PANGAEA_870954 Annotated record of the detailed examination of fossil Mn nodules from Slovenia Ogorelec, S; Buser, S; Misic, M Annotated record of the detailed examination of fossil Mn nodules from Slovenia 2006 PANGAEA Dataset Supplement to: Ogorelec, S; Buser, S; Misic, M (2006): Manganese nodules in Jurassic limestone of the Southern Alps in Slovenia. http://www.dlib.si/details/URN:NBN:SI:doc-ARCRVUM8/, Geologija, 49(1), 69-84, https://doi.org/10.5474/geologija.2006.005 https://doi.pangaea.de/10.1594/PANGAEA.870954 Investigator S Ogorelec Earth Science Event label Latitude of event Longitude of event Elevation of event Identification Height Position Deposit type Quantity of deposit Size Sediment type Comment Description File name Uniform resource locator/link to image geoscientificInformation Begunjscica_O Bovski_Gamsovec_O Koritnica_O Luznica_O Ravni_Laz_O Slatenik_O Tiglav_O Visual description Complete 46.255129 46.418399 13.565138 14.231544 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 71 data points text/tab-separated-values Grant, John Bruce; Moore, Carla J; Alameddin, George; Chen, Kuiying; Barton, Mark (1992): The NOAA and MMS Marine Minerals Geochemical Database. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V52Z13FT Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V53X84KN

One of geological peculiarities in the Julian Alps is red pelagic limestone containing manganese nodules. They are encountered at several localities in the Bovec, Trenta and Krn area, occurring in some metres thick horizon of the Upper Liassic age. The nodule forms are disc-like attaining up to 12 cm in diameter. Mineral composition is characterized by pyrolusite, psilomelane, manganite and hausmannite. The shear of Mn in the nodules is low ranging from 0.8 % to 3.5 %. The Fe amount attains up to 1,7 %, in some samples, however, Fe exceeds Mn. At Mangart and at Begunjscica, Mn ore beds occur in a thinner horizon in a sequence of slate, radiolarite and crinoidal limestone. Herein, the amount of MnO reaches up to 60 %. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.870954"! ** 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.

https://doi.org/10.5474/geologija.2006.005 Manganese nodules in Jurassic limestone of the Southern Alps in Slovenia https://doi.org/10.7289/V52Z13FT The NOAA and MMS Marine Minerals Geochemical Database https://doi.org/10.7289/V53X84KN The NOAA and MMS Marine Minerals Bibliography https://wiki.pangaea.de/wiki/NOAA-MMS NOAA-MMS DIF 9.4 2026-04-30