Contact Information

Office: Leon Johnson Hall #627A
Office Phone:   (406) 994-7251
Lab:   Leon Johnson Hall #627
Lab Phone:   (406) 994-7225

Office Hours:

Fall 2018: TR 2:00-3:00pm

Courses Taught:

ERTH 102 Glaciation of the Greater Yellowstone Region

ERTH 102 Glaciation of Montana

GEO 445    Glacial Geology 


B.A., Cambridge University, UK, 1992
M.S., University of Alberta, Canada, 1995
Ph.D., University of Alberta, Canada, 2001

Geomicrobiology Lab

Research Interests

Biogeochemistry, Geomicrobiology, Glaciated systems

Current Graduate Students

Jordan Allen

Rebecca Mitchell

August Steigmeyer

Lauren Thomas

Tim Campbell

Selected Publications

Macdonald, M.L., Wadham, J.L., Telling, J., Skidmore, M.L. (2018) Glacial erosion liberates lithologic energy sources for microbes and acidity for chemical weathering beneath glaciers and ice sheets. Frontiers in Earth Science, 6, 212, doi: 10.3389/feart.2018.00212

Rutishauser, A., Blankenship, D.D., Sharp, M. Skidmore, M.L., Greenbaum, J.S., Grima, C.,Schroeder, D.M., Dowdeswell, J.A. and Young, D.A. (2018) A hypersaline subglacial lake complex beneath Devon Ice Cap, Canadian Arctic. Science Advances, 4, eaar4353, doi: 10.1126/sciadv.aar4353

Michaud A.B., Dore, J.E., Achberger, A.M., Christner, B.C., Mitchell, A.C., Skidmore M.L., Vick-Majors, T.J., Priscu, J.C. (2017) Microbial methane transformations beneath the West Antarctic Ice Sheet. Nature Geoscience, 10(8), 582-586, doi:10.1038/ngeo2992

Adam, Z.R., Skidmore, M.L., Mogk, D.W. and Butterfield, N.J., (2017) A Laurentian record of the earliest fossil eukaryotes. Geology,45(5), 387–390, doi:10.1130/G38749.1.

Vick-Majors, T.J., Mitchell, A.C., Achberger, A.M., Christner, B.C., Dore, J.E., Michaud, A.C., Mikucki, J., Purcell, A.M., Skidmore, M.L., Priscu, J.C., (2016) Physiological ecology of microorganisms in Subglacial Lake Whillans. Frontiers in Microbiology, 7, 1705. doi:10.3389/fmicb.2016.01705.

Achberger, A.M., Christner, B.C., Michaud, A.C., Priscu, J.C., Skidmore, M.L., Vick-Majors, T.J. and the WISSARD Science Team (2016) Microbial community structure of Subglacial Lake Whillans, West Antarctica. Frontiers in Microbiology, 7, 1457. doi:10.3389/fmicb.2016.01457.

Michaud A.B., Skidmore, M.L., Mitchell, A., Vick-Majors, T.J., Priscu J.C., Barbante C., Turetta, C., van Gelder, W., (2016) Solute sources and geochemical processes in Subglacial Lake Whillans, West Antarctica. Geology, 44(5), 347-350,doi:10.1130/G37639.1. See also Research Focus

Adam, Z.R., Skidmore, M.L., Mogk, D.W. (2016) Paleoenvironmental implications of an expanded microfossil assemblage from the Chamberlain Formation, Belt Supergroup, Montana, in MacLean, J.S., and Sears, J.W., eds., Belt Basin: Window to Mesoproterozoic Earth. Geological Society of America Special Paper, 522, 101-119, doi:10.1130/2016.2522(04).

Harrold, Z.R., Skidmore, M.L., Hamilton, T.L., Desch, L., Amada, K., van Gelder, W., Glover, K., Roden, E.E., Boyd, E.S., (2016) Aerobic and anaerobic thiosulfate oxidation by a cold-adapted, subglacial chemoautotroph. Applied and Environmental Microbiology, 82, 1486-1495, doi:10.1128/AEM.03398-15. Editors spotlight

Vick-Majors, T.J., Achberger, A., Santibañez, P., Dore, J.E., Hodson, T., Michaud, A., Christner, B.C, Mikucki, J., Skidmore, M.L., Powell, R., Adkins, P., Barbante, C., Mitchell, A., Scherer, R., Priscu J.C. (2016) Biogeochemistry and microbial diversity in the marine cavity beneath the McMurdo Ice Shelf, Antarctica. Limnology and Oceanography, 61(2), 572-586, doi:10.1002/lno.10232

Telling, J., Boyd, E.S., Bone, N., Jones, E.L., Tranter, M., MacFarlane, J.W., Martin, P.G., Wadham, J.L., LaMarche-Gagnon, G., Skidmore, M.L., Hamilton, T.L., Hill, E., Jackson, M. and Hodgson, D.A. (2015) Rock comminution as a source of hydrogen for subglacial ecosystems. Nature Geoscience, 8, 851-855, doi:10.1038/ngeo2533

Brox, T.I., Skidmore, M.L., Brown, J.R (2015) Characterizing the internal structure of laboratory ice samples with nuclear magnetic resonance. Journal of Glaciology, 61, (225), 55-64, doi:10.3189/2015JoG14J133

Vogt, S.J., Shaw, C.A., Maneval, J.E., Brox, T.I., Skidmore, M.L., Codd, S.L., Seymour, J.D. (2014) Magnetic resonance measurements of flow-path enhancement during supercritical CO2 injection in sandstone and limestone rock cores. Journal of Petroleum Science and Engineering, 122, 507-514, doi: 10.1016/j.petrol.2014.08.013

Christner, B.C., Priscu J.C., Achberger, A.M., Carter, S.P., Christianson, K., Michaud, A.B., Mikucki, J.A., Mitchell, A.C., Skidmore, M.L., Vick-Majors, T.J. and the WISSARD Science Team (2014). A microbial ecosystem beneath the West Antarctic ice sheet. Nature, 512, 310-313, doi:10.1038/nature13667.

Boyd, E.S., Hamilton, T.L, Havig, J.R., Skidmore M., Shock, E.L. (2014) Chemolithotrophic primary production in a subglacial ecosystem. Applied and Environmental Microbiology, 80, 6146-6153, doi:10.1128/AEM.01956-14. (October 2014 cover article).

Florentine, C., Skidmore, M., Speece, M., Link, C. and Shaw, C. (2014) Geophysical analysis of transverse ridges and internal structure at Lone Peak Rock Glacier, Big Sky, Montana, USA. Journal of Glaciology, 60, (221), 453-462, doi: 10.3189/2014JoG13J160.

Bakermans, C., Skidmore, M.L., Douglas, S., McKay, C.P. (2014) Molecular characterization of bacteria from permafrost of the Taylor Valley, Antarctica, FEMS Microbiology Ecology, 89 (2), 331-346, doi: 10.1111/1574-6941.12310

Brown, J.R., Seymour, J.D. Brox, T.I., Skidmore, M.L., Wang, C., Christner, B.C., Luo, B.-H., Codd, S.L. (2014) Recrystallization inhibition in ice due to ice binding protein activity detected by nuclear magnetic resonance. Biotechnology Reports, 3, 60-64, doi: 10.1016/j.btre.2014.06.005

Montross, S., Skidmore, M., Christner, B., Samyn, D., Tison, J.L., Lorrain, R., Doyle, S., Fitzsimons, S. (2014) Debris-rich basal ice as a microbial habitat, Taylor Glacier, Antarctica. Geomicrobiology Journal, 31(1), 76-81, doi: 10.1080/01490451.2013.811316

Doyle, S.M., Montross, S.N., Skidmore, M.L., Christner, B.C. (2013) Characterizing microbial diversity and the potential for metabolic function at −15 °C in the basal ice of Taylor Glacier, Antarctica. Biology, 2(3), 1034-1053, doi:10.3390/biology2031034

Mitchell, A.C., Lafrenière, M.J., Skidmore, M.L., Boyd, E.S. (2013) Influence of bedrock mineral composition on microbial diversity in a subglacial environment. Geology, 41, (8) 855-858, doi:10.1130/G34582.1

Priscu, J.C., Achberger, A.M. , Cahoon, J.E., Christner, B.C., Edwards, R.L., Jones, W.L., Michaud, A.B., Siegfried, M.R., Skidmore, M.L., Spigel, R.H, Switzer, G.W., Tulaczyk, S., Vick-Majors, T.J. (2013). A microbiologically clean strategy for access to the Whillans Ice Stream subglacial environment. Antarctic Science, 25(5), 637–647, doi:10.1017/S0954102013000035.

Hamilton, T. L, Peters, J.W., Skidmore, M.L., Boyd, E.S. (2013) An active endogenous microbiome beneath glacial ice. ISME Journal, 7, 1402-1412, doi:10.1038/ismej.2013.31

Montross, S.N, Skidmore, M., Tranter, M., Kivimäki, A.-L., Parkes, R.J. (2013) A microbial driver of chemical weathering in glaciated systems. Geology, 41, 215-218,

Brown, J.R., Brox, T.I., Vogt, S.J., Seymour, J.D., Skidmore, M.L., Codd, S.L. (2012) Magnetic Resonance Diffusion and Relaxation Characterization of Water in the Unfrozen Vein Network in Polycrystalline Ice and its Response to Microbial Metabolic Products. Journal of Magnetic Resonance, 225, 17-24

Skidmore, M., Jungblut, A., Urschel, M. and Junge, K. (2012) Cryospheric Environments in Polar regions (Glaciers and Ice Sheets, Sea Ice and Ice Shelves), p 218-239, in Polar Microbiology: Life in a Deep Freeze, (Eds.) Whyte and Miller. American Society for Microbiology Press, Washington D.C. 312pp.

Achberger, A.M., Brox, T.I., Skidmore, M.L. and Christner B.C. (2011) Expression and partial characterization of an Ice Binding Protein from a Bacterium Isolated at a Depth of 3,519 Meters in the Vostok Ice Core, Antarctica. Frontiers in Microbiology, 2, doi: 10.3389/fmicb.2011.00255

Bakermans, C. and Skidmore, M. (2011b). Microbial Respiration in Ice at Subzero Temperatures (-4 to -33oC). Environmental Microbiology Reports, 3(6), 774-782.

Boyd, E.S. Lange, R.K., Mitchell, A., Havig, J.R., Hamilton, T.L., Lafrenière, M.J., Shock, E.L., Peters, J.W., Skidmore, M. (2011)Diversity, Abundance, and Potential Activity of Nitrifying and Nitrate Reducing Microbial Assemblages in a Subglacial Ecosystem. Applied and Environmental Microbiology, 77(14), 4778-4787.

Skidmore, M. (2011) Microbial communities in Antarctic subglacial aquatic environments. (SAE) in Exploration and Study of Antarctic Subglacial Aquatic Environments, AGU Geophysical Monograph 192, p. 61-81 (Eds.) Siegert, Bindschadler and Kennicutt. ACU Press, Washington DC.

Bakermans, C. and Skidmore, M. (2011). Microbial Metabolism in Ice and Brine at -5°C Environmental Microbiology, 13(8), 2269–2278.

Davila A.F., Skidmore, M., Fairén, A.G., Cockell, C. and Schulze-Makuch, D. (2010) New priorities in the robotic exploration of Mars: The case for in situ search of extant life. Astrobiology, 10(7), 705-710.

Wadham, J.L., Tranter, M., Skidmore, M., Hodson, A.J., Priscu, J., Lyons, W.B., Sharp M., Wynn, P., Jackson M. (2010) Biogeochemical weathering under ice: size matters Global Biogeochemical Cycles, 24, GB3025, doi:10.1029/2009GB003688.

Boyd, E. Skidmore, M., Mitchell, A., Bakermans, C., Peters, J. (2010) Methanogenesis in subglacial sediments. Environmental Microbiology Reports, 2(5), 685-692.

Skidmore, M., Tranter, M., Tulaczyk, S., Lanoil, B. (2010) Hydrochemistry of ice stream beds - evaporitic or microbial effects? Hydrological Processes, 24, 517-523

Gaidos, E., Marteinsson, V., Thorsteinsson, T., Johannesson, T., Rafnsson, A.R., Stefansson, A., Glazer, B., Lanoil, B., Skidmore, M., Han, S.K., Miller, M., Rusch, A., Foo, W. (2009) An oligarchic microbial assemblage in the anoxic bottom waters of a volcanic subglacial lake. ISME Journal: Multidisciplinary Journal of Microbial Ecology, 3, 486-497.

Lanoil, B., Skidmore, M., Priscu, J.C., Han, S.K., Foo, W., Vogel, S.W., Tulaczyk, S., Engelhardt, H. (2009) Bacteria beneath the West Antarctic Ice Sheet. Environmental Microbiology, 11 (3), 609-615.

Christner, B.C., Cai, R., Morris, C.E., McCarter, K.S., Foreman, C.M., Skidmore, M.L., Montross, S.N., Sands, D.C. (2009) Geographic location, season, and precipitation chemistry influence on the abundance and activity of biological ice nucleators in rain and snow. Proceedings of the National Academy of Sciences, (105), 48, 18854-18859.

Statham, P.J., Skidmore, M.L., Tranter, M. (2008) Inputs of glacially derived dissolved and colloidal iron to the coastal ocean and implications for primary productivity. Global Biogeochemical Cycles, 22, GB3013. doi:10.1029/2007GB003106.

Christner, B., Skidmore, M., Priscu, J., Tranter, M. and Foreman, C. (2008). Bacteria in subglacial environments. p51-71 in Psychrophiles: from biodiversity to biotechnology,(Eds.) Margesin, Schinner, Marx and Gerday. Springer-Verlag, Berlin.