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Paul Tomascak

headshot of Paul Tomascak

Professor, Geology and Geochemistry
Associate Dean of Liberal Arts and Sciences

Contact Information

601 Culkin Hall
[email protected]

Office hours

1:00 -2:00 pm Tuesdays in 372 Shineman Hall


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.


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