The DOI matches its Crossref record; 37 of the 37 references it cites were found in a registry or an index.
Authigenic Carbonate and the History of the Global Carbon Cycle
Open accessAbstract
The Third Way: Because organic carbon contains a larger fraction of the light isotope 12 C than inorganic carbonate, variations in the carbon isotopic record of sedimentary rocks are thought to represent changes in the amount of organic carbon buried as sediments (and thus removed from the rest of the carbon cycle). Schrag et al. (p. 540 ; see the Perspective by Canfield and Kump ) suggest that historically a third component was important: authigenic carbonate. Authigenic carbonate is not produced in any appreciable quantity today, but was much more abundant when the level of atmospheric oxygen was low.
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“Periods of low atmospheric oxygen and widespread marine anoxia in past climates have been favorable for the formation of abiotic authigenic carbonates in marine sediment pore fluids, representing a significant carbon sink54.”
From Acceleration of dolomitization by zinc in saline waters (2019) · cites this paper as [54]
In the citing paper
“These processes can alter carbonate δ 13 C and δ 18 O, as well as the trace element compositions (e.g., Schrag et al., 2013;Swart and Kennedy, 2012), limiting their use for paleoenvironmental proxies.”
From Trace elements at the intersection of marine biological and geochemical evolution (2016) · cites this paper as Schrag et al., 2013
Citations
Cites
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“…or methane, either derived from a large isotopically light carbon reservoir in the Neoproterozoic ocean (Rothman et al. 2003), produced at the sediment–water interface or within pore waters (Schrag et al. 2013), or introduced via detrital influx containing organic matter (Johnston et al. 2012).”
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Zhong, Q., Jia, Z., Yin, L., He, C., Lin, Z., Wang, X., Liang, Q., Feng, D., & Li, J. (2026) · Chemical Geology · doi:10.1016/j.chemgeo.2026.123396
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Experimental study on the isotope exchange in the carbonate-water system
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Upper Riphean and Vendian Chemostratigraphy (S. Lato) of the Southern and Middle Urals
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“…C-rich methanogenic diagenetic car-bonates in sediments, suggesting variations of the carbon isotope composition in the Neoproterozoic—are considered in (Pokrovsky et al., 2020, 2021; Schrag et al., 2013; Spence et al., 2016 and references therein) for these cases (Shuram–Wonoka anomaly included).”
Linking Cadomian erosion to the rise of Ediacaran ocean oxygenation
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Early diagenetic dolomitization in methane seep carbonates constrained by coupled Mo and Mg isotopes
Jin, M., Jia, Z., Li, J., Sun, X., Lin, S., Peckmann, J., Wang, Q., Chen, D., & Feng, D. (2026) · Geochimica et Cosmochimica Acta · doi:10.1016/j.gca.2026.07.015
Fichtner, V., Genske, F. S., Kooijman, E., & Drake, H. (2026) · Geochemistry Geophysics Geosystems · doi:10.1029/2025gc012798
“Microbially produced methane is characterized by 13 C depletion; hence, calcite containing carbon from oxidized, microbial methane typically exhibits very low δ 13 C values (Peckmann & Thiel, 2004; Schrag et al., 2013; Whiticar, 1999).”
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“…(Maloof et al. 2010), it seems possible that the negative Fortunian δ 13 C excursions might reflect a greater authigenic component in carbonates (Schrag et al. 2013) during these events associated with the buildup of carbonate saturation through anaerobic microbial sulfate reduction (Cui et al.…”
Helms, L., Gill, B. C., Tarhan, L. G., & Pruss, S. B. (2026) · Palaios · doi:10.2110/palo.2025.036
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Zheng, R., Wang, J., Wang, Y., Tong, X., Liu, Q., Thomas, E., & Dong, Y. (2026) · Paleoceanography and Paleoclimatology · doi:10.1029/2026pa005535
Metadata
- Authors
- Schrag, D. P., Higgins, J. A., Macdonald, F. A., & Johnston, D. T.
- Affiliations
- Harvard University (US)
- Princeton University (US)
- Venue
- Science
- Published
- 2013-02
- Volume
- 339
- Issue
- 6119
- Pages
- 540-543
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2114839168
- Semantic Scholar
- 271d01ca5514443dcc869aa77013e96976d7ffd6
- Cited by
- 532
- References
- 37
- Citations by year
- 2026: 28 · 2025: 48 · 2024: 53 · 2023: 44 · 2022: 45 · 2021: 47 · 2020: 39 · 2019: 44 · 2018: 30 · 2017: 36 · 2016: 40 · 2015: 40 · 2014: 18 · 2013: 19
- FWCI
- 26.42
- Type
- journal article
- Language
- en
- Open access
- green
- nrs.harvard.edu
- Licence
- cc-by
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
- Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Elemental Analysis
- Keywords
- authigenic carbonates, carbon cycle, carbon isotopes, early diagenesis, atmospheric oxygen, ocean anoxia, Proterozoic, Paleozoic, Triassic, carbon isotope excursion
- MeSH terms
- Anaerobiosis, Atmosphere, Carbon Isotopes, Carbonates, Methane, Oxidation-Reduction, Oxygen, Geologic Sediments, Carbon Cycle
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