Logan Medal

Logan Medal

The highest award of the Geological Association of Canada is presented to an individual for sustained distinguished achievement in Canadian earth science.

Barbara Sherwood Lollar, University of Toronto

“For her innovative applications of compound specific stable isotope analysis which have revolutionized geochemistry, notably by establishing the source and fate of anthropogenic organic contaminants in groundwater, and also the presence of abiogenic methane and hydrogen trapped, for more than 1 billion years, in crystalline rocks that are more than 2 km below the surface of the Canadian Shield.”