(Table 2, page 155), Rare-earth element, Fe, Mn, Sr, and Rb elemental data, and Rb-Sr isotope data for the HCL-insoluble part (silicate) of Fe-Mn micronodules from the Alpha Ridge, Central Arctic Ocean ...

• Main Authors: Winter, Bryce L, Johnson, Clark M, Clark, David L
• Format: Dataset
• Language: English
• Published: PANGAEA 1997
• Subjects: Event label; Identification; DEPTH, sediment/rock; Cerium; Neodymium; Samarium; Europium; Gadolinium; Dysprosium; Erbium; Ytterbium; Strontium; Rubidium; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, error; Rubidium-87/Strontium-86 ratio; Gravity corer; CAMECA SX50 electron microprobe; Mass spectrometer VG Sector 54; CESAR; T-3; Sampling/drilling from ice; Sampling/drilling ice; NOAA and MMS Marine Minerals Geochemical Database NOAA-MMS; Arctic; Arctic Ocean; Alpha Ridge; alpha ridge
• Online Access: https://dx.doi.org/10.1594/pangaea.859276; https://doi.pangaea.de/10.1594/PANGAEA.859276

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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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. ...