Bradley Cramer

Bradley Cramer is a Professor of Earth and Environmental Sciences at the University of Iowa, affiliated with the College of Liberal Arts and Sciences. His research focuses on understanding Earth's major biotic, chemical, and physical events through integrated stratigraphic methodologies. Current projects include an NSF CAREER grant investigating Neogene-scale resolution of Silurian (∼430 Ma) biogeochemical events using chemostratigraphy, biostratigraphy, and radiometric dating.

Education: PhD, MS, and BS in Geological Sciences from The Ohio State University. Expertise spans Earth system science, stable isotope geochemistry, and high-resolution event stratigraphy (HiRES). Key research areas include Silurian chronostratigraphy, paleoceanographic events, and the development of chronostratigraphic frameworks.

Research explores carbon isotope excursions (e.g., Mulde, Ireviken, Hangenberg), sequence stratigraphy, and the integration of conodont biostratigraphy with geochronological techniques. Current studies emphasize the Wenlock Epoch of the Silurian Period, aiming to achieve sub-100 kyr temporal resolution for global environmental changes.

• Publications focus on Silurian stratigraphy, carbon cycle dynamics, and Paleozoic biostratigraphy
• Led development of HiRES methodology for high-precision chronostratigraphic correlation
• Collaborates on the Digital Integrated Stratigraphy Project (DISP) for open-access chronostratigraphic data

Awards: NSF CAREER Grant 2020+ (current funding). Active in geoscience diversity advocacy through GSA policy statements.

Lab affiliations include the University of Iowa Paleozoic Earth History Group, focusing on deep-time environmental and evolutionary processes. Advises graduate students in geology and geosciences, emphasizing field and lab-based research methodologies.