Two Paleozoic ophiolites, the Ordovician Oeyama and Permian Yakuno ophiolites, juxtaposed in the inner zone of southwestern Japan, record the tectonic evolution of the proto‐East Asian continental margin during the Paleozoic. The Oura plutonic complex, located in the northern part of Maizuru City, Kyoto Prefecture, consists mainly of mafic to ultramafic rocks with minor amounts of intermediate intrusive rocks. Despite its key...