Theodore Them

Postdoctoral Associate

Geochemistry, Scientific Staff


Contact Information

Phone (850) 644-1116
Fax (850) 644-0827
Address 1800 E. Paul Dirac Dr.
Tallahassee , FL 32310-3706
Building NHMFL FSU

Educational Background

  • MS, Texas A&M University, 2012
  • PhD, Virginia Tech, 2016

Research Interests

  • Sedimentary geochemistry, paleoceanography, paleoclimatology, extinction events

Publications and Scientific Activities


    1. Terrestrial sources as the primary delivery mechanism of mercury to the oceans across the Toarcian Oceanic Anoxic Event (Early Jurassic) Them, T.; Jagoe, C.H.; Carothers, A.H.; Gill, B.C.; Grasby, S.E.; Gröcke, D.R.; Yin, R.; Owens, J.D. Earth Planet. Sci. Lett., 507, 1, 62-72 (2019)


    1. Thallium isotopes reveal protracted anoxia during the Toarcian (Early Jurassic) associated with volcanism, carbon burial, and mass extinction Them, T.; Gill, B.C.; Caruthers, A.H.; Gerhardt, A.M.; Gröcke, D.R.; Marroqín, S.M.; Lyons, T.W.; Nielsen, S.G.; Trabucho-Alexandre, J.P.; Owens, J.D. PNAS, 115, 26, 6596-6601 (2018)


    1. Evidence for rapid weathering response to climatic warming during the Toarcian Oceanic Anoxic Event Them, T.R. II.; Gill, B.C.; Selby, D.; Gröcke, D.R.; Friedman, R. and Owens, J.D. Nature Scientific Reports, 7, 5003 (2017)