Sandi Smart

Sandi Smart is a Dean's Postdoctoral Research Associate in the Department of Geological Sciences at the University of Alabama's College of Arts and Sciences, previously holding an NSF Postdoctoral Research Fellowship. Her work bridges marine geochemistry and paleoclimate reconstruction through innovative analysis of biominerals and isotopic systems.

Her academic credentials include:

• PhD in Geology from Stellenbosch University, South Africa (2020)
• MSc in Ocean & Atmosphere Science from University of Cape Town (2014)
• BSc (Hons) in Ocean & Atmosphere Science from University of Cape Town (2011)
• BSc in Ocean & Atmosphere Science and Environmental & Geographical Sciences from University of Cape Town (2010)

Dr. Smart's research centers on stable isotope geochemistry applied to planktic foraminifera, with emphasis on $$\delta^{15}\text{N}$$ analysis to reconstruct Antarctic Ocean dynamics and carbon cycling during the Quaternary. She pioneers materials science approaches including EBSD crystallography, MicroCT density mapping, and NanoSIMS organic element distribution to assess biomineral preservation—a critical factor for reliable paleo-reconstructions and understanding ocean acidification impacts on calcifiers.

Her publication record (2015-2024) reveals consistent methodological innovation in nitrogen isotope proxies, spanning modern ocean processes (Agulhas leakage, Antarctic nitrification) to deep-time applications (Cretaceous shark trophic ecology). This interdisciplinary work integrates chemical oceanography, paleobiology, and materials science to address fundamental questions about Earth's climate system.

Her recognition includes:

• NSF Postdoctoral Research Fellowship

Dr. Smart actively mentors early-career researchers, evidenced by student-first-author publications in top journals. Her projects leverage university-wide analytical facilities and collaborative networks across oceanography, geochemistry, and climate science disciplines. Current work focuses on biomineral preservation mechanisms during early sediment burial—a key uncertainty in paleoclimate proxy interpretation.

Her laboratory collaborations utilize advanced instrumentation including electron backscatter diffraction systems, micro-computed tomography scanners, and nanoscale secondary ion mass spectrometers, positioning her at the intersection of Earth sciences and materials characterization.