Hal Bradbury

My research aims to improve our understanding of marine sedimentary environments through the combined use of isotope geochemistry and numerical modelling. Within this broad field my research focusses on early-stage diagenesis, and the chemical, mineralogical and petrological changes that sediments undergo before they become rocks. Much of my research centres on early diagenetic processes, such as oxidation of organic matter in marine sediments, and the effect these have on changes in carbon mineralisation. To track these early diagenetic processes in marine sediments I utilise a range of stable isotope measurements including Calcium, Strontium, Magnesium, Carbon and Oxygen. Research Areas: Geochemistry Oceanography

Mehta, N; Coutaud, M; Bouchez, J; Bradbury, HJ; Van Zuilen, K; Moynier, F; Gorge, C; Skouri-Panet, F; Benzerara, K. (2023). Barium and strontium isotope fractionation by cyanobacteria forming intracellular carbonates. Geochimica et Cosmochimica Acta. Kleber, GE; Hodson, AJ; Magerl, L; Mannerfelt, ES; Bradbury, HJ; Zhu, Y; Trimmer, M; Turchyn, AV. (2023). Glacial retreat driving enhanced methane emissions in the high Arctic. Nature Geoscience. Giesche, A; Hodell, D; Petrie, C; Haug, G; Adkins, J; Plessen, B; Marwan, N; Bradbury, HJ; Hartland, A; French, A; Breitenbach, S. (2023). Speleothem evidence for recurring summer and winter droughts post-4.2 ka in the Indus River Basin. Nature Communications Earth & Environment.