Ebbing, J; van der Borg, Klaas; de Jong, Arie F M; Nederlof, H P (1991): (Table 4, page 80) Element composition versus depth inside sediment cores taken from the Madeira Abyssal Plain [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.888581, In supplement to: Ebbing, J et al. (1991): Continuous surface dwelling of manganese nodules on a hill on the Madeira Abyssal Plain during abrupt sedimentation changes. Marine Geology, 98(1), 73-82, https://doi.org/10.1016/0025-3227(91)90036-4
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Published: 1991 (exact date unknown) • DOI registered: 2018-05-16
Project(s):
Coverage:
Median Latitude: 31.455830 * Median Longitude: -25.296665 * South-bound Latitude: 31.411660 * West-bound Longitude: -25.300000 * North-bound Latitude: 31.500000 * East-bound Longitude: -25.293330
Date/Time Start: 1986-10-01T00:00:00 * Date/Time End: 1986-10-01T00:00:00
Minimum DEPTH, sediment/rock: 0.025 m * Maximum DEPTH, sediment/rock: 1.075 m
Event(s):
T86-B12 (86B12) * Latitude: 31.411660 * Longitude: -25.293330 * Elevation: -5258.0 m * Location: Atlantic Ocean * Campaign: APNAP1 * Basis: Tyro * Method/Device: Box corer (BC)
T86-P14 (86PCM14) * Latitude: 31.500000 * Longitude: -25.300000 * Date/Time: 1986-10-01T00:00:00 * Elevation: -5300.0 m * Recovery: 8.3 * Location: Atlantic Ocean * Campaign: APNAP1 * Basis: Tyro * Method/Device: Piston corer (PC)
Comment:
Before analysis the samples were digested in HF and evaporated from a HClO4-HNO 3 mixture. The residue was dissolved in 50 ml of 1N HCl.
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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:
760 data points