PANGAEA_860452 (Table 3, Page 616) Microprobe Analyses of Birnessite from Nodules on East Seamount Lonsdale, Peter; Burns, Virginia Mee; Fisk, Mary B (Table 3, Page 616) Microprobe Analyses of Birnessite from Nodules on East Seamount 1980 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.860452 Investigator Peter Lonsdale Earth Science Identification DEPTH, sediment/rock Manganese dioxide Sodium oxide Magnesium oxide Silicon dioxide Potassium oxide Calcium oxide Iron oxide, Fe2O3 Cobalt oxide Copper(II) oxide Nickel oxide Description geoscientificInformation Dredge Indomed_leg_1 INMD-1D MAC microprobe analysis Melville 1977-10-15 1977-10-15 Complete 8.79833 8.79833 -103.89333 -103.89333 0.0 m (DEPTH, sediment/rock) 0.0 m (DEPTH, sediment/rock) NOAA-MMS NOAA and MMS Marine Minerals Geochemical Database unrestricted CC-BY-3.0: Creative Commons Attribution 3.0 Unported English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 36 data points text/tab-separated-values Lonsdale, Peter; Burns, Virginia Mee; Fisk, Mary B (1980): Nodules of Hydrothermal Birnessite in the Caldera of a Young Seamount on JSTOR. The Journal of Geology, 88(5), 611-618, http://www.jstor.org/stable/30066087

For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.860452"! ** 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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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.

http://www.jstor.org/stable/30066087 Nodules of Hydrothermal Birnessite in the Caldera of a Young Seamount on JSTOR https://en.wikipedia.org/wiki/Calcium_oxide Calcium oxide https://en.wikipedia.org/wiki/Silicon_dioxide Silicon dioxide https://wiki.pangaea.de/wiki/NOAA-MMS NOAA-MMS PANGAEA_860453 DIF 9.4 2026-04-30