Suzanne Mulligan Autrey

Research Interests

• Metamorphic petrology and petrochronology in metamorphic core complexes
• Development, assessment, and application of elastic geobarometers and geothermometers
• Mineral stress and strain analysis using Raman and synchrotron X-ray diffraction
• Experimental petrology studying metamorphic minerals at extreme conditions

Specific Research Endeavors

• Extending the quartz-in-garnet elastic geobarometer for use in tensionally stressed quartz inclusions
• Using U-(Th)-Pb titanite, monazite, and zircon petrochronlogy and pressure-temperature modeling in western US Cordilleran core complexes to evaluate the timing and conditions of mid-crustal deformation in the Sevier hinterland
• Testing models for the emplacement of the Pelona-Orocopia-Rand schist suite using geothermobarometry and garnet geochronology
• Developing a geobarometer for shocked pyroxene

Frequently Taught Classes

• EAE 120: Planet Earth
• EAE 325: Solid Earth Composition

Representative Publications

Mulligan S. R., Wells M. L., Hoisch T. D., Salamat A., Childs C., Tschauner O., Craddock Affinati S., Willis M. A., Smith A. G. (2022). Deviation between quartz-in-garnet elastic geobarometry and thermodynamic P-T modeling in Barrovian metamorphic rocks. Journal of Metamorphic Geology.

Mulligan S. R., Stavrou E., Chariton S., Tschauner O., Salamat A., Wells M. L., Smith A.G., Hoisch T.D., Prakapenka V. (2021). Equation of state for natural almandine, spessartine, pyrope garnet: Implications for quartz-in-garnet elastic geobarometry. Minerals 11(5), 458.

Haxel, G.B., Epstein, G.S., Jacobson, C.E., Wittke, J.H., Standlee, K.G., and Mulligan, S.R., (2022). Mantle peridotite and associated metasomatic rocks in the Orocopia Schist subduction channel (latest Cretaceous) at Cemetery Ridge, southwest Arizona: Geologic map, petrology, and structural setting: Arizona Geological Survey Contributed Report CR-22-A, 85 p., map scale 1:2000. rt

Zuza A. V., Levy D.A., Mulligan, S. R. (2020). Geologic field evidence for non-lithostatic overpressure recorded in the North American Cordillera hinterland, northeast Nevada. Geoscience Frontiers