The DOI matches its Crossref record; 50 of the 50 references it cites were found in a registry or an index.
Sedimentary nitrogen isotopic ratio as a recorder for surface ocean nitrate utilization
Abstract
In two contrasting regions of the ocean, the equatorial Pacific and the southern ocean, the δ 15 N of core top sediments were strongly related to [NO 3 − ] in surface waters. With distance from the equator in the equatorial Pacific, δ 15 N increased from 7‰ to 16‰ as [NO 3 − ] decreased from 8μM to < 0.1 μM. Going from 60° to 30° S in the SE Indian Ocean, core top δ 15 N increased from 5‰ to 11‰ as surface [NO 3 − ] decreased from 25μM to < 0.1 μM. These results are strong evidence that sedimentary δ 15 N in these regions is recording the increasing isotopic enrichment of near‐surface NO 3 − with its depletion by phytoplankton. In the case of the equatorial Pacific, δ 15 N values for sinking particles collected at 150 m matched well the core top sediment values, demonstrating little diagenetic alteration of the near‐surface generated isotopic signal. These equatorial Pacific data sets have variations with near‐surface [NO 3 − ] consistent with Rayleigh fractionation kinetics for a fractionation factor (ϵ u ) of 2.5‰. This value is substantially lower than previously found for temperate or polar regions, perhaps as a result of differences in phytoplankton species assemblage or growth condition. In the southern ocean south of the polar front, comparison of δ 15 N values for opal‐rich sediments south and sinking particles indicates an apparent +5‰ diagenetic enrichment relative to the surface‐generated signal that requires further investigation. This exception aside, our observations show that the surface‐water relationship of increasing δ 15 N with increasing NO 3 − depletion is generally transmitted to and preserved in the sediments, an important requirement for further development and application of this important paleoceanographic tool.
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“Sedimentary organics have δ15N = 7 ± 1‰ compared to 0‰ in N2 in modern and ancient air and − 5 ± 2‰ in the mantle (151, 152).”
From The Archean atmosphere (2020) · cites this paper as [152]
In the citing paper
“Sedimentary organics have δ15N = 7 ± 1‰ compared to 0‰ in N2 in modern and ancient air and − 5 ± 2‰ in the mantle (151, 152).”
From The Archean atmosphere (2020) · cites this paper as [152]
In the citing paper
“Sedimentary organics have δ15N = 7 ± 1‰ compared to 0‰ in N2 in modern and ancient air and − 5 ± 2‰ in the mantle (151, 152).”
From The Archean atmosphere (2020) · cites this paper as [152]
Citations
Cites
Influence of diet on the distribution of nitrogen isotopes in animals
DeNiro, M. J., & Epstein, S. (1981) · Geochimica et Cosmochimica Acta · doi:10.1016/0016-7037(81)90244-1 · Cited by 6,183
Minagawa, M., & Wada, E. (1984) · Geochimica et Cosmochimica Acta · doi:10.1016/0016-7037(84)90204-7 · Cited by 4,169
A new model for the role of the oceans in determining atmospheric P CO2
Sarmiento, J. L., & Toggweiler, J. R. (1984) · Nature · doi:10.1038/308621a0 · Cited by 898
Food web structure on Georges Bank from stable C, N, and S isotopic compositions
Fry, B. (1988) · Limnology and Oceanography · doi:10.4319/lo.1988.33.5.1182 · Cited by 820
Knauer, G. A., Martin, J. H., & Bruland, K. W. (1979) · Deep Sea Research Part A Oceanographic Research Papers · doi:10.1016/0198-0149(79)90089-x · Cited by 658
Cline, J., & Kaplan, I. (1975) · Marine Chemistry · doi:10.1016/0304-4203(75)90009-2 · Cited by 494
Cadmium: Chemical tracer of deepwater paleoceanography
Boyle, E. A. (1988) · Paleoceanography · doi:10.1029/pa003i004p00471 · Cited by 491
An estimate of new production in the equatorial Pacific
Chavez, F., & Barber, R. (1987) · Deep Sea Research Part A Oceanographic Research Papers · doi:10.1016/0198-0149(87)90073-2 · Cited by 483
Changes in atmospheric CO2: Influence of the marine biota at high latitude
Knox, F., & McElroy, M. B. (1984) · Journal of Geophysical Research Atmospheres · doi:10.1029/jd089id03p04629 · Cited by 472
Altabet, M. (1988) · Deep Sea Research Part A Oceanographic Research Papers · doi:10.1016/0198-0149(88)90130-6 · Cited by 448
Self-citation
Research works printed but not linked: 5
- Altabet M. A., 1993, Carbon Cycling in the Glacial Ocean: Constraints on the Ocean's Role in Global Change
- Gordon A. L., 1982, Southern Ocean Atlas: Thermohaline and Chemical Distribution Data Set
- Miyake Y., 1967, The abundance of 15N/14N in marine environments, Rec. Oceanogr. Works Jpn., 9, 37
- Montoya J. P. Natural abundance of15N in marine and estuarine plankton: Studies of biological isotopic fractionation and plankton processes Ph.D. thesis Harvard Univ. Cambridge Mass. 1990.
- Wada E., 1980, Isot. Mar. Chem, 375
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What happens to terrestrial organic matter in the ocean?
Hedges, J. I., Keil, R. G., & Benner, R. (1997) · Organic Geochemistry · doi:10.1016/s0146-6380(97)00066-1 · Cited by 1,573
Glacial/interglacial variations in atmospheric carbon dioxide
Sigman, D. M., & Boyle, E. A. (2000) · Nature · doi:10.1038/35038000 · Cited by 1,439
Lehmann, M. F., Bernasconi, S. M., Barbieri, A., & McKenzie, J. A. (2002) · Geochimica et Cosmochimica Acta · doi:10.1016/s0016-7037(02)00968-7 · Cited by 864
Meyers, P. A., & Teranes, J. L. (2005) · Kluwer Academic Publishers eBooks · doi:10.1007/0-306-47670-3_9 · Cited by 769
François, R., Altabet, M. A., Yu, E., Sigman, D. M., Bacon, M. P., Frank, M., Bohrmann, G., Bareille, G., & Labeyrie, L. D. (1997) · Nature · doi:10.1038/40073 · Cited by 602
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Metadata
- Authors
- Altabet, M. A., & Francois, R.
- ORCID
- Altabet, Mark A.
- Venue
- Global Biogeochemical Cycles
- Publisher
- American Geophysical Union (AGU)
- Published
- 1994-03
- Volume
- 8
- Issue
- 1
- Pages
- 103-116
- ISSN
- 0886-6236 (ISSN-L)
- 1944-9224
- OpenAlex
- W2030125283
- Cited by
- 792
- References
- 50
- Citations by year
- 2026: 27 · 2025: 32 · 2024: 35 · 2023: 25 · 2022: 24 · 2021: 30 · 2020: 28 · 2019: 31 · 2018: 39 · 2017: 23 · 2016: 21 · 2015: 30 · 2014: 36 · 2013: 30 · 2012: 24
- FWCI
- 10.88
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Global Biogeochemical Cycles (publishedVersion)
- Helmholtz Centre for Ocean Research Kiel (GEOMAR) (acceptedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine Plankton and Biogeochemistry
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
- Keywords
- nitrogen isotopes, nitrate utilization, Rayleigh fractionation, phytoplankton nitrogen uptake, diagenesis, sinking particles, equatorial Pacific, Southern Ocean, paleoceanography, nitrogen cycling
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