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Jessica Fitzsimmons is a chemical oceanographer whose research focuses on the biogeochemical cycling of trace metals in the ocean. Her work emphasizes the significance of trace metals such as iron, copper, and zinc, which serve as essential nutrients for marine organisms and act as tracers for oceanographic processes. Fitzsimmons studies the distribution, physicochemical speciation, and isotope ratios of trace metals in seawater to understand their biological utilization and their role in global carbon cycling and climate change. She employs inductively coupled plasma mass spectrometry (ICP-MS) for her analyses, collaborating with various labs to measure biological, geological, and physical parameters in order to provide context for her findings within the global ocean system. Fitzsimmons teaches courses on oceanography, hydrothermal vents, and chemical oceanography at Texas A&M University, where she also mentors several Ph.D. students.
Department: Department of Communication and Journalism. Ph.D. program only currently admitting. GRE is test-optional.