Annotated record of the detailed examination of Mn deposits from C.S.S. Hudson Cruise 19 (1967) stations ...

• Main Authors: Aumento, Fabrizio, Lawrence, D E, Plant, A G
• Format: Dataset
• Language: English
• Published: PANGAEA 1968
• Subjects: Sample ID; Latitude of event; Longitude of event; Elevation of event; DEPTH, sediment/rock; Position; Deposit type; Quantity of deposit; Size; Dredge; HUD67/19; Hudson; NOAA and MMS Marine Minerals Geochemical Database NOAA-MMS; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.862565; https://doi.pangaea.de/10.1594/PANGAEA.862565

The Bedford Institute of Oceanography provided ship time on the C.S.S. Hudson during the B.I.0. 1967 Metrology and IODAL Cruise for surveying two separate bottom features in the North Atlantic; the Flemish Cap and the San Pablo Seamount one of the Kelvin Seamounts (also known as the New England Seamounts) about 400 miles SSE of Halifax, Nova Scotia. Underwater photography, dredging, and drilling showed San Pablo seamount to have a very considerable covering of manganese deposit, which may be recoverable by mining. San Pablo Seamount was surveyed and sampled; good hauls were made both on the top and on the slopes, at various depths from 500-1000 fathoms; in all cases samples of an unusual stratified manganese-iron ore were recovered. In the hope of gaining additional information in the immediate sample area, one of the dredges had been previously modified to accommodate underwater photographic equipment. X-ray chemical analyses indicate that the ore contains 20 to 25 per cent MnO2, with similar amounts of ... : 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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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. ...