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Knight, A.C.G.; Bridgestock, L.; Tipper, E.T.

Barium concentration and stable isotope ratio measurements of the dissolved and adsorbed phases from laboratory batch experiments and Himalayan river samples from 2015-2016

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This dataset is available under the terms of the Open Government Licence

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https://doi.org/10.5285/cfa9abd4-1200-47b6-9553-aa1b6e4d9ffd
This dataset contains barium concentration and stable isotope ratio measurements of the adsorbed and dissolved phases associated with batch laboratory adsorption-desorption reactions using common environmental mineral adsorbents (clay minerals: kaolinite & montmorillonite, iron-oxyhydroxides: goethite and ferrihydrite) and surface waters (river water, groundwater and seawater). The experiments systematically changed several variables (reaction duration, adsorbent concentration, water type and the pre-experiment adsorbent cleaning procedure).

Barium concentration and stable isotope ratio measurements of the adsorbed and dissolved phases from two Himalayan rivers (Saptakoshi River and Sunkoshi River) are also provided.
Publication date: 2024-07-03
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More information

View numbers valid from 03 July 2024 Download numbers valid from 03 July 2024 (information prior to this was not collected)

Format

Comma-separated values (CSV)

Spatial information

Study area
Spatial representation type
Tabular (text)
Spatial reference system
WGS 84

Temporal information

Temporal extent
2015-05-20    to    2016-09-28

Provenance & quality

All experiments and analyses were performed in the Department of Earth Sciences at the University of Cambridge.

Barium concentrations were determined in two independent ways:
1. Inductively coupled plasma optical emission spectroscopy (ICP-OES) on an Agilent 5100.
2. Isotope dilution via thermal ionisation mass spectrometer (TIMS) on a Thermo Fischer Scientific Triton Plus.

Barium isotope ratios were measured via TIMS on a Thermo Fischer Scientific Triton Plus. Barium was separated from other elements via column elution chromatography (AG50W-X8 resin). A double-spike procedure was used to correct for mass-dependent isotope fractionation. The NIST-3104a and NBS-127 standards were used to quantify the uncertainty associated with isotope ratio measurements (0.03 ‰).

Field samples of river water and sediment were collected from the surface of the water column from stationary sampling locations (Chatara and Khurkot) as part of the Perturbations of Earth Surface Processes by Large Earthquakes (PRESSurE) Project: https://www.gfz-potsdam.de/en/section/geomorphology/projects/pressure/. The water and sediment samples were immediately separated following collection via filtration through 0.22-micrometre polyethersulfone (PES) membrane filters. Further information on the field samples can be found at: https://doi.org/10.5880/fidgeo.2024.008. The desorption of barium from the surfaces of sediment and the laboratory adsorbents was achieved using repeated additions of 1.0 mol/L ammonium chloride (Puratronic™, 99.999% (metals basis), Thermo Scientific Chemicals).

Licensing and constraints

This dataset is available under the terms of the Open Government Licence

Cite this dataset as:
Knight, A.C.G.; Bridgestock, L.; Tipper, E.T. (2024). Barium concentration and stable isotope ratio measurements of the dissolved and adsorbed phases from laboratory batch experiments and Himalayan river samples from 2015-2016. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/cfa9abd4-1200-47b6-9553-aa1b6e4d9ffd

Correspondence/contact details

Knight, A.C.G.
University of Cambridge
Fitzwilliam House 32 Trumpington Street
Cambridge
CB21QY
UNITED KINGDOM
 acgk2@cam.ac.uk

Authors

Knight, A.C.G.
University of Cambridge
Bridgestock, L.
University of St Andrews
Tipper, E.T.
University of Cambridge

Other contacts

Rights holder
University of Cambridge
Custodian
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk
Publisher
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk

Additional metadata

Topic categories
environment
geoscientificInformation
INSPIRE theme
Geology
Keywords
adsorption , aqueous geochemistry , barium , barium isotopes , clay , clay minerals , desorption , Environmental survey , Himalayas , Hydrology , ion-exchange , iron-oxyhydroxides , isotope experiments , Nepal , Saptakoshi River , Sunkoshi River
Funding
Natural Environment Research Council Award: NE/S007164/1
Last updated
08 January 2025 13:48