Stable isotope and U/Th speleothem measurements from Vietnam, 200,000–334 years BP
[This dataset is embargoed until November 1, 2025]. The data includes carbon and oxygen stable isotopes together with top and bottom U-Th ages of stalagmites collected in Northwest, Central and Southern Vietnam. The purpose of this work was to identify suitable specimens that can be used for palaeoclimatic reconstructions. The stalagmites collected were found broken in-situ, and the exact location of the caves is not given here for cave protection purposes. The stalagmites were collected in February and March 2023, and geochemical analyses performed between April and December 2023. Full details about this dataset can be found at
https://doi.org/10.5285/f1415ba4-35cd-40db-a717-db6693b03eb0
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Identification info
- Metadata Language
- English (en)
- Character set
- utf8
- Dataset Reference Date ()
- 2024-07-25
- Identifier
- doi: / 10.5285/f1415ba4-35cd-40db-a717-db6693b03eb0
- Other citation details
- Ersek, V., Bendle, J. (2024). Stable isotope and U/Th speleothem measurements from Vietnam, 200,000–334 years BP. NERC EDS Environmental Information Data Centre 10.5285/f1415ba4-35cd-40db-a717-db6693b03eb0
- GEMET - INSPIRE themes, version 1.0 ()
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- Geology
- Limitations on Public Access
- otherRestrictions
- Other constraints
- Embargoed
- Use constraints
- otherRestrictions
- Use constraints
- otherRestrictions
- Other constraints
- If you reuse this data, you should cite: Ersek, V., Bendle, J. (2024). Stable isotope and U/Th speleothem measurements from Vietnam, 200,000–334 years BP. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/f1415ba4-35cd-40db-a717-db6693b03eb0
- Spatial representation type
- textTable
- Topic category
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- Climatology, meteorology, atmosphere
- Geoscientific information
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S
E
W
![](https://data-search.nerc.ac.uk/geonetwork/srv/api/regions/geom.png?geomsrs=EPSG:4326&geom=POLYGON((109.937%208.238,109.937%2023.488,101.851%2023.488,101.851%208.238,109.937%208.238)))
- Code
- WGS 84
Distribution Information
- Data format
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Comma-separated values (CSV)
()
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Comma-separated values (CSV)
()
- Quality Scope
- dataset
- Other
- dataset
Report
- Dataset Reference Date ()
- 2010-12-08
- Statement
- Samples were brought to the laboratory from the field and cleaned with deionised water. The stalagmites were cut in half along the growth axis using a diamond wiresaw. Subsamples for stable isotopes and U-Th dating were collected using a Sherline 2000 micromill. Stable isotope values were calculated based on international standards NBS18 and IAEA60. U-Th ages are reported relative to 1950 CE and assume a Thorium-230/Thorium-232 atomic ratio of 4 (± 2) x 10e-6. Samples were completely dissolved in diluted hydrochloric acid and spiked with a Thorium-229/Uranium-233,236 tracer, after which they were converted to nitric form by boiling nitric acid. The U/Th separations were conducted with extraction chromatography and the final U and Th fractions were measured using a Thermo Scientific Neptune MC-ICPMS.
Metadata
- File identifier
- f1415ba4-35cd-40db-a717-db6693b03eb0 XML
- Metadata Language
- English (en)
- Character set
- ISO/IEC 8859-1 (also known as Latin 1)
- Resource type
- dataset
- Hierarchy level name
- dataset
- Metadata Date
- 2024-07-29T10:25:34
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
NERC EDS Environmental Information Data Centre
Lancaster Environment Centre, Library Avenue, Bailrigg
,
Lancaster
,
LA1 4AP
,
UK
https://eidc.ac.uk/