(Table XIV-1, Page 137-139) Physical characteristics of manganese nodules collected in the Pacific Ocean during cruise GH76-1 of R/V Hakurei Maru

Nodule samples obtained were described and studied on board for 1) observation of occurrence and morphology in and outside samplers, size classification, measurement of weight and calculation of population density (kg/m2); 2) photographing whole nodules on the plate marked with the frames of unit areas of both 0cean-70 (0.50 m2) and freefall grab (0.13 m2), and that of typical samples on the plate with a 5 cm grid scale: 3) observation of internal structures of the nodules on cut section; and 4) determination of mineral composition by X-ray diffractometer. The relation between nodule types and geological environment or chemical composition was examined by referring to other data of related studies, such as sedimentology. acoustic survey, and chemical analysis.

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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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: Moritani, Tomoyuki; Maruyama, Shuji; Nohara, M; Matsumoto, K; Ogitsu, T; Moriwaki, H (1977): Description, classification and distribution of manganese nodules. In: Mizuno, A (Ed) Deep sea mineral resources investigation in the central-eastern part of the central Pacific Basin, January-March, 1976 (GH76-1 Cruise), Geological Survey of Japan, Cruise Report, 136-158

Identifier
DOI https://doi.org/10.1594/PANGAEA.859861
PID https://hdl.handle.net/10013/epic.47743.d004
Related Identifier https://www.gsj.jp/data/cruise-rep/08-14.pdf
Related Identifier https://doi.org/10.7289/V52Z13FT
Related Identifier https://hdl.handle.net/10013/epic.47743.d005
Related Identifier https://hdl.handle.net/10013/epic.47743.d006
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.859861
Provenance
Creator Moritani, Tomoyuki; Maruyama, Shuji; Nohara, Masato; Matsumoto, K; Ogitsu, T; Moriwaki, H
Publisher PANGAEA
Publication Year 1977
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Language English
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 637 data points
Discipline Earth System Research
Spatial Coverage (-174.038W, 4.960S, -169.985E, 10.013N); Pacific Ocean
Temporal Coverage Begin 1976-01-25T00:00:00Z
Temporal Coverage End 1976-02-29T00:00:00Z