Prescott, D M (1988): (Table 1, page 399) Average compositions of black ferromanganese crusts, brown pisolith coating and other iron-stained clasts and pisoliths from Toarcian hardgrounds on Mallorca [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.873841, In supplement to: Prescott, DM (1988): The geochemistry and palaeoenvironmental significance of iron pisoliths and ferromanganese crusts from the Jurassic of Mallorca, Spain. Eclogae Geologicae Helvetiae, 81(2), 387-414, https://doi.org/10.5169/seals-166185
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Published: 1988 (exact date unknown) • DOI registered: 2017-04-19
Project(s):
Coverage:
Median Latitude: 39.684282 * Median Longitude: 2.942796 * South-bound Latitude: 39.506780 * West-bound Longitude: 2.433339 * North-bound Latitude: 39.820573 * East-bound Longitude: 3.409720
Minimum DEPTH, sediment/rock: 40 m * Maximum DEPTH, sediment/rock: 1180 m
Event(s):
Comment:
Analyses performed on carbon-coated polished thin sections of samples using a Cambridge Instruments Microscan 9 electron probe microanalyser.
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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.
Parameter(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
262 data points