J. Barry Maynard
Professor
Department of Geology
University of Cincinnati
United States of America
Biography
Research career focused on the chemistry of metals at the Earth’s surface, with prinicpal focus in recent years on Mn, Fe, Cu and Pb. Systems studied include Mn-Fe ore bodies, constructed wetlands treating mine drainage, slope stability problems, and corrosion scales in drinking water systems. Supervised 9 PhD and 24 MS students.
Research Interest
Our research group is studying the geochemical behavior of sulfur and metals in three settings: sediment-hosted ore deposits, acid mine drainage,and drinking water distribution systems. For sedimentary ores, we have worked on deposits of iron, manganese, gold, uranium, and copper. Current projects include S and Sr isotopic chemistry of the Red Dog deposit in Alaska and similar deposits in Cuba, C-S geochemistry of black shales hosting Cu mineralization in Zambia, and diagenetic evolution of Au-bearing Witwatersrand quartzites in South Africa. We also have a program of research on improving the effectiveness of constructed wetlands used to remediate acid mine drainage. We recently completed an extensive survey of S isotope chemistry of constructed wetlands, and are working on the chemistry of anoxic drain fills. Finally, our research group, under a grant from the American Water Works Association Research Foundation is pursuing problems of Pb and Cu contamination of drinking water arising from dissolution of minerals coating the insides of distribution pipes and household plumbing.
Publications
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Gerke, T.L., Scheckel, K.G., Maynard, J.B., 2010, Speciation and distribution of vanadium in drinking water iron pipe corrosion by-products, Science of The Total Environment, Volume 408 -- Special Section: Integrating Water and Agricultural Management Under Climate Change – p. 5845-5853,
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Maynard, J.B., 2010, The chemistry of manganese ores through time: a signal of increasing diversity of earth-surface environments: Economic Geology, v. 105, p. 535-552.
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Potter, P.E., Maynard, J.B., and Huff, W.D., 2009, Steps in the History of Mudstone Investigations—A Timeline, 1556 Through 2007: Earth Science History, v. 28, p. 84, 107.
