Articles | Volume 18, issue 1
https://doi.org/10.5194/essd-18-675-2026
https://doi.org/10.5194/essd-18-675-2026
Review article
 | 
27 Jan 2026
Review article |  | 27 Jan 2026

The global Deep-time Sediment Nitrogen Isotopes in Marine Systems (DSMS-NI) database

Yong Du, Huyue Song, Thomas J. Algeo, Hui Zhang, Jianwei Peng, Yuyang Wu, Jiankang Lai, Xiang Shu, Hanchen Song, Lai Wei, Jincheng Zhang, Eva E. Stüeken, Stephen E. Grasby, Jacopo Dal Corso, Xiaokang Liu, Daoliang Chu, Li Tian, Qingzhong Liang, Xinchuan Li, Hong Yao, and Haijun Song

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Cited articles

Ader, M., Thomazo, C., Sansjofre, P., Busigny, V., Papineau, D., Laffont, R., Cartigny, P., and Halverson, G. P.: Interpretation of the nitrogen isotopic composition of Precambrian sedimentary rocks: Assumptions and perspectives, Chem. Geol., 429, 93–110, https://doi.org/10.1016/j.chemgeo.2016.02.010, 2016. 
Algeo, T. J., Rowe, H., Hower, J. C., Schwark, L., Herrmann, A., and Heckel, P.: Changes in ocean denitrification during Late Carboniferous glacial–interglacial cycles, Nat. Geosci., 1, 709–714, https://doi.org/10.1038/ngeo307, 2008. 
Algeo, T. J., Meyers, P. A., Robinson, R. S., Rowe, H., and Jiang, G. Q.: Icehouse–greenhouse variations in marine denitrification, Biogeosciences, 11, 1273–1295, https://doi.org/10.5194/bg-11-1273-2014, 2014. 
Altabet, M. A., Murray, D. W., and Prell, W. L.: Climatically linked oscillations in Arabian Sea denitrification over the past 1 m.y.: Implications for the marine N cycle, Paleoceanography, 14, 732–743, https://doi.org/10.1029/1999PA900035, 1999. 
Bebout, G. E., Cooper, D. C., Bradley, A. D., and Sadofsky, S. J.: Nitrogen-isotope record of fluid-rock interactions in the Skiddaw aureole and granite, English Lake District, Am. Mineral., 84, 1495–1505, https://doi.org/10.2138/am-1999-1002, 1999. 
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Short summary
This study presents a global database of nitrogen isotope data from ancient ocean sediments, covering Earth's history from the present back to billions of years ago. The database includes over 70 000 nitrogen isotope records from 417 studies, along with essential geological context and related chemical data. This database will help reveal the mechanisms behind critical events like mass extinctions and major ocean changes, enhancing our understanding of Earth's long-term environmental processes.
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