3-e19848d8c5c2 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Sediment core material was collected on Cruise MD130 (2003) R/V Marion DuFresne II (https://doi.org/10.17600/3200040). For the diatom assemblage data, microscope slides were produced using a method adapted from Scherer (1994). Samples of 7-20 mg were exposed to 10% Hydrochloric acid to remove any carbonate, 30% Hydrogen peroxide to break down organic material and a 4% Sodium Hexametaphosphate solution to promote disaggregation and placed in warm water bath for minimum 12 hours. The material was homogenised into a ~10cm water column and allowed to settle randomly onto coverslips over a minimum of 4 hours. The water was drained away and coverslips were mounted on microscope slides with Norland Optical Adhesive (NOA 61). Slides were investigated with a light microscope (Olympus BH-2 at x1000 magnification) and a minimum of 300 diatom valves were counted for each sample. Age Model Presti et al. (2011) align core MD03-2603 to the LR04 chronology by correlating the sediment core Ba/Al and Ba/Ti ratios to the LR04 benthic foraminifera δ18O stack (Lisiecki & Raymo 2005). Translation between the LR04 and EDC3 chronologies uses the conversion tables in Parrenin et al. (2013). Data collection: Instrumentation: Calypso corer, Diatom settling tanks and bench, Olympus BH-2 light microscope. Data quality: All diatom abundance values have an error of ±0.16 %. Ages for samples have a chronological uncertainty of ~2 ka. Sediment samples have a depth resolution of 4 cm and age resolution of 0.4-0.9 ka. asNeeded completed