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Paul Tomascak

Professor, Department Chair, Associate Dean of Liberal Arts and Sciences


Ph.D., University of Maryland, 1995 
MS, University of Manitoba, 1991
BS, NM Tech, 1988


Origins of granitic rocks and pegmatites; geochemical proxy studies of closed-basin lake sediments; lithium isotope geochemistry.

Specialty areas:

  • elemental
  • isotopic geochemistry


  • Yu J, Elderfield, H, Jin Z, Tomascak PB, Rohling EJ (2014) Controls on Sr/Ca in benthic foraminifera and implications for seawater Sr/Ca during the late Pleistocene. Quaternary Sci. Rev. 98, 1-6.
  • Meredith KT, Moriguti T, Tomascak PB, Hollins S, and Nakamura E (2013) The lithium, boron and strontium isotopic systematics of groundwaters from an arid zone aquifer system: implications for recharge and weathering processes. Geochim. Cosmochim. Acta 112, 20-31.
  • Zimmerman SH, Hemming SR, Hemming NG, Tomascak PB, and Pearl C (2011) High-resolution chemostratigraphic record of late Pleistocene lake-level variability, Mono Lake, California. Geol. Soc. Amer. Bull. 123, 2320-2334.
  • Teng FZ, Rudnick RL, McDonough WF, Gao S, Tomascak PB, and Liu Y (2008) Lithium isotopic composition and concentration of the deep continental crust. Chem. Geol. 255, 47-59.
  • Bosch W, Hester J, MacEntee V, MacKenzie J, Morey TM, Nichols J, Pacitti P, Shaffer B, Tomascak PB, Weber S, and Young R (2008) Beyond lip-service: A operational definition of "learning-centered college." Innovative Higher Educ. 33, 83-98.
  • Tomascak PB, Langmuir CH, LeRoux P, and Shirey SB (2008) Lithium isotopes in global mid-ocean ridge basalts. Geochim. Cosmochim. Acta 72, 1626-1637.
  • Lev SM, Filer JK, Tomascak P (2008) Orogenesis vs. diagenesis: Can we use organic-rich shales to interpret the tectonic evolution of a depositional basin? Earth Sci. Rev. 86, 1-14.