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    Petrography of the Suflide Ore Zones in the Lynne Zn-Cu-Pb Deposit, Oneida Co., Wisconsin

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    WeberSpr21.pdf (6.626Mb)
    Date
    2021-04
    Author
    Weber, Evan
    Lodge, Robert W.D.
    Metadata
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    Abstract
    This study examines the sulfide mineralization of three of the ore zones within in the Lynne Zn-Cu-Pb deposit to determine how the mineralizing hydrothermal system formed and evolved over time. These sulfide mineral ores were formed in a volcanic massive sulfide (VMS) that are formed through hydrothermal vents in submarine environments. The Lynne deposit is in northern Wisconsin near Rhinelander, and it is part of the 1.8-1.9-billion-year-old Pembine-Wausau terrane. The Lynne deposit was discovered by Noranda Exploration in 1990 and consists of mainly zinc, copper, and lead sulfides. Drill core obtained during mineral exploration efforts in 1990-91 were re-logged and, their ore zones were described in detail. Samples collected from these cores were cut into thin sections for reflected-light petrography. These thin sections were also analyzed on a scanning electron microscope to obtain mineral chemistry data and identify sub-microscopic minerals that are more sensitive to fluid conditions than traditional Zn-Cu-Pb sulfides. This project illustrates the mineralogical characteristics that makes the Lynne deposit unique when compared to other VMS deposits in Wisconsin.
    Subject
    Volcanogenic massive sulfide (VMS)
    Geochemistry
    Oneida County (Wis.)
    Petrography
    Sulfide mine
    Posters
    Department of Geology
    Permanent Link
    http://digital.library.wisc.edu/1793/83479
    Type
    Presentation
    Description
    Color poster with text, images, charts, and graphs.
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