Robert A Creaser, PhD, FRSC

Professor, Faculty of Science - Earth & Atmospheric Sciences

Contact

Professor, Faculty of Science - Earth & Atmospheric Sciences
Email
robert.creaser@ualberta.ca
Phone
(780) 492-2942
Address
3-18A Earth Sciences Building
11223 Saskatchewan Drive NW
Edmonton AB
T6G 2E3

Overview

About

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


Research

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.

Courses

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 200 - Introductory Studies in Earth Science

Laboratory study of topics in introductory Earth Science. EAS 200 and EAS 201 are considered to be equivalent to EAS 100 for prerequisite purposes. Not available to students with credit in EAS 100, 101, EAS 210 or SCI 100. Prerequisite: EAS 201.


EAS 201 - Earth Science I

A non-laboratory 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 interactions with the Earth. Mineral and energy resources. This course may not be taken for credit if credit has been obtained in EAS 100 or 210. (Note: EAS 201 and EAS 200 are considered to be equivalent to EAS 100 for prerequisite purposes). [Faculty of Science]


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

Publications

Re-Os dating of pyrite confirms an early diagenetic onset and extended duration of mineralization in the Irish Zn-Pb orefield

Author(s): D Hnatyshin, RA Creaser, S Gleeson, JJ Wilkinson
Publication: Geology
Volume: 43
Page Numbers: 143-146
External Link: http://geology.gsapubs.org/content/43/2/143.abstract

Constraints on the genesis of gold mineralization at the Homestake Gold Deposit, Black Hills, South Dakota, from rhenium-osmium sulfide geochronology

Author(s): RM Morelli, CC Bell, RA Creaser, A Simonetti
Publication: Mineralium Deposita
Volume: 45
Page Numbers: 461-480
External Link: http://link.springer.com/article/10.1007/s00126-010-0284-9

Cretaceous Oceanic Anoxic Event 2 triggered by massive magmatic event

Author(s): SC Turgeon, RA Creaser
Publication: Nature
Volume: 454
Page Numbers: 323-326
External Link: http://www.nature.com/nature/journal/v454/n7202/full/nature07076.html

Transient episodes of mild environmental oxygenation and oxidative continental weathering during the late Archean

Author(s): B Kendall, RA Creaser, CT Reinhard, TW Lyons, AD Anbar
Publication: Science Advances
Volume: 1
Issue: 10
Page Numbers: e1500777
External Link: http://advances.sciencemag.org/content/1/10/e1500777

Direct radiometric dating of hydrocarbon deposits using rhenium-osmium isotopes

Author(s): D Selby, RA Creaser
Publication: Science
Volume: 308
Page Numbers: 1293-1295
External Link: http://science.sciencemag.org/content/308/5726/1293