Oscar Branson

Oscar Branson is an Official Fellow and Director of Studies in Natural Sciences (Earth Sciences) at Queens' College, University of Cambridge. His academic career focuses on understanding Earth's climate history through the study of marine microfossils and biogeochemical processes.

His research spans several key areas:

• Paleoclimatology and paleoceanography
• Biomineralization processes in marine organisms
• Geochemical proxies for reconstructing past climate conditions
• Foraminifera ecology and geochemistry
• Elemental and isotopic composition of marine carbonates
• Climate change impacts on marine ecosystems

Branson's recent publications demonstrate a strong focus on understanding the fundamental mechanisms behind geochemical proxy systems used in paleoclimate research. His work combines detailed laboratory analyses with field observations to improve our understanding of how marine organisms incorporate chemical signatures into their shells. His research has particular relevance for understanding how current climate change compares to natural variability in Earth's history.

Among his notable contributions are advancements in understanding boron isotopes as pH proxies, the mechanisms behind magnesium-calcium ratios as temperature proxies, and the role of symbionts in controlling elemental incorporation in marine microfossils. His methodological innovations, including the development of the Kgen algorithm for carbonate chemistry calculations, have provided new tools for the paleoclimate research community.

As Director of Studies in Earth Sciences at Queens' College, Branson plays a key role in undergraduate education and mentorship within the Natural Sciences Tripos at the University of Cambridge.