Hund, Erik A.2014-03-142014-03-141987-07-05etd-11152013-040516http://hdl.handle.net/10919/45758New 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.vii, 83 leavesBTDapplication/pdfIn CopyrightLD5655.V855 1987.H863Granite -- North CarolinaZirconAppalachian Region, SouthernThesishttp://scholar.lib.vt.edu/theses/available/etd-11152013-040516/