Citation:

PANGAEA.961649

Name: Chemical composition of manganese nodules from cruise KH-84-1 (R/V Hakuho-Maru)
Published: 2023-08-21
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Geochemistry; manganese micronodule; manganese nodule; ocean; sediment

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Published: 2023-08-21 • DOI registered: 2023-09-26

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Abstract:

Preliminary results of chemical analysis of thirteen ferro-manganese nodules dredged from the Mariana and Ogasawara regions via the KH-84-1 cruise are presented. Five Mn nodule samples from the stations of 16, 19, 23 and 25 in and around the Mariana Trough and seven Mn nodules at stations 2, 3, 5, 8 and 27 in the Ogasawara Plateau were selected for chemical analyses. Ferromanganese oxide crusts were separated from Mn nodules and were soaked into the distilled water for two days. After drying at 110°C for 12 hours, they were powdered in an agate mortar. About 500 mgr of each sample was dissolved in the mixture of dilute nitric acid and dilute hydrogen peroxide. After removing silicate residue by filtering, the solution was proceeded for induced coupled plasma (ICP) analysis at Tsukuba University. Abundances of rare earth elements (REE) and several trace elements were also determined by instrumental neutron activation analysis (INAA).

Keyword(s):

Geochemistry; manganese micronodule; manganese nodule; ocean; sediment

Related to:

Kobayashi, Kazuo (1985): Kobayashi, K. (Ed.), Preliminary Report of the Hakuho Maru Cruise KH84-1, April 16-May 30, 1984 (Geological and Geophysical Investigations of Seafloor East of Ogasawara (Bonin) Islands, Northern Mariana Trough, Southern Mariana, Yap and Palau Trench and Arcs). University of Tokyo, Ocean Research Institute, 311 pp, KH-84-1.pdf

Toyoda, K; Nakamura, Yuto; Sano, Yuji; Wakita, Hiroshi (1985): Chemical composition of Mn nodules from Ogasawara and Mariana region,. in: Kobayashi, K. (Ed.), Preliminary Report of the Hakuho Maru Cruise KH84-1, April 16-May 30, 1984 (Geological and Geophysical Investigations of Seafloor East of Ogasawara (Bonin) Islands, Northern Mariana Trough, Southern Mariana, Yap and Palau Trench and Arcs). University of Tokyo, Ocean Research Institute, 240-244

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: 23.465407 * Median Longitude: 143.759963 * South-bound Latitude: 20.135000 * West-bound Longitude: 142.533000 * North-bound Latitude: 26.267000 * East-bound Longitude: 144.317000

Date/Time Start: 1984-04-18T00:00:00 * Date/Time End: 1984-05-24T00:00:00

Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m

Event(s):

KH84-1-2D (KOBAKA8501_1_2) * Latitude: 26.267000 * Longitude: 142.967000 * Date/Time: 1984-04-18T00:00:00 * Elevation: -1430.0 m * Location: Pacific Ocean * Campaign: (KOBAKA8501,WESTPAC) * Basis: Hakuho-Maru * Method/Device: Dredge (DRG)

KH84-1-3D (KOBAKA8501_1_3) * Latitude: 26.083000 * Longitude: 144.317000 * Date/Time: 1984-04-19T00:00:00 * Elevation: -1050.0 m * Location: Pacific Ocean * Campaign: (KOBAKA8501,WESTPAC) * Basis: Hakuho-Maru * Method/Device: Dredge (DRG)

KH84-1-5D (KOBAKA8501_1_5) * Latitude: 26.217000 * Longitude: 144.083000 * Date/Time: 1984-04-19T00:00:00 * Elevation: -2430.0 m * Location: Pacific Ocean * Campaign: (KOBAKA8501,WESTPAC) * Basis: Hakuho-Maru * Method/Device: Dredge (DRG)

Comment:

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.

This dataset represents the digitized Tables 7-12-1 and 7-12-2, pp. 242-243 of the related publication.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Latitude of event	Latitude
3	Longitude of event	Longitude
4	Elevation of event	Elevation	m
5	Identification	ID		Toyoda, K
6	Deposit type	Deposit type		Toyoda, K
7	DEPTH, sediment/rock	Depth sed	m	Toyoda, K		Geocode
8	Manganese	Mn	%	Toyoda, K	Induced coupled plasma
9	Iron	Fe	%	Toyoda, K	Induced coupled plasma
10	Sodium	Na	%	Toyoda, K	Induced coupled plasma
11	Potassium	K	%	Toyoda, K	Induced coupled plasma
12	Calcium	Ca	%	Toyoda, K	Induced coupled plasma
13	Magnesium	Mg	%	Toyoda, K	Induced coupled plasma
14	Titanium	Ti	%	Toyoda, K	Induced coupled plasma
15	Strontium	Sr	mg/kg	Toyoda, K	Induced coupled plasma
16	Lanthanum	La	mg/kg	Toyoda, K	Induced coupled plasma
17	Yttrium	Y	mg/kg	Toyoda, K	Induced coupled plasma
18	Vanadium	V	mg/kg	Toyoda, K	Induced coupled plasma
19	Cobalt	Co	mg/kg	Toyoda, K	Induced coupled plasma
20	Nickel	Ni	mg/kg	Toyoda, K	Induced coupled plasma
21	Copper	Cu	mg/kg	Toyoda, K	Induced coupled plasma
22	Zinc	Zn	mg/kg	Toyoda, K	Induced coupled plasma
23	Molybdenum	Mo	mg/kg	Toyoda, K	Induced coupled plasma
24	Cerium	Ce	mg/kg	Toyoda, K	Instrumental neutron activation analysis (INAA)
25	Neodymium	Nd	mg/kg	Toyoda, K	Instrumental neutron activation analysis (INAA)
26	Samarium	Sm	mg/kg	Toyoda, K	Instrumental neutron activation analysis (INAA)
27	Europium	Eu	mg/kg	Toyoda, K	Instrumental neutron activation analysis (INAA)
28	Terbium	Tb	mg/kg	Toyoda, K	Instrumental neutron activation analysis (INAA)
29	Ytterbium	Yb	mg/kg	Toyoda, K	Instrumental neutron activation analysis (INAA)
30	Lutetium	Lu	mg/kg	Toyoda, K	Instrumental neutron activation analysis (INAA)
31	Barium	Ba	mg/kg	Toyoda, K	Instrumental neutron activation analysis (INAA)
32	Hafnium	Hf	mg/kg	Toyoda, K	Instrumental neutron activation analysis (INAA)
33	Scandium	Sc	mg/kg	Toyoda, K	Instrumental neutron activation analysis (INAA)
34	Arsenic	As	mg/kg	Toyoda, K	Instrumental neutron activation analysis (INAA)
35	Antimony	Sb	mg/kg	Toyoda, K	Instrumental neutron activation analysis (INAA)
36	Tungsten	W	mg/kg	Toyoda, K	Instrumental neutron activation analysis (INAA)
37	Thorium	Th	mg/kg	Toyoda, K	Instrumental neutron activation analysis (INAA)