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    U-Pb dating of granites from the Charlotte belt of the southern Appalachians

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    LD5655.V855_1987.H863.pdf (28.54Mb)
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    Date
    1987-07-05
    Author
    Hund, Erik A.
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    Abstract
    New U-Pb zircon ages from plutons in the Charlotte belt of the southern Appalachians have provided evidence of Cambro-Ordovician and Siluro-Devonian magmatic activity. Several U-Pb zircon ages of Cambro-Ordovician plutons predate their Rb-Sr whole rock ages by as much as 60 m.y., suggesting a post emplacement disturbance of the Rb-Sr isotopic systems. Comparison of geologic setting, chemistry, and temporal and spatial distribution of Charlotte belt Siluro-Devonian plutons with those of other tectonic environments, specifically plutons from tensional environments, suggests a model for strike-slip accretion.
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    http://hdl.handle.net/10919/45758
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    • Masters Theses [21063]

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