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Joshima, Masato; Usui, Akira (1998): (Figure 8, page 60) Fe-Mn concentrations across ferromanganese crusts recovered from the Northwestern Pacific seamounts along the Izu-Bonin Trench. PANGAEA, https://doi.org/10.1594/PANGAEA.875153, In supplement to: Joshima, M; Usui, A (1998): Magnetostratigraphy of hydrogenetic manganese crusts from Northwestern Pacific seamounts. Marine Geology, 146(1-4), 53-62, https://doi.org/10.1016/S0025-3227(97)00131-X

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Coverage:
Median Latitude: 30.987500 * Median Longitude: 138.253084 * South-bound Latitude: 30.811667 * West-bound Longitude: 138.187167 * North-bound Latitude: 31.163333 * East-bound Longitude: 138.319000
Date/Time Start: 1995-06-01T00:00:00 * Date/Time End: 1995-06-01T00:00:00
Minimum Elevation: -3125.0 m * Maximum Elevation: -1940.0 m
Event(s):
MW9507-D18 * Latitude: 31.163333 * Longitude: 138.187167 * Date/Time: 1995-06-01T00:00:00 * Elevation: -3125.0 m * Location: Pacific Ocean * Campaign: MW9507 * Basis: Moana Wave * Method/Device: Dredge (DRG)
MW9507-D96 * Latitude: 30.811667 * Longitude: 138.319000 * Date/Time: 1995-06-01T00:00:00 * Elevation: -1940.0 m * Location: Pacific Ocean * Campaign: MW9507 * Basis: Moana Wave * Method/Device: Dredge (DRG)
Comment:
Values extracted from curves using the WebPlotDigitizer program (http://arohatgi.info/WebPlotDigitizer/).
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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.
Size:
156 data points

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