(Page 290) Composition of a manganese deposit sample from the Todoroki Mine, Japan


The Todoroki Mine is situated about 25 kilometers to the south-east of Ginzan railway station in Siribesi Province, Hokkaido. The author analysed an interesting specimen of black manganese-ore which had a fractured surface which looked like that of a broken piece of wood. This new manganese mineral was studied in its form, physical properties and chemical composition. The author later named this mineral form as "todorokite".

From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.

Supplement to: Yoshimura, T (1934): Todorokite, a new manganese mineral from the Todoroki mine, Hokkaido, Japan. Journal of the Faculty of Science of the Hokkaido Imperial University, 2, 289-297

DOI https://doi.org/10.1594/PANGAEA.866905
Related Identifier https://rruff.info/uploads/JFSHIUS4GM2_289.pdf
Related Identifier https://doi.org/10.7289/V52Z13FT
Related Identifier https://doi.org/10.7289/V53X84KN
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.866905
Creator Yoshimura, T ORCID logo
Publisher PANGAEA
Publication Year 1934
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 20 data points
Discipline Chemistry; Natural Sciences
Spatial Coverage (140.886 LON, 43.011 LAT); Japan