73ee6512-a7c6-464c-bae0-38862ab8b87a English ISO/IEC 8859-1 (also known as Latin 1) dataset dataset NERC EDS Environmental Information Data Centre Lancaster Environment Centre, Library Avenue, Bailrigg Lancaster LA1 4AP UK info@eidc.ac.uk https://eidc.ac.uk/ EIDC website The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences. information pointOfContact 2025-11-13T16:20:30 UK GEMINI 2.3 WGS 84 / Pseudo-Mercator Luminescence signals and estimates of dose rate from sediment cores, Lake Suigetsu, Japan 2023-05-26 publication https://catalogue.ceh.ac.uk/id/73ee6512-a7c6-464c-bae0-38862ab8b87a 10.5285/73ee6512-a7c6-464c-bae0-38862ab8b87a doi: Rex, C.L., Staff, R.A., Sanderson, D.C.W., Cresswell, A.J., Nakagawa, T. (2023). Luminescence signals and estimates of dose rate from sediment cores, Lake Suigetsu, Japan. NERC EDS Environmental Information Data Centre 10.5285/73ee6512-a7c6-464c-bae0-38862ab8b87a This dataset contains information about the luminescence signals measured from the Lake Suigetsu sediment cores across four time periods: the last 500 years (537 to -47 cal BP), the Laschamp geomagnetic excursion (44,828 to 35,550 cal BP), the limit of varves (73,130 to 69,413 yr BP) and glacial termination I (139,499 to 118,001 yr BP). Sampling intervals varied between time periods (see supporting documentation for more information). The luminescence signals were quantified using Portable Optically Stimulated Luminescence (POSL) analysis of bulk sediment using blue light and infrared exposures, and laboratory profiling analysis of prepared quartz fine fractions (using blue light exposures) and polymineral fine fractions (using blue light and infrared exposures). This data was collected to determine if these methods could be used to detect past catchment environmental change. Alongside this dataset, we estimated dose rate at six points across the four time periods studied using elemental concentrations. This data was collected to see if the luminescence signals measured from the Lake Suigetsu cores could be used to determine burial age. The work was supported by the NERC IAPETUS2 Doctoral Training Partnership. Full details about this dataset can be found at https://doi.org/10.5285/73ee6512-a7c6-464c-bae0-38862ab8b87a Rex, C.L. University of Glasgow c.rex.1@research.gla.ac.uk https://orcid.org/0000-0003-2068-4836 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Staff, R.A. University of Glasgow Richard.Staff@glasgow.ac.uk https://orcid.org/0000-0002-8634-014X ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Sanderson, D.C.W. University of Glasgow David.Sanderson@glasgow.ac.uk https://orcid.org/0000-0002-9615-4412 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Cresswell, A.J. University of Glasgow Alan.Cresswell@glasgow.ac.uk https://orcid.org/0000-0002-5100-8075 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Nakagawa, T. Ritsumeikan University nakag@fc.ritsumei.ac.jp https://orcid.org/0000-0003-0831-6803 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Rex, C. University of Glasgow c.rex.1@research.gla.ac.uk pointOfContact NERC EDS Environmental Information Data Centre info@eidc.ac.uk publisher NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian Rex, C.L. c.rex.1@research.gla.ac.uk owner Lake Suigetsu GeoNames 2006-01-01 creation Japan Luminescence Sediment core Core profiling otherRestrictions no limitations otherRestrictions This resource is available under the terms of the Open Government Licence otherRestrictions If you reuse this data, you should cite: Rex, C.L., Staff, R.A., Sanderson, D.C.W., Cresswell, A.J., Nakagawa, T. (2023). Luminescence signals and estimates of dose rate from sediment cores, Lake Suigetsu, Japan. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/73ee6512-a7c6-464c-bae0-38862ab8b87a textTable English utf8 inlandWaters 135.148 136.653 35.226 36.267 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://data-package.ceh.ac.uk/data/73ee6512-a7c6-464c-bae0-38862ab8b87a Download the data Download a copy of this data download https://data-package.ceh.ac.uk/sd/73ee6512-a7c6-464c-bae0-38862ab8b87a.zip Supporting information Supporting information available to assist in re-use of this dataset information dataset dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 The Lake Suigetsu cores were subsampled under red light conditions following the sampling schemes detailed in the supporting documentation. Samples were immediately subjected to portable optically stimulated luminescence (POSL) analysis using a POSL reader to yield “net” and “depletion” values following blue light (POSL) and infrared (PIRSL) exposures, as well as a POSL/IRSL ratio. Subsequently, the samples underwent physical separation to isolate fine grains (5-50µm) and then chemically treated to isolate quartz and polymineral fractions. These fractions were then measured in a Risø TL/OSL system to yield estimates of equivalent dose and sensitivity when exposed to blue light (quartz and polymineral) and infrared light (polymineral only). Separate subsamples were analysed using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) to determine the concentration of uranium, thorium and potassium in each. These concentrations were then used to provide estimates of dose rate based on two scenarios – one assuming activity-free grains, and one assuming that the activity of each grain is identical to that of the matrix. Assumptions of water content and cosmogenic dose rate were made to facilitate these calculations.