School of Earth and Environment
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Caroline Peacock Dr Caroline Peacock

Lecturer: Biogeochemistry

Telephone number: +44(0) 113 34 37877
Email address: C.L.Peacock@leeds.ac.uk
Room: 9.148

Link to personal page

Biography

The overarching goal of my research is to better understand how molecular interactions control the reactivity and cycling of constituents in the terrestrial and marine environments. To this end, my work focuses on the mineral-water interface and the micro-scale processes that control soil and sediment geochemistry and the composition of natural waters. These processes play key roles in the biogeochemical cycling of micro-nutrients, the generation of ore-forming fluids and the retardation of contaminants in the subsurface.

Current research areas include probing the chemical reactivity of the abiotic and biotic mineral-water interface, investigating key biogeochemical controls on freshwater and marine chemistry, and applying mineral-water interface research to the understanding and development of novel paleoceanographic proxies for ocean anoxia and long-term climate change.

Work combines synchrotron-based X-ray spectroscopy, quantum mechanical modeling and aqueous geochemical modeling with novel laboratory sorption and stable isotope fractionation experiments.

Qualifications

  • BSc(Hons) Environmental Geoscience, University of Bristol
  • PhD Geochemistry, University of Bristol

Memberships/Fellowships

  • Member of The Mineralogical Society of Great Britain and Ireland (MinSoc)
  • Treasurer Environmental Mineralogy Group, special interest group of the MinSoc
  • Member of The Geochemical Society
  • Fellow of The Higher Education Academy

Research Interests

  • Mineral-water interfaces and interfacial processes
  • Biogeochemical cycling of trace-metals and micro-nutrients
  • Trace-metal signatures in terrestrial and marine sedimentary archives

Publications

  • Moon, EM; Peacock, CL (2011) Adsorption of Cu(II) to Bacillus subtilis: A pH-dependent EXAFS and thermodynamic modelling study, Geochimica et Cosmochimica Acta, 75, pp.6705-6719. doi:10.1016/j.gca.2011.08.004
  • Sherman, DM; Peacock, CL (2010) Surface complexation of Cu on birnessite (d-MnO2): Controls on Cu in the deep ocean, Geochimica et Cosmochimica Acta, 74, pp.6721-6730. doi:10.1016/j.gca.2010.08.042
  • Peacock, CL (2009) Physiochemical controls on the crystal-chemistry of Ni in birnessite: Genetic implications for ferromanganese precipitates, GEOCHIM COSMOCHIM AC, 73, pp.3568-3578. doi:10.1016/j.gca.2009.03.020
  • Sherman, DM; Peacock, CL; Hubbard, CG (2008) Surface complexation of U(VI) on goethite (alpha-FeOOH), GEOCHIM COSMOCHIM AC, 72, pp.298-310. doi:10.1016/j.gca.2007.10.023
  • Sherman, D; Hubbard, C; Peacock, C (2008) Surface complexation of U(VI) by Fe and Mn (hydr)oxides, In: Merkel; B, J; Hasche-Berger, A (Ed) Uranium, Mining and Hydrogeology, Springer. doi:10.1007/978-3-540-87746-2
  • Peacock, CL; Sherman, DM (2007) Sorption of Ni by birnessite: Equilibrium controls on Ni in seawater, CHEM GEOL, 238, pp.94-106. doi:10.1016/j.chemgeo.2006.10.019
  • Peacock, CL; Sherman, DM (2007) Crystal-chemistry of Ni in marine ferromanganese crusts and nodules, AM MINERAL, 92, pp.1087-1092. doi:10.2138/am.2007.2378
  • Peacock, CL; Sherman, DM (2005) Copper(II) sorption onto goethite, hematite, and lepidocrocite: A surface complexation model based on ab initio molecular geometries and EXAFS spectroscopy (vol 68, pg 2623, 2004), GEOCHIM COSMOCHIM AC, 69, pp.5141-5142. doi:10.1016/j.gca.2005.02.020
  • Peacock, CL; Sherman, DM (2005) Surface complexation model for multisite adsorption of copper(II) onto kaolinite, GEOCHIM COSMOCHIM AC, 69, pp.3733-3745. doi:10.1016/j.gca.2004.12.029
  • Peacock, CL; Sherman, DM (2004) Vanadium(V) adsorption onto goethite (alpha-FeOOH) at pH 1.5 to 12: A surface complexation model based on ab initio molecular geometries and EXAFS spectroscopy, GEOCHIM COSMOCHIM AC, 68, pp.1723-1733. doi:10.1016/j.gca.2003.10.018
  • Peacock, CL; Sherman, DM (2004) Copper(II) sorption onto goethite, hematite and lepidocrocite: A surface complexation model based on ab initio molecular geometries and EXAFS spectroscopy, GEOCHIM COSMOCHIM AC, 68, pp.2623-2637. doi:10.1016/j.gca.2003.11.030
  • Peacock, CL; Sherman, DM (2002) Vanadium (III, IV and V) sorption onto goethite alpha-FeOOH, GEOCHIM COSMOCHIM AC, 66, pp.A583-A583.