Replication Data for HgCl2 addition to pore water samples from cold seeps can affect the geochemistry of dissolved inorganic carbon ([DIC], d13CDIC) (doi:10.18710/3WLEGZ)

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Replication Data for HgCl2 addition to pore water samples from cold seeps can affect the geochemistry of dissolved inorganic carbon ([DIC], d13CDIC)

doi:10.18710/3WLEGZ

DataverseNO

2023-04-05

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Argentino, Claudio; Kalenitchenko, Dimitri; Lindgren, Matteus; Panieri, Giuliana, 2023, "Replication Data for HgCl2 addition to pore water samples from cold seeps can affect the geochemistry of dissolved inorganic carbon ([DIC], d13CDIC)", https://doi.org/10.18710/3WLEGZ, DataverseNO, V1

Replication Data for HgCl2 addition to pore water samples from cold seeps can affect the geochemistry of dissolved inorganic carbon ([DIC], d13CDIC)

doi:10.18710/3WLEGZ

Argentino, Claudio (UiT The Arctic University of Norway)

Kalenitchenko, Dimitri (UiT The Arctic University of Norway)

Lindgren, Matteus (UiT The Arctic University of Norway)

Panieri, Giuliana (UiT The Arctic University of Norway)

UiT The Arctic University of Norway

287869

223259

DataverseNO

UiT The Arctic University of Norway

Argentino, Claudio

Panieri, Giuliana

Argentino, Claudio

2022-08-20

https://doi.org/10.18710/3WLEGZ

Earth and Environmental Sciences, dissolved inorganic carbon, pore water, sample storage, sample preservation, stable carbon isotope, HgCl2, methane seepage, anaerobic oxidation of methane

The conventional use of mercuric chloride (HgCl2) as an antimicrobial agent in water samples for dissolved inorganic carbon (DIC) analysis poses health and environmental risks related to its handling and disposal. Even though there is an increasing interest in quantifying pore water DIC contribution to the ocean carbon cycle and deep-sea acidification, the paucity of comparative studies on marine pore waters prevents the modification of sampling protocols and HgCl2 still remains widely used. In this study we compared DIC concentrations and δ13CDIC composition in pore water samples from methane seepage areas in the Barents Sea and offshore N. Svalbard. Samples were extracted using 0.15 μm rhizon filters and split into two aliquots with 2–3 replicates each. Only one aliquot was treated with 10 μL saturated HgCl2(aq) and all samples were stored in the dark at 4 °C, prior to measurements ~30 days later. The samples yielded extremely wide ranges of DIC concentrations, from 1.8 mM to 20.1 mM, and δ13CDIC values, from −36.0‰ to −1.6‰ (VPDB), due to variable contributions of methane-derived DIC to the pore water system.

2020-11-02-2022-05-23

• West Bounding Longitude: 7.0
• East Bounding Longitude: 14.7
• South Bounding Latitude: 72.0
• North Bounding Latitude: 78.7

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<a href="http://creativecommons.org/publicdomain/zero/1.0">CC0 1.0</a>

Argentino, C., Kalenitchenko, D., Lindgren, M., Panieri, G., 2023. HgCl2 addition to pore water samples from cold seeps can affect the geochemistry of dissolved inorganic carbon ([DIC], δ13CDIC). Mar. Chem. 104236.

10.1016/j.marchem.2023.104236

Argentino, C., Kalenitchenko, D., Lindgren, M., Panieri, G., 2023. HgCl2 addition to pore water samples from cold seeps can affect the geochemistry of dissolved inorganic carbon ([DIC], δ13CDIC). Mar. Chem. 104236.

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