Abstract

Xenoliths included within Ichifusayama granite can be classified genetically into epixenolith (e. g., biotite schistose rock) and basic hypoxenolith (ec g., diabasic and or dioritic rocks) from various field and petrographical evidences. It is sufficiently clear that the granite has been contaminated with both of sedimentary and basic igneous rocks. The contamination behaviour in Ichifusayama granite is quite similar with those in Owase and Tanohata granites which are considered to have suffered contamination with some basic rocks. Accordingly, it is reasonable to consider that the granite, especially Ikenomoto type, has been more dominantly contaminated with basic rock rather than pelitic rock.

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