Petrography and geochemistry for mafic and ultramafic rocks from Tonagh Island in the Napier Complex, East Antarctica: A preliminary report

• Main Authors: Owada, Masaaki, Osanai, Yasuhito, Toyoshima, Tsuyoshi, Tunogae, Toshiaki, Hokada, Tomokazu, Crowe, Warwick A.
• Language: English
• Published: National Institute of Polar Research 1999
• Subjects: Napier Complex; Tonagh Island; Archaean; geochemistry; komatiitic rock; East Antarctica; Napier; Antarc*; Antarctica; Polar geoscience
• Online Access: https://nipr.repo.nii.ac.jp/record/3044/files/KJ00000044161.pdf; https://doi.org/10.15094/00003044; https://nipr.repo.nii.ac.jp/records/3044

P(論文) The geology of Tonagh Island is divided into five geological units. The boundaries among the units are thrusts or shear zones. Tonagh Island is dominated by mafic to felsic layered gneisses. Metamorphosed ultramafic rocks are locally exposed. The dolerite dykes cut the host gneiss and the shea...