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廣島大學地學研究報告 Issue 12
published_at 1963-03-30
南関地域における玉名花崗閃緑岩の接触変成帯について
The Contact Aureole of the Tamana Granodiorite in the Nankan Region.
INOUE Tamotsu
Abstract
The studies of granitic rocks of Northern Kyushu have become advanced rapidly in the last few years. According to the results of the studies, granitic rocks of Northern Kyûshû are divided into the older and the newer granites, and further, the latter are subdivided into six rock bodies. The evolutional relations between them were described in detail by T. TOMITA and his collaborators. However, there are two granodiorites which are under discussion as to, to which rock group they belong. They are the Asakura granodiorite and the Tamana granodiorite. In this paper, the writer has no intention to describe the characters of the Tamana granodiorite itself, but its metamorphic behavior in detail. Fortunately, the metamorphic behavior of the Tamana granodiorite is very similar to that of the Asakura granodiorite, on which the writer reported in 1957. Therefore, the correlations between the metamorphic behaviors of the two granodiorites are discussed at the outset, and then, the contact aureole of the Tamana granodiorite is described in detail.
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