Yakymchuk, Chris; Brown, Caitlin R.; Brown, Michael; Smith Siddoway, Christine; Fanning, Christopher; Korhonen, Fawna J.
We report geochemical data from (meta-) sedimentary and igneous rocks that crop out in the Ford Ranges of western Marie Byrd Land and discuss the evolution and reworking of the crust in this region during Paleozoic subduction along the former Gondwanan convergent plate margin. Detrital zircon age spectra from the Swanson Formation, a widespread low-grade metaturbidite sequence, define distinct populations in the late Paleoproterozoic, late Mesoproterozoic, and Neoproterozoic-Cambrian. The late...[Show more]
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