CHM 0222
Chemistry Building
8051 Regents Drive
College Park, MD 20742

nivea [at] umd [dot] edu

Sarah Penniston-Dorland, James Farquhar

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My PhD focuses on multiple sulfur isotopes as a tool to help understand the role of magma contamination in the Bushveld Complex, South Africa. Looking into problems such as source and timing of contamination can provide valuable insights into Earth’s large-scale processes, i.e. host-rock assimilation during magma emplacement and slab-mantle interactions during subduction.

In addition, other research interests include metamorphic petrology, radiogenic isotopes and collision-related magmatism.

Magalhaes, N., Penniston-Dorland, S., Farquhar, J., Mathez, E.A. (2018) Variable sulfur isotope composition of sulfides provide evidence for multiple sources of contamination in the Rustenburg Layered Suite, Bushveld Complex. Earth and Planetary Science Letters. 492 163-173. DOI: 10.1016/j.epsl.2018.04.010

Wu, N., Farquhar, J., Dottin III, J. W., Magalhaes, N. (2018) Sulfur isotope signatures of eucrites and diogenites. Geochimica et Cosmochimica Acta. 233 1-13. DOI: 10.1016/j.gca.2018.05.002

Magalhães N., Farquhar, J., Bybee, G., Penniston-Dorland, S., Rumble III, D., Kinnaird, J., and McCreesh, M. (2019) Multiple sulfur isotopes reveal a possible non-crustal source of sulfur for the Bushveld Province, southern Africa. Geology. 47 982-986. DOI: 10.1130/G46282.1