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Title Transcription
シマネ ケンナイ ニオケル ミリヨウ サイセキ ノ ユウコウ カツヨウ ノ チシツガクテキ ケントウ : ハマダシ ミスミコウサン サイセキジョウ ノ リュウモンガン ノ レイ ヨホウ
Title Alternative (English)
Geologic examination of utility of waste material occurring with construction stone in Shimane Prefecture Japan : A case study of rhyolite from the Misumi Kosan Co. Ltd. Quarry, Hamadacity (Preliminary Report)
File
language
jpn
Author
Sano, Erika
Shimizu, Yuya
Shimada, Katsuhiro
Ago, Kunio
Description
 Rhyolite occurs in hornfelsed Sangun metamorphic rocks in the Misumi Kosan Co. Ltd. quarry in Shimokowa, Misumi town, Shimane Prefecture, Japan. Rhyolites in this area have not been used as construction stones because they are fragile compared to the dark hornfels which are the major resource of this quarry. Rhyolite, however, is widely used in Japan as a glaze for pottery. The Shimokowa rhyolite commonly contains pyrite grains produced by later hydrothermal activity. Iron concentrations (total Fe as Fe2O3) of the rhyolite from the Misumi Kosan quarry reach 5.02 wt%. After removal of pyrite grains, powdered rhyolite from the quarry contains only trace levels of iron and sulfur. The rhyolite can then be utilized as glaze powder. The mode of occurrence of rhyolite in the quarry and the geologic feature of the surrounding area are reported in this paper. Hornfelsed pelitic schists are widely distributed in the study area, and contain intercalated lenticular bodies of psammitic schist. Schistosity can be observed in the psammitic schist in the northern part, showing EW trend and gentle dip toward the north. The trends in the southern part of the study area are not concordant with this schistosity, and were deformed by faults. NE-SW trending rhyolites intrude the hornfels in many places in this area.
Journal Title
島根大学地球資源環境学研究報告
Volume
28
Start Page
73
End Page
76
ISSN
13439774
Published Date
2009-12-25
NCID
AA11455176
Publisher
島根大学総合理工学部地球資源環境学教室
Publisher Aalternative
Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Interdisciplinary Graduate School of Science and Engineering
Remark
12-14,16+ / 1993+
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