An extremely large manganese encrusted rock (allegedly called, manganese nodule) inadvertently retrieved by the USGC PONTCHARTRAIN (WHEC-70) during a deep Nansen cast on Ocean Station NOVEMBER in 3749 meters of water in September 1967. This specimen, weighing approximately 240 Kg., was entangled in the oceanographic cable which was accidentally laid on the bottom. Scientists from the Scripps Institution of Oceanography subsequently identified the rock as probably the largest manganese nodule ever found. At that time, the term "manganese nodule" was still used to describe any deepsea recovery of a manganese surfaced object as in the case of the famous "Horizon" nodule (NTHL-10 at https://doi.pangaea.de/10.1594/PANGAEA.854965) which revealed to be a large slab of altered volcanics (clayey palagonite) covered with a thick manganese crust.

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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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: Husby, David M (1969): Oceanographic observations: North Pacific Ocean Station November, 3000 N., 14000 W., March 1967-March 1968. United States Coast Guard Oceanographic Report, CG 373-26