Chemical assays of samples from Gosnold 74 Cruise, U.S.G.S.-Woods Hole Oceanographic Institution

The Blake Plateau ferromanganese samples were obtained during the USGS GOS74 Expedition in 1965. Most of them are related to a phosphorite substrate. Samples were ground and subsequently sieved to <105 micons. Water loss was determined after heating the powder at 500°C for one hour. Mn, Fe, P, Co, Cu, Mo, Ni are determined by ICP (Inductively Coupled Plasma) Spectroscopy after separation following a disgestion in HNO3-HCl-HF solution.

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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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.This dataset represents the digitized Table 2a, pp. 27 of the related publication.

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Metadata Access
Creator Manheim, Frank T ORCID logo; Popenoe, P; Lane, C
Publisher PANGAEA
Contributor Aruscavage, P J
Publication Year 2024
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 204 data points
Discipline Chemistry; Natural Sciences
Spatial Coverage (-79.125W, 30.517S, -77.333E, 31.908N); Blake Plateau, Atlantic Ocean
Temporal Coverage Begin 1965-08-19T00:00:00Z
Temporal Coverage End 1965-09-18T00:00:00Z