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Dive into the research topics where Daniel Mikhail Sigman is active. These topic labels come from the works of this person. Together they form a unique fingerprint.
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US GEOTRACES GP17-OCE: Nitrate isotopic signals of the Southern Ocean's circulation and biogeochemistry
NSF - National Science Foundation
10/1/21 → 9/30/24
Project: Research project
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Collaborative Research: US GEOTRACES PMT: Investigating geochemical tracers of Pacific nitrogen cycle and budget
NSF - National Science Foundation
1/1/18 → 12/31/22
Project: Research project
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Collaborative Research: US GEOTRACES GP17-ANT: Nitrogen isotope dynamics on the Amundsen Sea continental margin
NSF - National Science Foundation
3/1/23 → 2/28/26
Project: Research project
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A High-density, High-precision Zonal Section of Nitrate Isotopes Across the South Indian Ocean
NSF - National Science Foundation
10/1/19 → 9/30/22
Project: Research project
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Cenozoic megatooth sharks occupied extremely high trophic positions
Kast, E. R., Griffiths, M. L., Kim, S. L., Rao, Z. C., Shimada, K., Becker, M. A., Maisch, H. M., Eagle, R. A., Clarke, C. A., Neumann, A. N., Karnes, M. E., Lüdecke, T., Leichliter, J. N., Martínez-García, A., Akhtar, A. A., Wang, X. T., Haug, G. H. & Sigman, D. M., Jun 2022, In: Science Advances. 8, 25, eabl6529.Research output: Contribution to journal › Article › peer-review
4 Scopus citations -
Controls on the nitrogen isotopic composition of fish otolith organic matter: Lessons from a controlled diet switch experiment
Lueders-Dumont, J. A., Forden, A. G., Kast, E. R., Mohan, J. A., Walther, B. D., Sigman, D. M. & Ward, B. B., Jan 1 2022, In: Geochimica et Cosmochimica Acta. 316, p. 69-86 18 p.Research output: Contribution to journal › Article › peer-review
Open Access2 Scopus citations -
Enhanced ocean oxygenation during Cenozoic warm periods
Auderset, A., Moretti, S., Taphorn, B., Ebner, P. R., Kast, E., Wang, X. T., Schiebel, R., Sigman, D. M., Haug, G. H. & Martínez-García, A., Sep 1 2022, In: Nature. 609, 7925, p. 77-82 6 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Laboratory Assessment of the Impact of Chemical Oxidation, Mineral Dissolution, and Heating on the Nitrogen Isotopic Composition of Fossil-Bound Organic Matter
Martínez-García, A., Jung, J., Ai, X. E., Sigman, D. M., Auderset, A., Duprey, N. N., Foreman, A., Fripiat, F., Leichliter, J., Lüdecke, T., Moretti, S. & Wald, T., Aug 2022, In: Geochemistry, Geophysics, Geosystems. 23, 8, e2022GC010396.Research output: Contribution to journal › Article › peer-review
Open Access -
The Angola Gyre is a hotspot of dinitrogen fixation in the South Atlantic Ocean
Marshall, T., Granger, J., Casciotti, K. L., Dähnke, K., Emeis, K. C., Marconi, D., McIlvin, M. R., Noble, A. E., Saito, M. A., Sigman, D. M. & Fawcett, S. E., Dec 2022, In: Communications Earth and Environment. 3, 1, 151.Research output: Contribution to journal › Article › peer-review
Open Access