The Journal of the Geological Society of Japan
Online ISSN : 1349-9963
Print ISSN : 0016-7630
ISSN-L : 0016-7630
Birnessite, a manganese mineral:dark brown specks in sand and gravel layers of the Pleistocene Shimosa Group
Yoshihiro SAKAMOTOFujio MASUDA
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1989 Volume 95 Issue 11 Pages 873-876

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