Dataset: Elemental and isoptopic composition of sediment and biomass from the Carpinteria Salt March sampled in 2020 and 2021

ValidatedFinal no updates expectedDOI: 10.26008/1912/bco-dmo.938709.1Version 1 (2024-09-30)Dataset Type:Other Field Results

Principal Investigator: Morgan Reed Raven (University of California-Santa Barbara)

Scientist: Maya Gomes (Johns Hopkins University)

Scientist: Samuel Webb (Stanford University)

Student, Contact: Lena R. Capece (University of California-Santa Barbara)

Student: Alexandra Phillips (University of California-Santa Barbara)

BCO-DMO Data Manager: Karen Soenen (Woods Hole Oceanographic Institution)

Project: Carbon Storage in Mangrove Ecosystems via Abiotic Sulfurization (Mangroves OS)

Abstract

Here we provide data that help to evaluate organic matter sulfurization and pyrite formation in a salt marsh in California. We collected six sediment cores from three habitat types at Carpinteria Salt Marsh Reserve (34.41336°N, 119.84365°W) in July 2020. One core was used to establish dry bulk density, while the other was reserved for geochemical measurements. Both cores were kept at -20°C until analysis could be carried out. We provide elemental concentrations (organic C/N/S, Fe, pyrite) and is...

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Spatial Extent: N:34.40 E:-119.54 S:34.40 W:-119.54
Temporal Extent: 2020-07-01 - 2021-01-16
UC Carpinteria Salt Marsh Reserve located in Carpinteria, CA

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We collected six sediment cores from three habitat types at Carpinteria Salt Marsh Reserve (34.41336°N, 119.84365°W) in July 2020. One core was used to establish dry bulk density, while the other was reserved for geochemical measurements. Both cores were kept at -20°C until analysis could be carried out. We provide elemental concentrations (organic C/N/S, Fe, pyrite) and isotopic compositions (δ13C, δ34S) of important carbon, iron and sulfur sediment pools. Additional biomass samples were collected between 2020 and 2023 and were also analyzed for elemental (C/N/S) and isotopic compositions (δ13C, δ34S).

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Methods
Burdige, D. J. (2007). Preservation of Organic Matter in Marine Sediments:  Controls, Mechanisms, and an Imbalance in Sediment Organic Carbon Budgets? Chemical Reviews, 107(2), 467–485. https://doi.org/10.1021/cr050347q
Methods
Canfield, D. E., Raiswell, R., Westrich, J. T., Reaves, C. M., & Berner, R. A. (1986). The use of chromium reduction in the analysis of reduced inorganic sulfur in sediments and shales. Chemical Geology, 54(1-2), 149–155. doi:10.1016/0009-2541(86)90078-1
Methods
Fry, B., Silva, S. R., Kendall, C., & Anderson, R. K. (2002). Oxygen isotope corrections for online δ34S analysis. Rapid Communications in Mass Spectrometry, 16(9), 854–858. Portico. https://doi.org/10.1002/rcm.651
Methods
Jeitner, T. M. (2014). Optimized ferrozine-based assay for dissolved iron. Analytical Biochemistry, 454, 36–37. https://doi.org/10.1016/j.ab.2014.02.026
Methods
Phillips, A. A., Ulloa, I., Hyde, E., Agnich, J., Sharpnack, L., O’Malley, K. G., Webb, S. M., Schreiner, K. M., Sheik, C. S., Katsev, S., & Raven, M. R. (2023). Organic sulfur from source to sink in low‐sulfate Lake Superior. Limnology and Oceanography, 68(12), 2716–2732. Portico. https://doi.org/10.1002/lno.12454

Capece, L. R., Raven, M. R., Phillips, A., Webb, S., Gomes, M. (2024). Elemental and isoptopic composition of sediment and biomass from the Carpinteria Salt March sampled in 2020 and 2021. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-09-30 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.938709.1 [access date]

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Funded by the U.S. National Science Foundation