Daniel Layton-Matthews

Daniel Layton-Matthews initially became interested in geology during his first year of his undergraduate degree at the University of Manitoba. During the subsequent four years, he became fascinated with ore deposits choosing to work on the alteration associated with the Mallery Lake Epithermal System in the N.W.T. as a B.Sc. Honors thesis. During his four years in Geology at the University of Manitoba, Daniel worked for the Manitoba Geological Survey, Phelps Dodge Corporation of Canada, and as a research assistant to Dr. A.C.L. Larocque.

In 1998, Daniel was fortunate to be introduced to Dr. C.M. Lesher from Laurentian University, who was on a Canadian lecture tour. During this meeting, Daniel secured a M.Sc. position at Laurentian University working on the Metasomatism of Ultramafic Intrusions in the Thompson Nickel Belt and the Implications for Mineral Exploration.

In the course of his M.Sc. at Laurentian University, Daniel was fortunate to acquire a Natural Sciences and Engineering Research Council post-graduate award for PhD studies at a Canadian University.

Again, through a lecture tour, Daniel was introduced to Dr. S.D. Scott from the University of Toronto, with whom he is currently working. His current research is a joint Geological Survey of Canada (Dr. J. Peter) and University of Toronto project on the Finlayson Lake Area Volcanogenic Massive Sulfide deposits in the Yukon, Canada. During metallurgical studies of these deposits, it was found that some deposits were extremely enriched in selenium, whereas others were not. Daniel’s research proposes to explain the distribution of selenium within/between these deposits, and to identify the origin of selenium in the sulfide mineralization.

Daniel’s PhD research to date has included Electron Probe Micro-Analysis and Synchrotron X-ray Fluorescence Micro-Analysis of sulfide minerals, which has identified stoichiometric substitution of Se for S in the lattice of all major sulfide minerals (galena: ~14 wt%; sphalerite ~1100 ppm; pyrite ~100 ppm; chalcopyrite ~300 ppm). The distribution of Se within the sulfide mineralization is characterized by increased mineral and whole-rock abundance with increased proximity to the deposit(s) footwall, where chalcopyrite mineralization is dominant. Empirically, this would suggest that the distribution of Se within these deposits is closely related to high-temperature areas of hydrothermal discharge, which is in agreement with modern seafloor systems. Currently, a selenium stable isotope study is being conducted by Daniel and will be the first attempt to apply 80Se/ 76Se ratios to “fingerprint” the source(s) of selenium in ore deposits.

Previous Recipients:

    • In 2023, The Hawley Medal was awarded to Andrew McDonald of Laurentian University, Chris Beckett-Brown of the OGS, and Beth McClenaghan of the GSC for their paper entitled:
      “Trace Elements Characteristics of Tourmaline in Porphyry Cu Systems Development and Application to Discrimination.”
    • In 2022, The Hawley Medal was awarded to Drs. Paula C. Piilonen and Glenn Poirier (Canadian Museum of Nature), William Lechner, Ralph Rowe (Canadian Museum of Nature), and R. Peter Richards (Oberlin College) for their paper entitled:
      “ZEOLITE MINERALS FROM WAT OCHENG, TA ANG, RATANAKIRI PROVINCE, CAMBODIA – OCCURRENCE, COMPOSITION, AND PARAGENESIS.”
    • In 2021, The Hawley Medal is awarded to Drs. Andrew J. Kaczowka (Cameco Exploration), T. Kurt Kyser (deceased, formerly from Queen’s University), Tom G. Kotzer (University of Saskatchewan), Matthew I. Leybourne, and Daniel Layton-Matthews (Queen’s University). The paper is entitled:
      “Geometallurgical ore characterization of the high-grade polymetallic unconformity-related uranium deposit” The Canadian Mineralogist, September 2021; Vol. 59, part 5, 813-845 https:// pubs.geoscienceworld.org/canmin/article-
      abstract/59/5/813/608140/ Geometallurgical-ore-characterization-of-the-high.
    • In 2020, The award for the best paper published went to Drs. Zeinab Azadbakht (Ontario Geological Survey) and David R. Lentz (Department of Earth Sciences, University of New Brunswick) for their paper:
      “High-Resolution LA-ICP-MS Trace-Element Mapping of Magmatic Biotite: A New Approach for Studying Syn- to Post-Magmatic Evolution”, which appeared in The Canadian Mineralogist v58n3, pp 293–311
      (https://doi.org/10.3749/canmin.1900101). Zeinab Azadbakht has been the R
    • In 2019, this award went to Drs. Elliot A. Wehrle and Andrew M. McDonald (Harquail School of Earth Sciences, Laurentian University) for the following paper:
      “Cathodoluminescence and Trace-Element Chemistry of Quartz from Sudbury Offset Dikes: Observations, Interpretations and Genetic Implications” The Canadian Mineralogist, 2019, v57(6), pp947–963 (https://doi.org/10.3749/canmin.1900049). This contribution combines cathodoluminescence (CL) data and trace
    • In 2018, the Hawley Medal awarded to the best paper published in The Canadian Mineralogist went to Rémy S. Poulin, Daniel J. Kontak, and Andrew M. McDonald of Laurentian University (Canada) and Beth McClenaghan of the Geological Survey of
      Canada for the following paper:
      “Assessing Scheelite as an Ore-Deposit Discriminator Using its TraceElement and REE Chemistry” in The Canadian Mineralogist Vol. 56, pp. 265-302, May 2018.
    • In 2017, the medal was awarded to Gil F. Tansman, Paul S. Kindstedt, and John M. Hughes for their paper:
      “Minerals in Food: Crystal Structures of Ikaite and Struvite from Bacterial Smears on Washed-Rind Cheese” (The Canadian Mineralogist v55, pp. 89-100, January 2017).
    • In 2016, the award went to Albert Chan, David M. Jenkins, and M. Darby Dyar for their paper:
      “Partitioning of Chlorine between NaCl Brines and Ferro-Pargasite: Implications for the Formation of Chlorine-rich Amphiboles in Mafic Rocks”, which appeared in the January 2016 issue of Canadian Mineralogist (v54, pp 337–351).
    • In 2015, the award went to Sarah C. Gordon and Andrew M. McDonald for the following paper:
      “A STUDY OF THE COMPOSITION, DISTRIBUTION, AND GENESIS OF PYRRHOTITE IN THE COPPER CLIFF OFFSET, SUDBURY, ONTARIO,” Canadian Mineralogist Vol. 53, part 5, September 2015.
    • In 2014, it is awarded to Fernando G. Sardi and Adriana Heimann for their paper,
      “Pegmatitic beryl as indicator of melt evolution: example from the Velasco District, Pampeana Pegmatite Province, Argentina, and review of worldwide occurrences” (Canadian Mineralogist 52: 809-836).
    • In 2013, the Hawley Medal Awarded went to Felix V. Kaminsky, Richard Wirth, and Anja Schreiber:
      “CARBONATITIC INCLUSIONS IN DEEP MANTLE DIAMOND FROM JUINA, BRAZIL: NEW MINERALS IN THE CARBONATE-HALIDE ASSOCIATION,” Canadian Mineralogist 51: 669-688.
    • In 2012, this year’s award was presented to B. Lalinská-Voleková, J. Majzlan, T. Klimko, M. Chovan, G. Kucˇerová, J. Michnˇová, R. Hovoricˇ, J. Göttlicher and R. Steininger for their paper:
      “Mineralogy of weathering products of Fe-As-Sb mine wastes and soils at several Sb deposits in Slovakia” (Canadian Mineralogist 50: 481-500).
    • In 2011, the Hawley Medal went to Susanne Göb, Thomas Wenzel, Michael Bau, Dorritt Jacob, Anselm Loges, and Gregor Markl. The award winning paper was:
      "The redistribution of rare-earth elements in secondary minerals of hydrothermal veins, Schwarzwald, Southwestern Germany." Canadian Mineralogist 49: 1305-1333 The paper describes the association and chemical compositions
    • In 2010, the Hawley Medal went to Joel D. Grice for the best paper published in The Canadian Mineralogist Grice JD (2010). The role of beryllium in beryllosilicate mineral structures and zeolite formation. Canadian Mineralogist 48: 1493-1518
      In 2009, the Hawley Medal went to David London for the best paper published in The Canadian Mineralogist London D (2009). The origin of primary textures in granitic pegmatites. Canadian Mineralogist 47: 697-723
    • In 2008, the Hawley Medal went to Anderson, Wirth, and Thomas for the best paper published in The Canadian Mineralogist in 2008 Anderson AJ, Wirth R, Thomas R (2008). The alteration of metamict zircon and its role in the remobilization of high-field-strength elements in the Georgeville granite, Nova Scotia. Canadian Mineralogist 46: 1-18
    • In 2007, the Hawley Medal was awarded to Dr. D. Barrie Clarke of Dalhousie University, Halifax, Nova Scotia, Entitled “Assimilation of Xenocrysts in Granitic Magmas: Principles, Processes, Proxies and Problems” (volume 45, pages 5–30)
    • In 2006, the Hawley Medal was awarded to François Farges, Ralf Siewert, Carl Ponader, Gordon Brown Jr., Michel Pichavant, and Harald Behrens for their paper
      “Structural environments around molybdenum in silicate glasses and melts. II. Effect of temperature, pressure, H2O, halogens and sulfur.” Canadian Mineralogist 44: 755-773.