NERC Data Catalogue Service
Stable isotope and U/Th speleothem measurements from Vietnam, 200,000–334 years BP
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
Simple
- Date (Publication)
- 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
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- 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
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- textTable Text, table
- Metadata language
- EnglishEnglish
- Character set
- utf8 UTF8
- Topic category
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- Climatology, meteorology, atmosphere
- Geoscientific information
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- Unique resource identifier
- WGS 84
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- Date (Publication)
- 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.
- File identifier
- f1415ba4-35cd-40db-a717-db6693b03eb0 XML
- Metadata language
- EnglishEnglish
- Character set
- ISO/IEC 8859-1 (also known as Latin 1) 8859 Part 1
- Hierarchy level
- dataset Dataset
- Hierarchy level name
- dataset
- Date stamp
- 2025-11-13T16:22:50
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
Point of contact
NERC EDS Environmental Information Data Centre
Lancaster Environment Centre, Library Avenue, Bailrigg
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Lancaster
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LA1 4AP
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UK
https://eidc.ac.uk/
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