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PANGAEA.
Data Publisher for Earth & Environmental Science

Fuhr, Michael; Dale, Andy W; Wallmann, Klaus; Bährle, Rebecca; Kalapurakkal, Habeeb Thanveer; Sommer, Stefan; Spiegel, Timo; Buchholz, Björn; Schmidt, Mark; Perner, Mirjam; Geilert, Sonja: Total alkalinity during benthic weathering of calcite and dunite in benthocosm experiments [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.974040 (dataset in review)

Abstract:
Enhanced benthic weathering has been proposed to serve as a efficient negative emission strategy. The precise weathering behaviour of calcite and dunite was investigated in long-term experiments in benthocosms. These experiments were conducted between Sept. 2022 and Sept. 2023 ashore at the Kiel Fjord. The latter are large plastic containers (~0.8 m²) that are partly filled with sediments, with constant flow-through of Baltic Sea bottom water. The sediments were amended with calcite and dunite in triplicate. Three additional benthocosms were left unamended to serve as controls. These experiments elucidate the actual weathering behavior of calcite and dunite under conditions as close to the natural system as possible. Samples were obtained using benthic chambers that were placed on the sediment for three hours. Samples were taken at the beginning (_in) and at the end of the deployment (_out).
Keyword(s):
benthocosm; calcite weathering; enhanced weathering; experiment
Related to:
References:
Ivanenkov, V N; Lyakhin, Y I (1978): Determination of the alkalinity of seawater. In: Bordovskii, O K; Ivanenkov, V N (Eds.), Methods for Hydrochemical Studies in the Ocean, Nauka, Moscow, 110-115
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0895A: DAM CDRmare - RETAKE, GEOMAR
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Type of studyStudy typeFuhr, Michael
2Sample typeSamp typeFuhr, Michael
3Sampling date/time, experimentDate/time sampling expFuhr, Michael
4TreatmentTreatFuhr, Michael
5Sample IDSample IDFuhr, Michael
6Alkalinity, totalATmmol(eq)/lFuhr, MichaelTitration
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
864 data points

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