Earth and Environmental Sciences Faculty

Xingchen (Tony) Wang

Assistant Professor


The Wang Stable Isotope Biogeochemistry Lab focuses on using stable isotopes to understand the biogeochemical cycles (with a focus on N, but also including C, O, and S) in the modern and past oceans, their interactions with climate, and their implications for Earth’s habitability and the evolution of life.  


  • Heather Donnelly:
  • Tianshu Kong:
  • Kameko Landry:
  • Fenyao Li:

Selected recent publications:

Li, G. K., W. W. Fischer, M. P. Lamb, A. J. West, T. Zhang, V. Galy, X. T. Wang, S. Li, H. Qiu, G. Li., L. Zhao, J. Chen, J. Ji, Coal fly ash is a major carbon flux in the Chang Jiang (Yangtze River) basin. Proceedings of the National Academy of Sciences (2021).

Phillips, A. A., D. R. Speth, L. G. Miller, X. T. Wang, F. Wu, P. M. Medeiros, D. R. Monteverde, M. R. Osburn, W. M. Berelson, H. L. Betts, R. S. Wijker, S. W. Mullin, H. A. Johnson, V. J. Orphan, W. F. Fischer, A. L. Sessions, Microbial succession and dynamics in meromictic Mono Lake, California. Geobiology (2021).

Sigman, D. M., F. Fripiat, A. S. Studer, P. C. Kemeny, A. Martínez-García, M. P. Hain, X. Ai, X. T. Wang, H. Ren, G. H. Haug, The Southern Ocean during the ice ages: A review of the Antarctic surface isolation hypothesis, with comparison to the North Pacific. Quaternary Science Reviews (2021).

Zhang, R, X. T. Wang, H. Ren, J. Huang, M. Chen, D. M. Sigman, Dissolved organic nitrogen cycling in the South China Sea from an isotopic perspective. Global Biogeochemical Cycles (2020).

Li, T., L. F. Robinson, T. Chen, X. T. Wang, A. Burke, J. W. B. Rae, A. Pegrum-Haram, T. D. J. Knowles, G. Li, J. Chen, H. C. Ng, M. Prokopenko, G. Rowland, A. Samperiz, J. Stewart, J. Southon, P. Spooner, Rapid shifts in circulation and biogeochemistry of the Southern Ocean during deglacial carbon cycle events. Science Advances (2020).

Neubauer, C., A. Cremiere, X. T. Wang, N. Thiagarajan, A. L. Sessions, J. F. Adkins, N. F. Dalleska, A. V. Turchyn, J. A. Clegg, A. Moradian, M. J. Sweredoski, S. D. Garbis, J. M. Eiler, Stable Isotope Analysis of Intact Oxyanions Using Electrospray Quadrupole-Orbitrap Mass Spectrometry. Analytical Chemistry (2020).

Kast, E. R., D. A. Stolper, A. Auderset, J. A. Higgins, H. Ren, X. T. Wang, A. Martinez-Garcia, G. H. Haug, D. M. Sigman, Nitrogen isotope evidence for expanded ocean suboxia in the early Cenozoic. Science (2019).

Wang, X. T., A. L. Cohen, V. Luu, H. Ren, Z. Su, G. H. Haug, D. M. Sigman, Natural forcing of the North Atlantic nitrogen cycle in the Anthropocene. Proceedings of the National Academy of Sciences (2018).

Wang, X. T., D. M. Sigman, M. G. Prokopenko, J. F. Adkins, L. F. Robinson, S. K. Hines, J. Chai, A. S. Studer, A. Martinez-Garcia, T. Chen, G. H. Haug, Deep-sea coral evidence for lower Southern Ocean surface nitrate concentrations during the last ice age. Proceedings of the National Academy of Sciences (2017).

Ren, H., Y. Chen, X. T. Wang, G. T. F. Wong, A. L. Cohen, T. M. DeCarlo, M. A. Weigand, H. S. Meng, D. M. Sigman, 21st century rise in anthropogenic nitrogen deposition on a remote coral reef. Science (2017).