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Haynes, Benjamin W; Law, Stephen L; Barron, David C (1982): Annotated record of the detailed examination of Pacific Ocean Mn deposits and chemical composition of layers inside a manganese nodule from the Gulf of California [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.879196, Supplement to: Haynes, BW et al. (1982): Mineralogical and elemental description of Pacific manganese nodules. Bureau of Mines, US Department of the Interior, Information Circular, 8906, 60 pp, https://archive.org/details/mineralogicalele00hayn

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Published: 1982 (exact date unknown)DOI registered: 2017-09-05

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Abstract:
The report is divided into three sections: morphology, mineralogy and elemental composition. The nodule morphology section defines what is considered a nodule for the study, and details the external characteristics and internal structure. Nodule mineralogy is discussed in three sections: manganese minerals, iron oxide minerals, and accessory minerals. The major manganese minerals discussed are todorokite, birnessite, and vernadite. The iron oxide minerals are less well known and include feroxyhyte, goethite, and lepidocrocite. Accessory minerals present include quartz, clays, and other silicates and nonsilicates. A discussion on moisture content is also included. The elemental composition section presents data on 74 elements occurring as cations or anions. Summary data, histograms, and interelement correlation coefficients are presented.
Source:
Grant, John Bruce; Moore, Carla J; Alameddin, George; Chen, Kuiying; Barton, Mark (1992): The NOAA and MMS Marine Minerals Geochemical Database. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V52Z13FT
Further details:
Unpolished section of nodule DH9-9. Numbered circles indicate locations of the 24 discrete sampling sites extracted for chemical analysis. Haynes_p60.jpg
Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V53X84KN
Coverage:
Median Latitude: 15.633030 * Median Longitude: -128.769740 * South-bound Latitude: -15.000000 * West-bound Longitude: 158.263000 * North-bound Latitude: 32.698000 * East-bound Longitude: -90.000000
Date/Time Start: 1970-01-01T00:00:00 * Date/Time End: 1976-10-01T00:00:00
Comment:
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.
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