Paleogeographic Reconstruction of the Paleozoic Lhasa Terrane Through Detrital Zircon Mixing Modeling

A late Mesoproterozoic detrital zircon (DZ) age population, which was previously considered diagnostic of a link between the Lhasa terrane and northwest Australia, occurs in other Gondwanan components, thus obscuring paleogeographic position Gondwana. Here we compiled large-n (n ≥ 300) DZ U-Pb data from potential source regions various proposed reconstructions, attempted to synthesize spectra through mixing modeling. Our modeling results support Permo-Carboniferous having received sediment NW Australia (mainly Perth basin) rather than India or Africa. This, combination with stratigraphic paleontological evidence northern margin eastern Gondwana positions Paleozoic adjacent boundary India. This study suggests that method based on can be used effectively for constraining reconstruction continents.