Geosciences Joint Faculty, Emeritus Faculty, and Affiliates

New Faculty

Lauren Harrison, PhD

Department affiliate and Assistant Professor (arriving Fall 2023)

I am a geologist and geochemist whose research focuses on the application of high-precision measurements of radiogenic, stable, or cosmogenic isotopes and elemental concentrations to understanding mantle geochemistry, volcanic processes, and the timing of hazardous volcanic events such as hydrothermal explosions in Yellowstone National Park.

Hou, Pengfei
Pengfei Hou, PhD

Instructor, Sedimentology Fall 2022

Pengfei is a research scientist with the SAnD&CoRE program at the Colorado School of Mines, Golden, Colorado. He has worked as a deepwater stratigrapher, paleontology instructor and petroleum geologist.

Joint Faculty

Bangerth, Wolfgang Photo

Wolfgang Bangerth

Professor, Dept of Mathematics

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

Numerical analysis, scientific computing, mathematical software


Svetoslav Georgiev

Assistant Professor, King Fahd UPM

Airie Program, Research Scholar, AIRIE

Lee MacDonald

Lee MacDonald

Professor Emeritus, Ecosystem Science and Sustainability

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

Emeritus Faculty

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


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

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.






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

Joel Cubley

Instructor and Geological Technology Program Coordinator, Yukon College, Canada. Sponsor: Rick Aster (8/22)

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

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: Holly Stein, AIRIE Program (3/25)

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

Vineet Goswami

Physical Research Laboratory, Ahmedabad, India.  Sponsor: Holly Stein, AIRIE Program (10/22)

PhD, Earth Sciences Physical Research Laboratory, Ahmedabad, India with Mohanlal Sukhadia University, Udaipur, India

Ethan Marshal Greene

Director, Colorado Avalanche Information Center.  Sponsor: Steven Fassnacht (8/23)

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

James Hagadorn

Tim and Kathryn Ryan Curator of Geology, Dept of Earth Sciences, Denver Museum of Nature and Science.  (5/22)

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

Øyvind Hammer

Associate Professor, Natural History Museum, University of Oslo, Norway.  Sponsor: Holly Stein, AIRIE Program (3/24)

PhD Paleontology, University of Oslo, Norway

Dario Harazim

Technical Geologist, ETC Seal and Trap Team, Chevron Energy Technology Company. Sponsor: Sven Egenhoff (12/22)

PhD Geology, Memorial University of Newfoundland, St. John’s, NL Canada

Lauren Harrision

USGS, California Volcanto Observatory. CSU Department of Geosciences faculty member (start 8/23) Sponsor: Rick Aster (5/22)

PhD, University of British Columbia, specializing in geochemistry, geology, volcanology, geochronology and petrology. BSc, University of Wyoming

Ed Harvey

Supervisory hydrologist and chief of the U.S National Park Service Water Resources Division. Sponsor: Bill Sanford (1/22)

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

Christopher Hiemstra

Research Physical Scientist, US Army Corps of Engineers, Cold Regions Research and Engineering Laboratory (CRREL).  Sponsor: Steven Fassnacht (1/24)

PhD and MS, University of Wyoming-Laramie; BS, Creighton University-Omaha

Kenneth S. Hughes

Dept of Geology, University of Puerto Rico.  Sponsor: Sean Gallen (10/22)

PhD, North Carolina State University

Antun Husinec

Associate Professor, Department of Geology, St. Lawrence University, Canton, NY. Sponsor: Sven Egenhoff (12/23)

PhD, University of Zagreb (Croatia); Fulbright Postdoc, Virginia Tech

Patrick Keys

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

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

Chris Lidstone

Founder and Principal, Wenck Associates, Inc. focused on geology and water resource consulting. Sponsor: Rick Aster (11/21)

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.  (5/22)

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: Holly Stein, AIRIE Program (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  (10/22)

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

Sandra Ryan-Burkett

USFS Rocky Mtn, Research Station Research Geomorphologist.  Sponsor: Sara Rathburn (12/22)

PhD, University of Colorado-Boulder; MA, Oregon State University-Corvallis; BA, State University of New York-Plattsburgh

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 (5/22)

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

Graham Sexstone

USGS, Denver. Sponsor: Steven Fassnacht (10/22)

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

Gyana Tripathy

Sponsor: Holly Stein (12/22)

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