Early Permian strike-slip basin formation and felsic volcanism in the Manning Group, southern New England Orogen, eastern Australia

摘要: AbstractThe Manning Group is characterised by rapidly filled strike-slip basins that developed during the early Permian along Peel--Manning Fault System in southern New England Orogen. Typically, has been difficult to date owing lack of fossiliferous units or igneous rocks. Thus, timing transition from an accretionary convergent margin late Carboniferous dominantly tectonic regimes involved development and emplacement Great Serpentinite Belt (Weraerai terrane) not well constrained. One exception are rhyolites Ramleh Volcanics were erupted into Echo Hills Formation. These dextral Monkey Creek splay east System. Zircons extracted yield a U–Pb (SHRIMP) age 295.6 ± 4.6 Ma constrains minimum deposition this basin earliest Permian. Whole-rock geochemistry indicates these peraluminous felsic melts enriched LREE ...