@article{oai:nagoya.repo.nii.ac.jp:02001124, author = {NADMID, Bayart and TSUKADA, Kazuhiro and TAKEUCHI, Makoto}, journal = {名古屋大学博物館報告, Bulletin of the Nagoya University Museum}, month = {Mar}, note = {This study describes the geochemistry of basaltic blocks in the Daifugendake and Wasabidani complexes (Chichibu belt) and the Unokawa and Takaharagawa complexes (Shimanto belt) exposed in the Yoshino area of the central Kii Peninsula of Japan and discusses the tectonic implications. In this study, we examined 5 samples from the Chichibu belt and 10 samples from the Shimanto belt. The samples are divided into alkaline and tholeiitic basalts. Blocks in the Chichibu belt and the Takaharagawa complex of the Shimanto belt are determined to be alkaline basalts, and those in the Unokawa complex of the Shimanto belt are tholeiitic basalts. Alkaline and tholeiitic basalts have been recovered from the Chichibu and Shimanto belts throughout southwest Japan, respectively. Alkaline basalts in the Takaharagawa complex, which have never been described in the Shimanto belt, may imply that Chichibu belt components are involved into the Shimanto belt in the Yoshino area. It is possible that alkaline basalt derived from the Chichibu belt was mixed into a “shear zone” (the mélange unit) formed through thrust movement following accretion.}, pages = {35--51}, title = {Geochemistry of the basaltic blocks in the Jurassic and Cretaceous accretionary complexes in the Yoshino area, central Kii Peninsula, Southwest Japan}, volume = {36}, year = {2021} }