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Geochronological And Geochemical Constraints On The Origin Of The Cartoogechaye Terrane, Western North Carolina: Implications For The Late Precambrian To Early Paleozoic Evolution Of The Eastern Laurentian Margin, Kevin B. Walsh Jr.

Theses and Dissertations--Earth and Environmental Sciences

The Cartoogechaye terrane (CT) is an enigmatic migmatite terrane within the Central Blue Ridge province of the southern Appalachians. Previous work identified exotic Pb isotope compositions within the CT (Quinn, 2012). More recent studies that mapped the extent of potentially exotic metaigneous lithologies yield U-Pb zircon ages consistent with a native Laurentian margin metasedimentary origin (Larkin, 2016). This study focused on the possible extent of similar lithologies in the Clyde quadrangle and provides further constraints on the crustal affinity of the CT. The Clyde quadrangle consists of four distinct lithologic packages: the CT, Ashe metamorphic suite, Great Smoky Group, and …