Nevin Kozik

nevin.kozik@ou.edu
Sarkeys Energy Center, 810F

About

My research focuses on the linkages between chemical oceanography, nutrient availability, climate perturbations and changes in marine oxygen availability to understand how these changes may have influenced species diversity throughout geologic history. To do this, I employ trace element biogeochemistry as well as isotope geochemistry to disentangle the driving mechanisms across climatic and biotic events that shaped Earth’s turbulent biotic record such as mass extinctions and radiation events. By looking at the mechanisms and feedbacks associated with major changes within the fossil record, we can gain a better understanding of the same processes that might respond the current or future climate perturbations.

Education

Ph.D., Florida State University
M.S., Florida State University
B.S., Geology - University of California, Riverside

Research Interests

Paleoceanography
Stratigraphy
Trace Metal Redox Geochemistry
Stable Isotope Geochemistry

Courses Taught

Starting Fall 2026

Selected Publications

Adiatma, Y.D., Saltzman, M.R., Young, S.A., Griffith, E.M., Kozik, N.P., Edwards, C.T., Leslie, S.A., and Bancroft, A.M., 2019, Did early land plants produce a stepwise change in atmospheric oxygen during the Late Ordovician (Sandbian ~458 Ma)? Palaeogeography, Palaeoclimatology, Palaeoecology, v. 534, doi:10.1016/j.palaeo.2019.109341.
Allman, L.J., Bowman, C.N., Frýda, J., Kozik, N.P., Owens, J.D., and Young, S.A., 2024, Constraining reducing conditions in the Prague Basin during the late Silurian Lau/Kozlowskii extinction event: Journal of the Geological Society, v. 181, doi:10.1144/jgs2023-108.
Bowman, C.N., Lindskog, A., Kozik, N.P., Richbourg, C.G., Owens, J.D., and Young, S.A., 2020, Integrated sedimentary, biotic, and paleoredox dynamics from multiple localities in southern Laurentia during the late Silurian (Ludfordian) extinction event: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 553, p. 109799, doi:10.1016/j.palaeo.2020.109799.
Kozik, N.P., Young, S.A., Newby, S.M., Liu, M., Chen, D., Hammarlund, E.U., Bond, D.P.G., Them, T.R., and Owens, J.D., 2022, Rapid marine oxygen variability: Driver of the Late Ordovician mass extinction: Science Advances, v. 8, p. 1–9, doi:10.1126/sciadv.abn8345.
Lindskog, A., Young, S.A., Bowman, C.N., Kozik, N.P., Newby, S.M., Eriksson, M.E., Pettersson, J., Molin, E., and Owens, J.D., 2023, Oxygenation of the Baltoscandian shelf linked to Ordovician biodiversification: Nature Geoscience, v. 16, p. 1047–1053, doi:10.1038/s41561-023-01287-z.
Young, S.A., Benayoun, E., Kozik, N.P., Hints, O., Martma, T., Bergström, S.M., and Owens, J.D., 2020, Marine redox variability from Baltica during extinction events in the latest Ordovician–early Silurian: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 554, p. 109792, doi:10.1016/j.palaeo.2020.109792.

Nevin Kozik

Nevin Kozik

Assistant Professor