The Mount Wright Arc: A Cambrian subduction system developed on the continental margin of East Gondwana, Koonenberry Belt, eastern Australia

► The Mount Wright Volcanics represent a volcanic arc in a subduction setting. ► The subduction system faced northeast over a southwest-dipping subduction zone. ► the Mount Wright Arc developed in situ on the Gondwana Margin. ► The Delamerian Orogeny caused cessation of subduction and volcanism.