Robert A Creaser, PhD, FRSC

Professor, Faculty of Science - Earth & Atmospheric Sciences Admin


Professor, Faculty of Science - Earth & Atmospheric Sciences Admin
(780) 492-2942
3-18A Earth Sciences Building
11223 Saskatchewan Drive NW
Edmonton AB
T6G 2E3



Canada Research Chair Tier I in Isotope Geochemistry 2009-2023
Fellow Royal Society of Canada 2008
Distinguished Member Geological Association of Canada 2007
Fellow Society of Economic Geologists 2007
McCalla Professor 2003
Past Presidents Medal Geological Association of Canada 1998
University of Alberta Faculty of Science Research Award 1997


Robert Creaser specializes in radiogenic isotope geochemistry using the Re-Os, Rb-Sr, Sm-Nd, Pb-Pb isotope systems. A wide variety of geochemical phenomena and processes, mainly involving the geochemistry, origin and evolution of Earth's crust, are investigated using these isotope systems. Currently, research projects focus on the use of Re-Os isotopes for geochronology, such as: Re-Os geochronology and systematics of organic-rich sediments (black shales), application of Re-Os isotopes for direct dating of hydrothermal sulfide mineralization, Re-Os geochronology of fluid flow in sedimentary basins. Research opportunity:

  • Geochronology of fluid flow in sedimentary basins using Re-Os isotopes.
  • Re-Os geochronology of hydrothermal ore-forming systems using sulfide minerals.


EAS 100 - Planet Earth

Introduction to the origin and evolution of the Earth and the solar system. Introduction to plate tectonics and the rock cycle. Simple energy balances and interactions between radiation and the atmosphere, land, oceans, ice masses, and the global hydrological cycle. Evolution of life, biogeography, and global climate in the context of geologic time. The carbon cycle. Human interaction with the Earth. Mineral and energy resources. This course may not be taken for credit if credit has been obtained in EAS 200 or 201.

EAS 539 - Isotope Geology: Radioactive Systems

Theory and systematics of radioactive decay, geochronology and isotopic tracing U-Pb, Rb-Sr, Sm-Nd, Re-Os and other radioisotope systems. Applications of natural radioactive isotope variation to a variety of problems spanning low and high temperature geologic processes. [Faculty of Science]

Browse more courses taught by Robert A Creaser

Featured Publications

J Toma, RA Creaser, C Card, R Stern, T Chacko and M Steele-MacInnis

Geochim Cosmochim Acta (2022), 323, 164-182. . 2022 February; 323 (164-182) 10.1016/j.gca.2022.02.012

D Hnatyshin, RA Creaser, S Meffre, RA Stern, JJ Wilkinson and EC Turner

Chemical Geology. 2019 November; 533 10.1016/j.chemgeo.2019.119427

RM Morelli, CC Bell, RA Creaser, A Simonetti

Mineralium Deposita. 45

SC Turgeon, RA Creaser

Nature. 454

D Selby, RA Creaser

Science. 308