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Faculty Profiles

Faculty Profile Variant

Andrew Luhmann, Ph.D.

Assistant Professor of Geology

On Faculty since 2018

After completing graduate school, Dr. Luhmann conducted research as a Postdoctoral Researcher/Research Associate for four years in the Department of Earth Sciences at the University of Minnesota in Minneapolis. He spent the following three years as an Assistant Professor of Hydrology in the Department of Earth and Environmental Science at the New Mexico Institute of Mining and Technology in Socorro, NM. Dr. Luhmann’s research generally involves the fields of hydrogeology and geochemistry, and his current research projects funded by the National Science Foundation and the Department of Energy explore geophysical responses to recharge events in karst aquifers and chemomechanical processes in geologic carbon sequestration environments, respectively. He currently serves as an Associate Editor of Hydrogeology Journal and the Primary Representative of the Joint Technical Program Committee for the Geological Society of America Karst Division.

University of Minnesota, Twin Cities
Postdoctoral, Postdoctoral Research Associate, 2014

University of Minnesota, Twin Cities
Ph.D., Geology, 2011

Wheaton College
B.S., Geology, 2006

  • Geologic Carbon Sequestration
  • Aqueous Geochemistry
  • Karst Hydrogeology
  • Flow and Transport
  • Fluid-Rock Interaction
  • The Geological Society of America : Member

Dr. Luhmann’s previous research focused on using water temperature as a tracer in karst aquifers to identify aquifer and flow path information and quantifying physical and chemical processes that arise during fluid-rock interaction in geologic carbon sequestration and serpentinization settings. Current projects consider a range of topics that include using geophysical signals generated from within karst aquifers during recharge events to characterize them and to monitor for flow, exploring the impact of variable conduit networks on solute transport in karst aquifers, identifying mechanical effects that arise due to fluid-rock interactions in geological carbon sequestration environments, and assessing the role of diagenesis during multiphase fluid flow in the subsurface.

Serpentinization as a reactive transport process: The brucite silicification reaction, Earth and Planetary Science Letters
Benjamin M. Tutolo, Andrew J. Luhmann, Nicholas J. Tosca, William E. Seyfried Jr.
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Methane clumped isotopes: Progress and potential for a new isotopic tracer, Organic Geochemistry
Peter M.J. Douglas, Daniel A. Stolper, John M. Eiler, Alex L. Sessions, Michael Lawson, Yanhua Shuai, Andrew Bishop, Olaf G. Podlaha, Alexandre A. Ferreira, Eugenio V. Santos Netoh, Martin Niemann, Arne S. Steen, Ling Huang, Laura Chimiak, David L. Valentine, Jens Fiebig, Andrew J. Luhmann, William E. Seyfried Jr., Giuseppe Etiope, Martin Schoell, William P. Inskeep, James J. Moran, Nami Kitchen
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Chemical and physical changes during seawater flow through intact dunite cores: An experimental study at 150–200 °C, Geochimica et Cosmochimica Acta
Andrew J.Luhmann, Benjamin M. Tutolo, Brian C. Bagley, David F.R. Mildner, Peter P. Scheuermann, Joshua M. Feinberg, Konstantin Ignatyev, William E. Seyfried Jr.
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Permeability, porosity, and mineral surface area changes in basalt cores induced by reactive transport of CO2-rich brine, Water Resources Research 53
Luhmann, A.J., B.M. Tutolo, B.C. Bagley, D.F.R. Mildner, W.E. Seyfried, Jr., and M.O. Saar, 2017

Whole rock basalt alteration from CO2-rich brine during flow-through experiments at 150ºC and 150 bar., Chemical Geology 453
Luhmann, A.J., B.M. Tutolo, C. Tan, B.M. Moskowitz, M.O. Saar, and W.E. Seyfried, Jr.

Fe isotope fractionation between chalcopyrite and dissolved Fe during hydrothermal recrystallization: An experimental study at 350ºC and 500 bars., Geochimica et Cosmochimica Acta 200
Syverson, D.D., A.J. Luhmann, C. Tan, D.M. Borrok, K. Ding, and W.E. Seyfried, Jr.

CO2 sequestration in feldspar-rich sandstone: Coupled evolution of fluid chemistry, mineral reaction rates, and hydrogeochemical properties., Geochimica et Cosmochimica Acta 160
Tutolo, B.M., A.J. Luhmann, X.-Z. Kong, M.O. Saar, and W.E. Seyfried, Jr.

Thermal damping and retardation in karst conduits., Hydrology and Earth System Sciences 19
Luhmann, A.J., M.D. Covington, J.M. Myre, M. Perne, S.W. Jones, E.C. Alexander, Jr., and M.O. Saar, 2015

Experimental observation of permeability changes in dolomite at CO2 sequestration conditions., Chemical Geology 380
Luhmann, A.J., X.-Z. Kong, B.M. Tutolo, N. Garapati, B.C. Bagley, M.O. Saar, and W.E. Seyfried, Jr., 2014

Experimental observation of permeability changes in dolomite at CO2 sequestration conditions., Environmental Science & Technology, 48
Tutolo, B.M., A.J. Luhmann, X.-Z. Kong, M.O. Saar, and W.E. Seyfried, Jr., 2014

Permeability reduction produced by grain reorganization and accumulation of exsolved CO2 during geologic carbon sequestration: A new CO2 trapping mechanism., Environmental Science & Technology 47
Luhmann, A.J., X.-Z. Kong, B.M. Tutolo, K. Ding, M.O. Saar, and W.E. Seyfried, Jr., 2013

Comparing conservative and nonconservative tracers in karst and using them to estimate flow path geometry., Journal of Hydrology
Luhmann, A.J., M.D. Covington, S.C. Alexander, S.Y. Chai, B.F. Schwartz, J.T. Groten, and E.C. Alexander, Jr., 2012

Process length scales and longitudinal damping in karst aquifers., Journal of Geophysical Research-Earth Surface 117
Covington, M.D., A.J. Luhmann, C.M. Wicks, and M.O. Saar, 2012

Mechanisms of heat exchange between water and rock in karst conduits., Water Resources Research 47
Covington, M.D., A.J. Luhmann, F. Gabrovšek, M.O. Saar, and C.M. Wicks, 2011

Classification of thermal patterns at karst springs and cave streams., Ground Water 49
Luhmann, A.J., M.D. Covington, A.J. Peters, S.C. Alexander, C.T. Anger, J.A. Green, A.C. Runkel, and E.C. Alexander, Jr., 2011