Citation:

PANGAEA.961694

Name: Chemical composition of manganese nodules from GH80-1 cruise
Published: 2023-08-23
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Geochemistry; manganese micronodule; manganese nodule; ocean; sediment

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Published: 2023-08-23 • DOI registered: 2023-09-26

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Abstract:

67 samples of manganese nodules were obtained during the GH79-1 Cruise of R/V Hakurei Maru in the northern part of the Central Pacific Basin. All nodules were immersed in running water and then ion-free water. After air-dried, samples were ground to under 150 mesh. The ground samples were encased in small paper bags, dried at 20-25°C for 24 hours, and then kept in a desiccator. In most cases an analysis was done for mixed ground sample of two or three different size classes of nodules from each box corer or freefall grab. Mn, Fe, Ni, Cu, Co. Pb, and Zn were determined by atomic absorption spectrometry. Each sample of 0.1 g was decomposed with a mixture of 5 ml of hydrochloric acid and 5 ml of nitric acid in a covered 50 ml beaker on a boiling water bath for about 30 minutes. After cooling, the solution was filtered into a 100 ml calibrated flask and diluted to the mark with water. The atomic absorbance of each element in the sample solution was measured using an atomic absorption spectrometer using an air-acetylene flame.

Keyword(s):

Geochemistry; manganese micronodule; manganese nodule; ocean; sediment

Related to:

Mizuno, Atsuyuki; Nakao, Seizo (1982): Regional Data of Marine Geology, Geophysics, and Manganese Nodules: the Wake-Tahiti Transect in the Central Pacific, January – March 1980 (GH80-1 Cruise). Geological Survey of Japan, 399 pp, https://www.gsj.jp/en/publications/cruise-rep/cruise18.html

Mochizuki, Tsunekazu; Terashima, Shigeru; Mizuno, Atsuyuki; Nakao, Seizo (1981): Metal contents of manganese nodules from GH79-1 Area. in: Mizuno, A. (Ed.), Deep Sea Mineral Resources Investigation in the Northern Part of Central Pacific Basin, January-March 1979, (GH79-1 Cruise), Geological Survey of Japan, Cruise Report, 245-246, 15-18.pdf

Piper, David Z (2023): Bulk chemical composition of pelagic sediment samples from the Central Pacific Basin, GH 79-1 detailed survey area [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.961691

Sugisaki, Ryuichi (2023): Chemical analysis of major constituents in surface sediment samples from GH79-1 cruise [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.961693

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: 11.258064 * Median Longitude: -170.227333 * South-bound Latitude: 9.827333 * West-bound Longitude: -178.030167 * North-bound Latitude: 13.046667 * East-bound Longitude: -166.977500

Date/Time Start: 1979-01-21T00:00:00 * Date/Time End: 1979-03-03T00:00:00

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

Event(s):

GH79-1-D315 (Station 1486) * Latitude: 10.553167 * Longitude: -168.001833 * Date/Time: 1979-02-22T00:00:00 * Elevation: -1609.0 m * Location: Pacific Ocean * Campaign: * Basis: Hakurei-Maru (1974) * Method/Device: Dredge (DRG)

GH79-1-FG118C-1 (Station 1451) * Latitude: 13.014333 * Longitude: -174.993167 * Date/Time: 1979-01-22T00:00:00 * Elevation: -5541.0 m * Location: Pacific Ocean * Campaign: * Basis: Hakurei-Maru (1974) * Method/Device: Free-fall grab (FFGR)

GH79-1-FG118C-2 (Station 1451) * Latitude: 13.020000 * Longitude: -174.991333 * Date/Time: 1979-01-22T00:00:00 * Elevation: -5484.0 m * Location: Pacific Ocean * Campaign: * Basis: Hakurei-Maru (1974) * Method/Device: Free-fall grab (FFGR)

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 Appendix XV-1, pp. 318-337 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		Mochizuki, Tsunekazu
6	Deposit type	Deposit type		Mochizuki, Tsunekazu
7	DEPTH, sediment/rock	Depth sed	m	Mochizuki, Tsunekazu		Geocode
8	Manganese	Mn	%	Mochizuki, Tsunekazu	Atomic absorption spectrophotometry
9	Iron	Fe	%	Mochizuki, Tsunekazu	Atomic absorption spectrophotometry
10	Nickel	Ni	%	Mochizuki, Tsunekazu	Atomic absorption spectrophotometry
11	Copper	Cu	%	Mochizuki, Tsunekazu	Atomic absorption spectrophotometry
12	Cobalt	Co	%	Mochizuki, Tsunekazu	Atomic absorption spectrophotometry
13	Lead	Pb	%	Mochizuki, Tsunekazu	Atomic absorption spectrophotometry
14	Zinc	Zn	%	Mochizuki, Tsunekazu	Atomic absorption spectrophotometry
15	Water in rock	H2O	%	Mochizuki, Tsunekazu	Wet chemistry	H2O total
16	Shape	Shape		Mochizuki, Tsunekazu
17	Texture	Texture		Mochizuki, Tsunekazu