Professor of Geology


  • B.A., Carleton College, 1984
  • M.Sc., University of Arizona 1987
  • Ph.D., University of California-Santa Barbara, 1995

Curriculum vitae

Research metrics:   Scopus  //   Research Gate     //   Google Scholar  //  Academia

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Current Projects

Ice sheet erosional Interaction with Hot geotherm (ICI-Hot) in West Antarctica

IODP 379, 2019 West Antarctic Ice Sheet History

Collaborative Research: A systems approach to understanding the Ross Ocean and ice Shelf Environment, and Tectonic setting Through Aerogeophysical surveys and modeling (ROSETTA-ICE)

Emplacement mechanism, paleoenvironment of formation, and lithification/fluid migration history of Neoproterozoic injectites and source rocks, Colorado Front Range

Geodesign at Colorado College – International Geodesign Collaborative

Development of geospatial resources and digital geological maps for Antarctica, via the SCAR GeoMAP project, a joint effort with GNS Science-New Zealand and the Polar Geospatial Center that entails research mentoring and GIS skills development for undergraduates

Recent Publications

Siddoway, C., 2019 with publisher, Geology of West Antarctica (invited chapter), in Kleinschmidt, G., ed., Geology of the Antarctic Continent. Stuttgart: Gebrüder Borntraeger Verlagsbuchhandlung.

Colleoni, F., De Santis, L., Siddoway, C.S., Bergamasco, A., Golledge, N., Lohmann, G., Passchier, S. and Siegert, M., 2018 in press, Spatio-temporal variability of processes across Antarctic ice-bed-ocean interfaces, Nature Communications.

McFadden, R.R., Teyssier, C., Siddoway, C.S., Cosca, M., and Fanning, C.M., 2015, Mid-Cretaceous oblique rifting of West Antarctica: emplacement and rapid cooling of the Fosdick Mountains migmatite-cored gneiss dome, Lithos, doi:10.1016/j.lithos.2015.07.005

Yakymchuk, C., Brown, C.R., Brown, M., Siddoway, C.S., Fanning, C.M. and Korhonen, F.J., 2015, Paleozoic evolution of West Marie Byrd Land, West Antarctica: Geological Society of America Bulletin, doi:10.1130/B31136.1

Siddoway, C. and Gehrels, G.E., 2014, Basement-hosted sandstone injectites of Colorado: A vestige of the Neoproterozoic revealed through detrital zircon provenance analysis, Lithosphere, doi: 10.1130/L390.1,

Siddoway, C.S., Myrow P.,  and Fitz Díaz, E., 2013, Strata, structures and enduring enigmas:  A 125th Anniversary appraisal of Colorado Springs geology, in Abbott, L. and Hancock, G.S. (eds.), Geological Society of America Field Guides, v. 33, Ch. 13, doi:10.1130/2013.0033(13).

Yakymchuk, C., Siddoway, C.S., Brown, M., and Fanning, C.M., 2013, Anatectic reworking and differentiation of continental crust along the active margin of Gondwana: a zircon Hf–O perspective from West Antarctica, in Harley et al. (eds.), Antarctica and Supercontinent Evolution, Geological Society of London Special Publication 383, doi: 10.1144/SP383.7.

Courses taught currently

GY100   In Extinction’sEmbrace: Geological Perspectives on Climate Nonfiction

GY140   Physical Geology

GY250   Topics in Geology: Introduction to Geodesign

GY315   Structural Geology

GY316   Field analysis of Geological Structures

GY445   Regional Studies in Geology [location varies]

GY405   Research Topics in Geology (student research/investigation of primary geological problems)

More on Teaching and Research Mentoring

Research Interests:   Structural and metamorphic geology; tectonic development of West Antarctica and New Zealand within Gondwana; Rocky Mountains tectonics; the role of melt in deformation of migmatites; sandstone injectites.

Geological evolution of Antarctica

Cryogenian Sedimentary Rocks of Colorado

Siddoway family:     Colorado College has another professor by the name of Siddoway, and you guessed it, the two of us are married. Mike teaches Mathematics. If you are seeking the Prof. Siddoway whose research is in divisibility theory of arithmetical rings, or who presently is teaching History of Mathematics at Montana State University, you can reach Mike’s professional web page here.  To reach Mike, email him at


Christine with field assistant, Pearl