H. Wayne Nesbitt, FRSC
Geochemistry
Professor Emeritus
Office: Rm. 1009A Bio. & Geo. Bldg.
Phone: 1-519-661-2111 x.83194
Fax: 1-519-661-3198
Email: hwn@uwo.ca
Research Interests
Redox reactions at MnO2 surfaces and
production of toxins; Surface properties of pentlandite and its
flotation properties; Surface analysis of As-bearing sulphide minerals
using X-ray Photoelectron Spectroscopy (XPS); Quantitative Secondary
Ion Mass Spectrometry (SIMS) of minerals; Inorganic and microbial
alteration of arsenopyrite and pyrite or marcasite; Karroo Gabbro
weathering profile development; Processes involved in weathering of a
granite under arid conditions; the Mojave Desert; The origin of
chemical variations in groundwaters from a small watershed in
southwestern Ontario; Surface chemical studies of Birnessite reduction:
Reaction with chromium (III), selenite, oxalate and humate
Selected Publications
Nesbitt, H.W., Scaini, M.,
Hochst, H., Bancroft, G.M., Schaufuss, A.G. and Szargan, R. 2000
Synchrotron XPS evidence for Fe2+-S and Fe3+-S surface species on
pyrite fracture-surfaces, and their 3d electronic states. Amer.
Mineral. v. 85, p. 850-857.
Banerjee,
D. and Nesbitt, H.W. 2000 XPS study of reductive dissolution of
birnessite by H3SeO3 with constraints on reaction mechansim. Amer.
Mineral. v. 85, p. 817-825.
Pratt, A.R. and Nesbitt, H.W. 2000 Core level electron binding energies of realgar (As4S4). Amer. Mineral. v. 85, p. 619-622.
Nesbitt,
H.W., Legrand, D. and Bancroft, G.M. 2000 Interpretation of Ni2p XPS
spectra of Ni conductors and Ni insulators. Phys. Chem. of Minerals, v
27, p. 357-366.
Young,
G.M., Long, D.G.F., Fedo, C.M. and Nesbit H.W. 2000 The
Paleoproterozoic Huronian Basin: Product of a Wilson Cycle acompanied
by glaciation and meteorite impact. Sedimentary Geology (in Press).
Students
Ryan Sawyer - Ph.D. candidate (with Rick Secco)
