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William Peck

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wpeck

William Peck

Professor of Earth and Environmental Geosciences

Department/Office Information

Earth and Environmental Geoscience
422 Ho Science Center

William Peck teaches mineralogy and petrology, and manages ÌìÃÀ´«Ã½'s Stable Isotope Laboratory. His research program focuses on the magmatism, metamorphism, and ore deposits of the Grenville Province, a billion-year-old exposure of mid-crustal rocks that stretches from Labrador to the Adirondack Mountains of New York. 

BS, Beloit College
MS, University of Wisconsin–Madison
PhD, University of Wisconsin–Madison

  • Petrology, tectonics, magmatism, and ore deposits in the Adirondacks and Grenville Province
  • Anorthosite petrogenesis
  • Petrology of zircon and metamorphic zircon growth 
  • Origin of cordierite-gedrite rocks
  • Conditions of the early Earth
  • Carbon isotopes in minerals with trace carbon (apatite, cordierite, beryl)
  • Carbon isotopes in maple, birch, and walnut syrup
  • Weathering of wollastonite and carbon sequestration
  • Associate editor, American Mineralogist  (2018-present)
  • Associate editor, Canadian Journal of Earth Sciences (2011-present)
  • Associate editor, Geological Society of America Bulletin (2008-2010)
  • Editorial board, Geology, (2005-2007)

(*indicates student author) 

  • Peck, WH, Regan SP, Blum TB, Valley, JW, and *Timothy, SC, 2025, Age of skarn formation and meteoric water infiltration in the Willsboro-Lewis wollastonite district (Adirondack Highlands, New York), Journal of Petrology, v. 66(4), egaf024
  • Peck, WH, and *Lin, HY, 2025, Provenance and depositional age of metasedimentary rocks in the Frontenac terrane (Grenville Province, Ontario), Canadian Journal of Earth Sciences, v. 62: 211–224.
  • Keller, DS, Lee, CA Peck WH, Monteleone, BD, Martin, C, Vervoort, JD, and Bolge,  L, 2024, Mafic slab melt contributions to Proterozoic massif-type anorthosites, Science Advances, v. 10(33), eadn3976.Peck WH, Keller D, *Arnold VS, *McDonald F, *Kuentz LC, and *Nugent PM., 2023, Passive carbon sequestration associated with wollastonite mining, Adirondack Mountains, New York. American Mineralogist, v. 108, p. 1997-2003.
  • Peck, WH, *Rathkopf, CA, Mathur, RD, Matt, PD, 2022, Stable isotope (C, O, S, and Zn) geochemistry of marble-hosted exhalative zinc deposits in the Central Metasedimentary Belt, Grenville Province, Canada: Insights into ore deposition and tectonic setting: Ore Geology Reviews, v. 148, 105057. https://doi.org/10.1016/j.oregeorev.2022.105057
  • Peck, WH, and *Quinan MP, 2022, New age constraints on magmatism and metamorphism in the Morin terrane (Grenville Province, Quebec): Canadian Journal of Earth Sciences, v. 59, p. 232–242.
  • Peck, WH, and *Eppich, GR, 2019, The Kilmar magnesite deposits: Evaporitic metasediments in the Grenville supergroup, Morin terrane, Quebec: Minerals, v. 9, 554.
  • Peck, WH, *Quinan, MP, and Selleck, BW, 2019, Detrital zircon constraints on Grenville sedimentation at the margin of Laurentia: Precambrian Research, v. 331, 105342.
  • Peck, WH, Selleck, BW, Regan, SP, *Howard, G, and *Kozel, OO, 2018, In-situ dating of metamorphism in Adirondack anorthosite: American Mineralogist, v. 103, p. 1523-1529.
  • Darling, RS, and Peck, WH, 2016, Metamorphic conditions of Adirondack rocks: Adirondack Journal of Environmental Studies, v. 21, p. 61-79.
  • Peck, WH, 2016, Episodes in geologic investigations of the Adirondacks: Adirondack Journal of Environmental Studies, v. 21, p. 41-60.
  • Wilde, S, Valley, JW, Peck, WH, and Graham, CM, 2001, Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4.4 Gyr ago: Nature, v. 409, p. 175-178.