Publications of Alfredo Martinez-Garcia

Umbo, S., Box, M., Intveld, A., Longman, J., Modestou, S., Carolin, S. A., James, D. H., Martinez-Garcia, A., Lope, C. P., Brenner, M., Hodell, D. and Breitenbach, S. F. M.: Clumped Isotope Temperature Reconstruction Using Stalagmite Drip Cups, Rapid Communications in Mass Spectrometry, 40(8), doi:10.1002/rcm.70027, 2026.

Brömme, S., Oelze, V. M., Martinez-Garcia, A., Leichliter, J. N., Haug, G. H., Vonhof, H. B., Stewart, F. A., Piel, A. K. and Lüdecke, T.: Multi-isotope analysis reconstructs termite feeding in chimpanzees, Scientific Reports, 16(1), doi:10.1038/s41598-026-45049-4, 2026.

Ryu, Y., Marconi, D., Smart, S., Fawcett, S., Johnson, R., Zhang, R., Knapp, A., Oleynik, S., Martinez-Garcia, A., Haug, G. and Sigman, D.: The isotopic composition of solid-phase extracted dissolved organic nitrogen in seawater, Marine Chemistry, 276, doi:10.1016/j.marchem.2026.104646, 2026.

Jung, J., Wald, T., Foreman, A., Bieler, A., Janussen, D., Moretti, S., Duprey, N., Marconi, D., Pérez-Medina, C., O'Dea, A., Schiebel, R., Halfar, J., Fernandez-Garcia, C., Berger, M., Donovan, M., Frazier, A., Cramer, K., Haug, G. H., Sigman , D. and Martinez-Garcia, A.: Crustose Coralline Algae as a Proxy for Marine Nitrogen Cycling and Coral Trophic Strategies, Communications Earth & Environment, doi:10.1038/s43247-026-03459-2, 2026.

Schmitt, C., Vasiliev, I., Martinez-Garcia, A., Meijer, N. and Mulch, A.: Increased hydroclimate variability in midlatitude Europe during the middle Eocene greenhouse, Global and Planetary Change, 259, doi:10.1016/j.gloplacha.2026.105357, 2026.

Ryu, Y., Maloney, A. E., Luu, V. H., Guo, L., Oleynik, S., Fawcett, S. E., Higgins, M. B., Van Oostende, N., Ward, B. B., Cook, C. C. Z., Cohen, N. R., Ewton, E., Menden-Deuer, S., Granger, J., Marchetti, A., Aardema, H. M., Slagter, H. A., Schiebel, R., Martinez-Garcia, A., Haug, G. H. and Sigman, D. M.: Prokaryotic bias in surface ocean particles, Proceedings of the National Academy of Sciences of the United States of America, 123(14), doi:10.1073/pnas.1515818112, 2026.

Gatti, L., Lugli, F., Rubach, F., Leichliter, J., Sciutto, G., Prati, S., Tutken, T. and Martinez-Garcia, A.: Deep-time preservation of amino acids in mammalian fossil tooth enamel, Communications Biology, 9(1), doi:10.1038/s42003-026-09716-6, 2026.

Fripiat, F., Sigman, D. M., Ai, X. E., Dumoulin, C., Moretti, S., Studer, A. S., Diekmann, B., Esper, O., Frederichs, T., Lamy, F., Liu, L., Pattyn, F., Schmitt, M., Tiedemann, R., Haug, G. H. and Martinez-Garcia, A.: Deglacial stratification of the polar Southern Ocean, Proceedings of the National Academy of Sciences of the United States of America, 123(6), doi:10.1073/pnas.250207612, 2026.

Vink, M., Leichliter, J. N., Green, D. R., Brömme, S., Tacail, T., Kindler, L., Roebroeks, W., Gaudzinski-Windheuser, S., Haug, G. H., Vonhof, H. B., Martinez-Garcia, A., Tütken, T. and Lüdecke, T.: Eemian climate seasonality reconstructed from intra-tooth oxygen, carbon, and nitrogen stable isotopes in equid enamel from Neumark-Nord 2, Germany, Quaternary Science Reviews, 373, doi:10.1016/j.quascirev.2025.109724, 2026.

Hess, A. V., Auderset, A., Rosenthal, Y., Sigman, D. M. and Martinez-Garcia, A.: Contrasting evolution of the Arabian Sea and Pacific Ocean oxygen minimum zones during the Miocene, Communications Earth & Environment, 7, doi:10.1038/s43247-025-03112-4, 2026.

Stoll, H. M., Bolton, C., Jaggi, M., Martinez-Garcia, A. and Bernasconi, S. M.: Divergent estimates of Miocene to Pleistocene upper ocean temperatures in the South Atlantic Ocean from alkenone and coccolith clumped isotope proxies, Climate of the Past, 21(11), 2189–2203, doi:10.5194/cp-21-2189-2025, 2025.

Jung, J., Duprey, N. N., Foreman, A. D., D’Olivo, J. P., Pellio, C., Ryu, Y., Murphy, E. L., Romshoo, B., Kersting, D. K., Cardoso, G. O., Wald, T., Fripiat, F., Jimenez, C., Gischler, E., Montagna, P., Alonso-Hernández, C., Gomez-Batista, M., Treinen-Crespo, C., Carriquiry, J., Ong, M. R., Goodkin, N. F., Guppy, R., Aardema, H., Slagter, H., Heins, L., Hrabe de Angelis, I., Bieler, A. L., Yehudai, M., Noël, T. P., James, K., Scholz, D., Hu, C., Barnes, B. B., Pozzer, A., Pöhlker, C., Lelieveld, J., Pöschl, U., Vonhof, H., Haug, G. H., Schiebel, R., Sigman , D. M. and Martinez-Garcia, A.: Equatorial upwelling of phosphorus drives Atlantic N₂ fixation and Sargassum blooms, Nature Geoscience, 18, doi:10.1038/s41561-025-01685-5, 2025.

Bourgon, N., Lüdecke, T., Leichliter, J. N., Bauman chris, C., Brömme, S., Vink, M., Bacon, A.-M., McCormack, J., Nguyen, T. M. H., Nguyen, A. T., Antoine, P.-O., Ponche, J.-L., Duringer, P., Demeter, F., Boualaphane, S., Luangkhoth, T., Dufour, E., Hublin, J.-J., Jaouen, K., Tütken, T., Martinez-Garcia, A. and Roberts, P.: Faunal persistence and ecological flexibility in Pleistocene Southeast Asia revealed through multi-isotope analysis, Science Advances, 11(42), doi:10.1126/sciadv.adu3642, 2025.

Rafter , P. A., Farmer, J. R., Martinez-Garcia, A., Ravelo, A. C., Karnauskas, K. B., Batista, F. C., Bernasconi, S. M., Ren, H., Auderset, A., Haug, G. H. and Sigman, D. M.: Persistent eastern equatorial Pacific Ocean upwelling since the warm Pliocene, Science, 390(6768), doi:10.1126/science.ads8720, 2025.

Danielisová, A., Maiorano, M. P., Šneberger, J., Ackerman, L., Daněček, D., Garba, R., Martinez-Garcia, A. and Lüdecke, T.: The first collective Neolithic megalithic tomb in Oman, Antiquity, 99, doi:10.15184/aqy.2025.10146 , 2025.

Felis, T., Pfeiffer, M., Hargreaves, J., Anagnostou, E., Bejarano, S., Brachert, T., D'Olivo, J. P., Dolman, A., Fietzke, J., Frank, M., Frank, N., Frick, D., Garbe-Schoenberg, D., Gischler, E., Hathorne, E., Henehan, M., Knebel, O., Martinez-Garcia, A., Merkel, U., Mertz, R., Mudelsee, M., Rovere, A., Voolstra, C., Wall, M., Warken, S., Wild, C., Ziegler, M., Boyden, P., Camelia, H., Diers, D., Duprey, N., Greve, S., Ito, S. (S., Lehnhoff, L., Li, D., Meiritz, L., Million, W., Mono, P., Schlotheuber, M., Watanabe, T. (K. and Yu, Y.: Tropical climate variability and coral reefs-a past to future perspective on current rates of change at ultra-high resolution, Bulletin of Marine Science, 101(1), doi:10.5343/bms.2024.0122, 2025.

Wald, T., Fripiat, F., Foreman, A. D., Ryu, Y., Marconi, D., Tanhua, T., Sisma-Ventura, G., Sigman, D. M., Haug, G. H. and Martinez-Garcia, A.: Origins of the Nitrate ¹⁵N Depletion in the Mediterranean Sea, Global Biogeochemical Cycles, 39(6), doi:10.1029/2023GB008035, 2025.

Marconi, D., Sigman, D. M., Casciotti, K. L., Lawrence, R. M., Wang, W., Oleynik, S. and Martinez-Garcia, A.: Distinguishing the Isotopic Signals of Nitrate Assimilation and Denitrification Along the GEOTRACES GP15 Pacific Meridional Transect, Journal of Geophysical Research: Oceans, 130(6), doi:10.1029/2024JC022084, 2025.

Auderset, A., Smart, S. M., Ryu, Y., Marconi, D., Ren, H. A., Heins, L., Vonhof, H., Schiebel, R., Repschläger, J., Sigman , D. M., Haug, G. H. and Martinez-Garcia, A.: Effects of photosymbiosis and related processes on planktic foraminifera-bound nitrogen isotopes in South Atlantic sediments, Biogeosciences, 22(7), 1887–1905, doi:10.5194/bg-22-1887-2025, 2025.

Farmer, J. R., Martinez-Garcia, A., Sentman, L. T., Schiebel, R., Arns, A., Yehudai, M., Tiedemann, R., Sigman, D. M. and Haug, G. H.: Early Pliocene Shoaling of the Central American Seaway Reconstructed From Foraminifera-Bound Nitrogen and Oxygen Isotopes, Paleoceanography and paleoclimatology, 40(4), doi:10.1029/2024PA005043, 2025.