BGS Hosted Metadata
Luminescence signals and estimates of dose rate from sediment cores, Lake Suigetsu, Japan
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
Simple
- Date (Publication)
- 2023-05-26
- Citation identifier
- https://catalogue.ceh.ac.uk/id/73ee6512-a7c6-464c-bae0-38862ab8b87a
- Citation identifier
- doi: / 10.5285/73ee6512-a7c6-464c-bae0-38862ab8b87a
- Other citation details
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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
- Point of contact
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Organisation name Individual name Electronic mail address Role University of Glasgow
Rex, C.L. Author University of Glasgow
Staff, R.A. Author University of Glasgow
Sanderson, D.C.W. Author University of Glasgow
Cresswell, A.J. Author Ritsumeikan University
Nakagawa, T. Author University of Glasgow
Rex, C.
Point of contact NERC EDS Environmental Information Data Centre Publisher NERC EDS Environmental Information Data Centre Custodian Rex, C.L.
Owner
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GeoNames
- Keywords
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Japan
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Luminescence
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Sediment core
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Core profiling
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- Access constraints
- Other restrictions
- Other constraints
- no limitations
- Use constraints
- Other restrictions
- Use constraints
- Other restrictions
- Other constraints
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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
- Spatial representation type
- Text, table
- Language
- English
- Character set
- UTF8
- Topic category
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- Inland waters
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- Unique resource identifier
- WGS 84 / Pseudo-Mercator
- Distribution format
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Name Version Comma-separated values (CSV)
- Distributor contact
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Organisation name Individual name Electronic mail address Role NERC EDS Environmental Information Data Centre
Distributor
- OnLine resource
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Protocol Linkage Name https://data-package.ceh.ac.uk/data/73ee6512-a7c6-464c-bae0-38862ab8b87a Download the data
- OnLine resource
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Protocol Linkage Name https://data-package.ceh.ac.uk/sd/73ee6512-a7c6-464c-bae0-38862ab8b87a.zip Supporting information
- Hierarchy level
- Dataset
- Other
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dataset
Conformance result
- Title
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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
- Date (Publication)
- 2010-12-08
- Statement
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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.
Metadata
- File identifier
- 73ee6512-a7c6-464c-bae0-38862ab8b87a XML
- Metadata language
- English
- Character set
- 8859 Part 1
- Hierarchy level
- Dataset
- Hierarchy level name
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dataset
- Date stamp
- 2025-11-13T16:20:30
- Metadata standard name
- UK GEMINI
- Metadata standard version
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2.3
- Metadata author
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Organisation name Individual name Electronic mail address Role NERC EDS Environmental Information Data Centre Point of contact
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