Citation:

320518a0

Name: (Table 1, Page 518) Bulk chemical composition of a ferromanganese crusts from the South-West Pacific
Published: 1986
License: https://creativecommons.org/licenses/by/3.0/

Always quote citation above when using data! You can download the citation in several formats below.

Published: 1986 (exact date unknown) • DOI registered: 2016-07-27

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Abstract:

Little is known about the abundance, distribution and origin of the precious metals in marine ferromanganese materials, although it has long been recognized that elements such as silver and gold are frequently enriched in ferromanganese nodules when compared with average crustal abundance. Relative to crustal abundance, silver is enriched in nodules by a factor of between 50 and 100, and for gold enrichment factors of between 100 and 1,000 have been found. The authors report an unusual occurrence of silver and gold in ferromanganese crusts from a back-arc setting in the south-west Pacific; to their knowledge, the first report of material of this kind.

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: -21.549892 * Median Longitude: 166.172319 * South-bound Latitude: -31.866375 * West-bound Longitude: 162.716645 * North-bound Latitude: -12.000000 * East-bound Longitude: 168.283323

Date/Time Start: 1975-10-01T00:00:00 * Date/Time End: 1976-04-30T00:00:00

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

Event(s):

EV76-1-SP40 (EV100-SP40) * Latitude: -20.783300 * Longitude: 167.516990 * Date/Time: 1976-04-30T00:00:00 * Elevation: -1400.0 m * Location: Southwest Pacific Ocean * Campaign: * Basis: Le Noroit * Method/Device: Dredge (DRG) * Comment: Institute: IRD (ORSTOM)

GO3N-SP10 * Latitude: -12.000000 * Longitude: 162.716645 * Date/Time: 1975-10-01T00:00:00 * Elevation: -3100.0 m * Location: Southwest Pacific Ocean * Campaign: * Basis: Le Noroit * Method/Device: Dredge (DRG) * Comment: Institute: IRD (ORSTOM)

GO3S-351D (GO3S-SP29) * Latitude: -31.866375 * Longitude: 168.283323 * Date/Time: 1975-11-01T00:00:00 * Elevation: -2500.0 m * Location: Southwest Pacific Ocean * Campaign: * Basis: Le Noroit * Method/Device: Dredge (DRG) * Comment: Institute: IRD (ORSTOM)

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.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Bolton, B R
2	Date/Time of event	Date/Time		Bolton, B R
3	Latitude of event	Latitude		Bolton, B R
4	Longitude of event	Longitude		Bolton, B R
5	Elevation of event	Elevation	m	Bolton, B R
6	Sample ID	Sample ID		Bolton, B R
7	DEPTH, sediment/rock	Depth sed	m	Bolton, B R		Geocode
8	Manganese	Mn	%	Bolton, B R	Wet chemistry
9	Iron	Fe	%	Bolton, B R	Wet chemistry
10	Lead	Pb	mg/kg	Bolton, B R	Wet chemistry
11	Nickel	Ni	mg/kg	Bolton, B R	Wet chemistry
12	Copper	Cu	mg/kg	Bolton, B R	Wet chemistry
13	Zinc	Zn	mg/kg	Bolton, B R	Wet chemistry
14	Cobalt	Co	mg/kg	Bolton, B R	Wet chemistry
15	Deposit type	Deposit type		Bolton, B R
16	Thickness	Thick	mm	Bolton, B R
17	Substrate type	Substrate		Bolton, B R
18	Description	Description		Bolton, B R

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

36 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Date/Time	3 Latitude	4 Longitude	5 Elevation [m]	6 Sample ID	8 Mn [%]	9 Fe [%]	10 Pb [mg/kg]	11 Ni [mg/kg]	12 Cu [mg/kg]	13 Zn [mg/kg]	14 Co [mg/kg]	15 Deposit type	16 Thick [mm]	17 Substrate	18 Description
GO3N-SP10	1975-10	-12.0000	162.7166	-3100	GO3N-SP10-1	14.8	16.0	579.000	2.329	853.000	391	1.56	Mn crust	30	Altered basalt	Crust, 3 cm thick, slightly gritty and mamillated surface with patches of adhering clay, underlain by brownish-black, porous and unlayered Fe-Mn material. Substrate is altered basalt, separated from crust by a 1mm discontinuous layer of white clay.
GO3S-351D	1975-11	-31.8664	168.2833	-2500	GO3S-351D-1	20.9	13.1	1.573	4.453	573.000	624	6.35	Mn crust	30	Chert breccia	Hard, dense and smooth outer layer over black, crudely layered and hard ferromanganese material up to 3 cm thick. The substrate is bluish-grey chert and chert breccia.
EV76-1-SP40	1976-04	-20.7833	167.5170	-1400	EV76-1-SP40-1	14.9	16.1	1.143	2.414	1.229	539	3.72	Mn crust	25	Consolidated clay	Rough, gritty surface of brownish-black, coarsely layered Fe-Mn material up to 2.5 cm thick. Centimetric layers seperated by light-coloured detrital material. Overlies a mottled, brown to white, gritty clay.