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Aplin, Andrew C; Cronan, David S (2022): Chemical composition of manganese crusts along the Line Islands archipelago for major and trace elements [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.945241

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Published: 2022-06-09 • DOI registered: 2022-07-16

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Abstract:
Thirty Mn crust samples and associated substrates were taken from dredge hauls collected at 16 sites by the Hawaii Institute of Geophysics. They are located along the Line Islands Archipelago between 15°S and 17°N, and from depths between 1150 and 4700 m. Prior to analysis, samples of both crusts and substrates were finely ground and dried over silica gel at room temperature. Following digestion in a mixture of hydrotluoric, nitric and perchloric acids, final solutions were made up in 1 M HCl and anaiysed for Mn, Fe, Ca, Al, Ti, Cu, Ni. Co, Pb and Zn on a Perkin Elmer 5000 atomic absorption spectrophotometer. Most samples were analysed in duplicate. On the basis of replicate analyses and comparison with international nodule standards (analysis by AAS), precisions for all elements were better than 4% and accuracies better than 10% for al1 elements except Al (15%). Foliowing the same procedures, samples were further analysed by inductively coupled plasma spectrophotometry for Be, Sr. Mo, V and Cd in addition to the ten elements analysed for by AAS. Whilst the precision of these analyses was excellent (better than 2%), abundances of some elements were depressed by up to 20% on ICPS with respect to AAS, probably as a result of enhanced rotational interference.
Keyword(s):
Geochemistry; manganese micronodule; manganese nodule; ocean; sediment
Related to:
Aplin, Andrew C; Cronan, David S (1985): Ferromanganese oxide deposits from the Central Pacific Ocean, I. Encrustations from the Line Islands Archipelago. Geochimica et Cosmochimica Acta, 49(2), 427-436, https://doi.org/10.1016/0016-7037(85)90034-1
Source:
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
Further details:
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):
NOAA and MMS Marine Minerals Geochemical Database (NOAA-MMS)
Coverage:
Median Latitude: 2.580800 * Median Longitude: -159.176736 * South-bound Latitude: -15.013300 * West-bound Longitude: -168.146000 * North-bound Latitude: 16.435830 * East-bound Longitude: -147.928333
Date/Time Start: 1979-08-20T00:00:00 * Date/Time End: 1979-11-15T00:00:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
KK790808-1-RD45 (STA125) * Latitude: -9.063680 * Longitude: -150.693800 * Date/Time: 1979-08-28T00:00:00 * Elevation: -1450.0 m * Recovery: 500 kg * Location: Pacific Ocean * Campaign: KK790808 * Basis: Kana Keoki * Method/Device: Dredge (DRG)
KK790808-1-RD50 (STA129) * Latitude: -11.051400 * Longitude: -152.097300 * Date/Time: 1979-08-31T00:00:00 * Elevation: -4400.0 m * Recovery: 175 kg * Location: Pacific Ocean * Campaign: KK790808 * Basis: Kana Keoki * Method/Device: Dredge (DRG)
KK790808-2-RD52 (STA131) * Latitude: -15.013300 * Longitude: -149.035000 * Date/Time: 1979-09-07T00:00:00 * Elevation: -3400.0 m * Recovery: 180 kg * Location: Pacific Ocean * Campaign: KK790808 * Basis: Kana Keoki * Method/Device: Dredge (DRG)
Comment:
This table was digitized from the publication's Appendix, p. 436.
--
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):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventAplin, Andrew C
2Latitude of eventLatitudeAplin, Andrew C
3Longitude of eventLongitudeAplin, Andrew C
4Elevation of eventElevationmAplin, Andrew C
5IdentificationIDAplin, Andrew C
6DEPTH, sediment/rockDepth sedmAplin, Andrew CGeocode
7ManganeseMn%Aplin, Andrew CAtomic absorption spectrophotometry
8IronFe%Aplin, Andrew CAtomic absorption spectrophotometry
9CalciumCa%Aplin, Andrew CAtomic absorption spectrophotometry
10AluminiumAl%Aplin, Andrew CAtomic absorption spectrophotometry
11TitaniumTimg/kgAplin, Andrew CAtomic absorption spectrophotometry
12CopperCumg/kgAplin, Andrew CAtomic absorption spectrophotometry
13NickelNimg/kgAplin, Andrew CAtomic absorption spectrophotometry
14LeadPbmg/kgAplin, Andrew CAtomic absorption spectrophotometry
15ZincZnmg/kgAplin, Andrew CAtomic absorption spectrophotometry
16MolybdenumMomg/kgAplin, Andrew CInductively coupled plasma spectrophotometry
17VanadiumVmg/kgAplin, Andrew CInductively coupled plasma spectrophotometry
18CobaltComg/kgAplin, Andrew CInductively coupled plasma spectrophotometry
19StrontiumSrmg/kgAplin, Andrew CInductively coupled plasma spectrophotometry
20CadmiumCdmg/kgAplin, Andrew CInductively coupled plasma spectrophotometry
21BerylliumBemg/kgAplin, Andrew CInductively coupled plasma spectrophotometry
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
944 data points

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