Geosciences Joint Faculty, Emeritus Faculty, and Affiliates

Joint Faculty

Bangerth, Wolfgang Photo

Wolfgang Bangerth

Professor, Dept of Mathematics

Phone: (970) 491-8631, Office: 214 Weber

Numerical analysis, scientific computing, mathematical software

Lee MacDonald

Lee MacDonald

Professor Emeritus, Ecosystem Science and Sustainability

Phone: (970) 491-6109, office: Nesb B221

Emeriti Faculty


Eric Erslev

Professor Emeritus

I am a structural geologist with interests in Laramide tectonics, fault-related folding, fabric analysis and Rocky Mountain geology in general.



Profile Link

Frank G. Etheridge, Emeritus Faculty

Frank Ethridge

Professor Emeritus

Frank joined the Colorado State University faculty in 1975 and continues to enrich the geosciences department as an active professor emeritus.

Phone: (970) 226-0350

Profile Link


Judy Hannah

Professor Emeritus


Malcolm McCallum

Professor Emeritus

Sally Sutton

Sally J. Sutton

Professor Emeritus

I am a geologist with research interests that include Sedimentary petrology and geochemistry, shale geology, fluid/rock interaction, chemical weathering, clastic diagenesis.



Tommy Thompson

Professor Emeritus

My interests are focused on exploration and production of gold, silver, copper, lead, &/or zinc ore deposits after 47.5 years as a professor of economic geology at four universities.






Patrick Ball

Verisk Analytics, Research Associate. Sponsor: Derek Schutt (9/25)

PhD, Earth Sciences, University of Cambridge; MS, Earth Sciences, University of Oxford

Kerstin Braun

Assistant Research Scientist, Institute of Human Origins, Arizona State University. Sponsor: Jeremy Caves Rugenstein (3/24)

PhD, Earth Sciences, Hebrew Universtiy of Jerusalem

Jonathan Caine

Structural Geologist, USGS, Denver CO. Sponsor: Dan McGrath (7/25)

PhD, Geology, University of Utah; MA, Geology, State University of New York (SUNY)

Joel Cubley

Instructor and Geological Technology Program Coordinator, Yukon College, Canada. Sponsor: Rick Aster (8/25)

PhD, University of Calgary

Sven Egenhoff

Professor and Director, Harold Hamm School of Geology and Geological Engineering, University of North Dakota. Sponsor: Rick Aster (1/25)

Howard Feldman

Stratigraphy, ExxonMobil (ret.).  Sponsor: Lisa Stright  (10/24)

Google Scholar page

PhD, Indiana University, Paleontology

Caitlyn Florentine

Research Physical Scientist, USGS Northern Rocky Mountain Science Center, Glaciers and Climate Project Sponsor: Dan McGrath  (10/25)

PhD, University of Montana, Geosciences

Jonathan Friedman

Hydrologist, U.S. Geological Survey Fort Collins Science Center.  Sponsor: Sara Rathburn  (7/24)

PhD, University of Colorado-Boulder; MS, University of Wisconsin-Madison, BS, Massachusetts Institute of Technology

Svetoslav Georgiev

AIRIE Program, Research Associate IV.  Sponsor: Judy Hannah (3/25)

PhD Earth Sciences, Institute of Isotope Geology and Mineral Resources, ETH, Zürich, Switzerland

James Hagadorn

Tim and Kathryn Ryan Curator of Geology, Dept of Earth Sciences, Denver Museum of Nature and Science.  (5/25)

PhD and MS, Colorado State University; BS, University of Utah

Øyvind Hammer

Associate Professor, Natural History Museum, University of Oslo, Norway.  Sponsor: Judy Hannah (3/24)

PhD Paleontology, University of Oslo, Norway

Ed Harvey

Supervisory hydrologist and chief of the U.S National Park Service Water Resources Division. Sponsor: Bill Sanford (1/25)

PhD Hydrogeology, University of Waterloo, Waterloo, Ontario, Canada; MS Hydrogeochemistry, Purdue University, West Lafayette, Indiana; BS Geology & Geophysics, Olivet Nazarene University, Bourbonnais, Illinois.

Kenneth S. Hughes

Dept of Geology, University of Puerto Rico.  Sponsor: Sean Gallen (10/25)

PhD, North Carolina State University

Patrick Keys

Lead Scientist, School of Global Environmental Sustainability, CSU. Sponsor: Jeremy Rugenstein (11/24)

PhD, sustainable Science, Stockholm Resilience Centre, Stockholm University, Sweden

Tyler Kukla

NOAA Climate and Global Change Postdoctoral Fellow, Department of Atmospheric Sciences, University of Washington College of Earth, Ocean, and Atmospheric Sciences, Oregon State University. Sponsor: Jeremy Rugenstein (12/25)

PhD, Geological Sciences, Stanford University

Chris Lidstone

Founder and Principal, Wenck Associates, Inc. focused on geology and water resource consulting. Sponsor: Rick Aster (11/24)

M.S. Geomorphology, Colorado Sate University

John Lisle

USGS, St. Petersburg Costal & Marine Science Center. Sponsor: Sally Sutton (3/24)

PhD, University of South Florida

Hans Peter Marshall

Assoc. Professor, Boise State Univ., Director of CryoGARS. Sponsor: Dan McGrath (8/24)

PhD, Civil Engineering (Geotechnical) CU Boulder

Scott McCoy

Asst Profesor, Dept of Geological Sciences and Engineering, Univeristy of Nevada, Reno. Sponsor: Dan McGrath (5/25)

Ph.D., University of Colorado, Boulder, Geological Sciences

Samuel Mukasa

Senior Executive – Global Initiatives, Office of the Provost, Univ. Minnesota. Sponsor: Dennis Harry (11/24)

PhD Geochemestry, Univ of CA Santa Barbara

Snorre Olauseen

Professor of Arctic Petroleum Geology, University Centre in Svalbard. Sponsor: Judy Hannah (10/23)

PhD, University of Bergen; MS, University of Oslo

Frank J. Pazzaglia

Professor, Dept of Earth and Environmental Sciences, Lehigh University. Sponsor: Sean Gallen  (10/25)

Ph.D. Geosciences, Pennsylvania State University

Robert Porritt

Geophysicist, University of Texas, Institute for Geophysics.  Sponsor: Derek Schutt & Rick Aster (2/24)

Phd Earth and Planetary Science, University of California, Berkeley

Kaleb Scarberry

Montana Bureau of Mines and Geology. Sponsor: John Ridley (9/24)

PhD Oregon State University, MS Idaho State Univeristy

Dan Scott

Watershed Science and Engineering.  Sponsor: Ellen Wohl (9/24)

PhD, Geosciences Colorado State University

Joe Sertich

Curator of Vertebrate Paleontology, Department of Earth Sciences, Denver Museum of Nature and Science.  Sponsor: Sara Rathburn (5/25)

PhD and MS, Stony Brook University; MS, University of Utah; BS, Colorado State University

Roger Steininger

CGO and Director, Nulegacy Cold Corp. Sponsor: Rick Aster (11/24)

PhD, Geology, Colorado State University

Robert Stollar

Science and Research Liaison, Regenesis Management Group; CSU Geosciences Advisory Council.
Sponsor: Rick Aster (6/24)

MS Geology, Colorado State University

Edward Warner

Geologist and Philanthropist; CSU Geosciences Advisory Council. Sponsor: Rick Aster (6/21)

Doctor of Humane Letters, Honoris Causa, Colorado State University; MS, UCLA; BS, Colorado State University

Thad Wasklewicz

Geomorphologist, Principle in charge of Western US Geohazards and Geomorphology – Stantec. Sponsor: Ellen Wohl (3/24)

PhD, Geography, Arizona State University