Will Fleming, BSc
Fellow - Fulbright Researcher (2020-2021)
- Interactions between oceanic crust and lithospheric mantle.
- Origin of SWIR's and the Marion Rise's refractory and buoyant nature.
Research projects at Freie Universität Berlin
- Chalcogen Elements in Oman Peridotites: Processing and analyzing rocks from the lower crust, transition zone, and lithospheric mantle preserved in the Wadi Tayin Massif of the Oman ophiolite for abundances of Sulfur, Selenium, and Tellurium. Tracking such elements in mantle rocks elucidates sulfide behavior in these lithospheric zones, adding to a comprehensive understanding of interactions between oceanic crust and lithospheric mantle.
- HSE and Re-Os dating of Marion Rise: Analyzing bulk rock and mineral separates of abyssal peridotites dredged from the Southwest Indian Ridge (SWIR) for highly siderophile element (Re, Os, Ir, Ru, Rh, Pt, Pd) abundances and Os isotopic ratios. This location represents an atypical case study of a slow-spreading ridge, as it is some of the shallowest mid-ocean ridge (typically fast-spreading with more magma and crustal production) as well as slowest-spreading with thin crust and exposed mantle peridotite. This investigation will constrain the history of the mantle below the SWIR and the Marion Rise and explain the origin of its refractory and buoyant nature.
- Fall 2018 – Spring 2020: “Testing Models of Andesite Genesis and Melt Differentiation at Volcanic Arcs Using Olivine Trace Elements in Sierra Chichinautzin Volcanic Field, Mexico”, Bachelor’s Thesis at Columbia University, advised by Dr. Susanne Straub. Presented at AGU Fall meeting 2019 with abstract title, “Using Trace Elements in olivine Phenocrysts to Test Models of Melt Differentiation at Convergent Margins: Constraints from Times Series in Monogenetic Volcanoes in the Central Transmexican Volcanic Belt.” Lab work involving EMPA and LA-ICPMS for in-situ analyses of Olivines for Ni, Ca, Mn, Li, V, and Cr.
- Summer 2018: Experience in University of Washington’s Non-Traditional Isotope Laboratory, under principal investigator Dr. Fang-Zhen Teng and post-doc Dr. Yan Hu. Assisting with K isotope analysis on standard materials.
- Fall 2017-Spring 2018: Research Assistant in Core Lab, Lamont-Doherty Earth Observatory. Under principal investigator Dr. Jerry McManus. Sieving and picking wet sediment samples from the Labrador Sea for relevant foraminifera and ice-rafted debris in ongoing investigations into Heinrich Events.