George H Segee-Wright
Ph.D., Geological Science, Jackson School of Geosciences, expected 2024
Co-supervisors |
I am a mantle geochemist with a focus on volatile element cycling between Earth's surface and mantle. I am interested in combining radiogenic and stable isotope measurements to better constrain lithospheric recycling into the mantle. My current research focuses on using halogen abundances and chlorine isotopes to trace subducted volatile elements into the sub-continental lithospheric mantle and the convecting mantle.
Current Research Projects
Halogen enrichment in the North American lithospheric mantle from the dehydration of the Farallon plate
Chlorine isotope evidence for Farallon-derived chlorine enrichment in the North American SCLM
Fluorine, chlorine, and water contents in coexisting hydrous minerals and nominally anhydrous minerals in North American lithospheric mantle xenoliths
Using Cl, O, and B isotope compositions of MORB glasses as a tracer of deeply subducted volatiles in the convecting mantle
Chlorine, oxygen, and boron isotope compositions of Raivavae, Rapa, and Samoa melt inclusions
Calcium isotope composition of HIMU and EM basalts from Raivavae and Rapa
University of Texas at Austin Graduate School Summer Research Fellowship - University of Texas at Austin (2022)
University of Texas at Austin Graduate School Summer Research Fellowship - University of Texas at Austin (2021)
Graduate Student Research Grant - Geological Society of America (2021)
Harold T. Stearns Fellowship - Geological Society of America (2021)
Whitney Endowed Presidential Scholarship - University of Texas at Austin (2021)
Provost Supplemental Fellowship - University of Texas at Austin (2019 - 2023)
Honors in Geosciences - Hamilton College (2017)
Using Chlorine Isotopes as a Tracer of Mantle Heterogeneity: Towards Resolving the Chlorine Isotope Composition of the Mantle, Jackson School of Geosciences, University of Texas at Austin (2022)
Farallon slab-derived halogens in the North American lithospheric mantle, Jackson School of Geosciences, Virtual (2021)
Chlorine isotope evidence for multiple Farallon- derived components in the North American lithospheric mantle, Goldschmidt Conference, Virtual (2021)
Whole-Rock Geochemistry and U/Pb Zircon Age of a Granite Pluton Exposed on the Sister Islands in Penobscot Bay, ME, Central NY Earth Science Student Symposium, University of Syracuse (2017)
Geochemistry and geochronology of small islands in Penobscot Bay, Geological Society of America Northeastern and North-Central Joint Sectional Meeting, Pittsburg, PA (2017)