Geology of Kasumi Rock, East Antarctica

• Main Authors: Nishida, Tamio, Yanai, Keizo, Kojima, Hideyasu
• Language: English
• Published: 1982
• Subjects: East Antarctica; Kasumi Rock; Prince Olav Coast; Antarc*; Antarctica; Memoirs of National Institute of Polar Research; Polar Research
• Online Access: https://nipr.repo.nii.ac.jp/record/1238/files/KJ00000011764.pdf

P(論文) Kasumi Rock is a small triangle of ice-free area on the middle course of the Prince Olav Coast, East Antarctica. The crystalline basement rocks of the area are classified into the following types; (1) biotite gneiss, (2) marble and skarn, (3) amphibolites, (4) garnet-biotite gneiss and (5) granitic gneiss and pink granite. Biotite gneiss is most widely distributed and granitic rocks of a subordinate amount are associated with it and other gneisses. A thin marble and skarn bed intercalated in the biotite gneiss in the lower portion of the sequence is traced well as a key bed. Towards the upper part of the sequence increase amphibolites. The sequence of the area is summed up less than 1000m in thickness. Stracturally the core of an antiform of a larger order named Kasumi Rock Antiform lies along the north coast of the area and the rest corresponds to the southern limb of this antiform. There the metamorphic rocks apparently homoclinally dip to the south with fairly steep angles. departmental bulletin paper