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Title Transcription
マツエシ ニ ブンプ スル カワツ アカイロ ネンド ニ ツイテ ヨサツ
Title Alternative
“Kawatsu Red Clay”distributed in Matsue City,Southwest Japan(Preliminary Report)
File
language
jpn
Author
Yamazaki, Chikako
Uno, Atsumi
Douzen, Kaori
Musashino, Makoto
Description
Red clay distributed in the northern Matsue City is a peculiar red(9 R 5/3-1 YR 4/3),and is characterized by higher Al_2O_3 contents(over 30 wt%)compared with normal soils.CIA(chemical index of alteration)values given by molar portions of Al/(Al+Na+Ca+K)x 100 are over 90,suggestive of significant weathering for the parent material.Although the color of this clay and CIA values are suggestive of dominant iron oxides or hydro-oxides.A possible parent material is alkaline basalt of the Matsue Formation,but chondrite-normalized REE patterns of the Kawastu red clay are characterized by relatively gentle inclination with negative Ce/Ce* and Eu/Eu* anomalies.The negative Ce* anomalie can result from explained REE alteration under reducing conditions.The Eu/Eu* negative anomalie can be explained by mixing of alkaline basalt and evolved material such as the Tertiary sediments which also occur in this district.
Journal Title
島根大学地球資源環境学研究報告
Volume
21
Start Page
41
End Page
47
ISSN
13439774
Published Date
2002-12-27
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
Department of Geoscience, Interdisciplinary Graduate School of Science and Engineering
Remark
12-14,16+ / 1993+
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