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Bromine counts from XRF scanning as an estimate of the marine organic carbon content of sediment cores
Abstract
XRF sediment core scanning technology is increasingly used to quantify sediment composition. The overall good correlation between biophilic halogen bromine (Br) and sedimentary total organic carbon (TOC) potentially allows the fast estimation of down core TOC profiles by XRF scanning. In order to test this approach we present data from the Arabian Sea and a Mediterranean brine basin, comparing XRF core scanning Br data with discrete sample TOC analyses. Overall, Br counts and TOC show a clear correlation, except when stable carbon isotope and C/N data indicate intervals characterized by enhanced input of terrestrial organic matter. Hence, solid phase Br is exclusively associated with marine organic matter (MOC) and can be used as a direct estimate of this parameter after a calibration is established. High pore water Br in the brine core steepens the Br/TOC correlation but after salt correction shows a nearly identical gradient to that of the Arabian Sea core.
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Br enrichments suggest higher organic carbon contents.
“Furthermore, we observe simultaneous enrichments of Br (Fig. 5), which suggests higher organic carbon contents (Ziegler et al., 2008).”
From Are recent changes in sediment manganese sequestration in the euxinic basins of the Baltic Sea linked to the expansion of hypoxia? (2015) · cites this paper as Ziegler et al., 2008
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Cited by
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Lenz, C., Jilbert, T., Conley, D. J., Wolthers, M., & Slomp, C. P. (2015) · Biogeosciences · doi:10.5194/bg-12-4875-2015 · Cited by 61
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Metadata
- Authors
- Ziegler, M., Jilbert, T., de Lange, G. J., Lourens, L. J., & Reichart, G.
- Affiliations
- Utrecht University (NL)
- Venue
- Geochemistry, Geophysics, Geosystems
- Publisher
- American Geophysical Union (AGU)
- Published
- 2008-05
- Volume
- 9
- Issue
- 5
- ISSN
- 1525-2027 (ISSN-L)
- OpenAlex
- W1641689766
- Cited by
- 242
- References
- 0
- Citations by year
- 2026: 16 · 2025: 17 · 2024: 19 · 2023: 18 · 2022: 12 · 2021: 20 · 2020: 16 · 2019: 15 · 2018: 17 · 2017: 13 · 2016: 17 · 2015: 16 · 2014: 15 · 2013: 12 · 2012: 6
- FWCI
- 3.00
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Geochemistry Geophysics Geosystems (publishedVersion)
- ORCA Online Research @Cardiff (Cardiff University) (submittedVersion)
- Funders
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek
- Topics
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine Plankton and Biogeochemistry
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
- Keywords
- bromine, total organic carbon, marine organic carbon, XRF core scanning, sediment core, terrestrial organic matter, Arabian Sea, carbon isotopes, C/N ratio
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