Bloch, Salman (1981): (Tables 1-2) Chemical composition of basal metalliferous sediments at DSDP Site 9-81 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.705171, In supplement to: Bloch, S (1981): Antipathetic magnesium-manganese relationship in basal metalliferous sediments. Chemical Geology, 33(1-2), 101-113, https://doi.org/10.1016/0009-2541(81)90088-7
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Further details:
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
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 1.441500 * Longitude: -113.809000
Date/Time Start: 1970-01-08T00:00:00 * Date/Time End: 1970-01-08T00:00:00
Minimum DEPTH, sediment/rock: 406.2 m * Maximum DEPTH, sediment/rock: 408.3 m
Event(s):
9-81 * Latitude: 1.441500 * Longitude: -113.809000 * Date/Time: 1970-01-08T00:00:00 * Elevation: -3865.0 m * Penetration: 409.3 m * Recovery: 38.4 m * Location: North Pacific/HILL * Campaign: Leg9 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 7 cores; 39.7 m cored; 0 m drilled; 96.7 % recovery
Comment:
Samples were divided into three aliquots. The first aliquot was leached with an excess of 1 M acetic acid to remove calcium carbonate. CaCO3 contents of each sample were determined by analysis of these leach solutions for Ca by AAS. The second aliquot consisting of bulk sediment was analyzed for Mg by the standard additions technique of AAS. The third aliquot of each sample was attacked with a mixed acid-reducing agent [1 M hydroxylamine-HCl and 25% (v/v) acetic acid] following the procedure of Chester and Hughes (1967, doi:10.1016/0009-2541(67)90025-3). Data for CaCO3 contents are given for dry bulk sediments; other data are given on a carbonate-free basis. Unlike Fe and Mn, the Mg present in CaCO3 was found to make up a relatively significant part of the overall content of this element in the bulk sample. Therefore Mg concentration in the calcium carbonate fraction was subtracted from the total Mg content prior to the CFB calculation.
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:
22 data points
Data
| 1 Depth sed [m] | 2 Sample label (DSDP/ODP/IODP sample designation) | 3 CaCO3 [%] (Atomic absorption spectrometr...) | 4 Fe [%] (X-ray fluorescence (XRF)) | 5 Mn [%] (X-ray fluorescence (XRF)) | 6 Mg [%] (Atomic absorption spectrometr...) | 7 Si [%] (X-ray fluorescence (XRF)) | 8 Al [%] (X-ray fluorescence (XRF)) | 9 Fe frac [%] (oxide-associated (extracted b...) | 10 Fe frac [%] (silicate-associated (insolubl...) | 11 Mn frac [%] (oxide-associated (extracted b...) | 12 Mn frac [%] (silicate-associated (insolubl...) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 406.2 | 9-81-6-3, 49-50 | 59 | 8.23 | 0.75 | 3.82 | 19.80 | 1.18 | 3.41 | 4.82 | 0.74 | 0.01 |
| 408.3 | 9-81-7-1, 0-2 | 67 | 10.21 | 2.52 | 3.23 | 18.80 | 1.57 | 3.21 | 7.00 | 2.37 | 0.15 |