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Age, geochemistry, and fluid characteristics of the MAX porphyry Mo deposit, southeast British Columbia

  • Author / Creator
    Lawley, Christopher John Michael
  • MAX is a porphyry Mo deposit located near Trout Lake village in southeastern British Columbia. Mo mineralization is hosted by variably-altered calc-alkaline granodiorite dikes. Quartz veins have been subdivided into a paragenetic sequence based on vein style and crosscutting relationships. Post-magmatic Pb-Zn-Ag-bearing veins crosscut Mo-bearing veins. Similarities in fluid chemistry from both vein types suggest a genetic link between porphyry Mo mineralization and base-metal veins. Three molybdenite samples were collected from early and late Mo-bearing veins for Re-Os dating to constrain the timing of Mo-mineralizing events within the paragenetic sequence. All three dates overlap within analytical error, and yield a weighted average age of 80.3 ± 0.2 Ma. These dates are in excellent agreement with two 206Pb/238U weighted-average ages of the Trout Lake stock at 80.2 ± 1.0 Ma and 80.9 ± 1.6 Ma, indicating that the magmatic and hydrothermal ore-forming events were coeval and cogenetic.

  • Subjects / Keywords
  • Graduation date
    2009-11
  • Type of Item
    Thesis
  • Degree
    Master of Science
  • DOI
    https://doi.org/10.7939/R3D59Q
  • License
    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
  • Language
    English
  • Institution
    University of Alberta
  • Degree level
    Master's
  • Department
    • Department of Earth and Atmospheric Sciences
  • Supervisor / co-supervisor and their department(s)
    • Richards, Jeremy ( Department of Earth and Atmospheric Science)
  • Examining committee members and their departments
    • Askari, Hooman (Mining Engineering, Civil & Electrical Engineering)
    • Richards, Jeremy (Department of Earth and Atmospheric Science)
    • Creaser, Robert (Department of Earth and Atmospheric Science)