Stéphanie Larmagnat

Image Stéphanie Larmagnat
Research Scientist

Research and/or project statements

Sedimentology and stratigraphy of sedimentary basins

Geologic carbon storage

Petrophysic and thermal properties of sedimentary rocks

Tomodensitometry applied to natural ressources (hydrocarbons, geothermal energy, groundwater)

Education and awards

Alice Wilson Post-doctoral fellowship, GSC, Québec city

Mitacs Accelerate Post-doctral fellowship, INRS-ETE, Québec city

Ph.D. Sedimentology, Université Laval 

Key publications

Carter, T. R., Larmagnat, S., Sun, S., Letellier, P., H. A.J. Russell. Porosity characterization using medical computed tomography scans of two deeply buried paleokarst aquifers in Silurian carbonates, southern Ontario, Canada. Hydrogeology Journal (2023) 31:1715–1734,

Rajaobelison, M., Raymond, J., Malo, M., Desayes, C., Larmagnat, S. Understanding heat transfer along extensional faults: The case of the Ambilobe and Ambanja geothermal systems of Madagascar. Geothermics, Volume 104, September 2022, 102455,

Rajaobelison, M., Raymond, J., Malo, M., Desayes, C., Larmagnat, S. Assessment of Petrophysical Rock Properties in North Madagascar: Implications for Geothermal Resource Exploration. Nat Resour Res 30, 3261–3287 (2021).

Larmagnat, S., Des Roches, M; Daigle, L -F; Francus, P; Lavoie, D., Raymond, J; Malo, M; Aubiès-Trouilh, A. Continuous sub-millimetric porosity characterization: metric-scale intervals in heterogeneous sedimentary rocks using medical CT-scanner, Marine Petroleum Geology journal (2019),

Larmagnat, S., Lavoie, D., Rajaobelison, M. M., Raymond, J., 2019. Geothermal assessment of a conventional hydrocarbon reservoir in eastern Québec: Preliminary field and petrophysical data; Geological Survey of Canada, Open File 8597, 44 pages,

Research facility

490 rue de la Couronne
Québec, QC G1K 9A9


International Association of Sedimentologist (IAS)

American Association of Petroleum Geologist (AAPG)