Citation:

minmag.1977.041.318.06

Name: (Tables 1-2, page 195) Chemical composition of ferromanganese crusts and associated smectites from the Gulf of Aden
Creator: Joe R Cann
Published: 1977
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Fragments of a hydrothermal deposit, partly moulded on pieces of basalt lava, were dredged from the edge of the median valley in the centre of the Gulf of Aden. The deposit consists of two main components, manganese oxide in the form of spongy brown to hard black lumps and coatings, and friable green massive smectite. There are smaller amounts of an iron-oxide component, and mixed manganese-oxide-smectite material. Contents of the less mobile trace elements in the smectite are too low for it to have formed by alteration of basalt glass, and it is interpreted as a direct precipitate from hydrothermal solution. None of the components is enriched in Cu or Zn, or contains appreciable amounts of sulphur. If there are sulphides in this deposit, they must lie beneath the parts sampled.

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:

Latitude: 12.573330 * Longitude: 47.658330

Date/Time Start: 1967-03-12T22:00:00 * Date/Time End: 1967-03-12T22:00:00

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

Event(s):

D6243 * Latitude: 12.573330 * Longitude: 47.658330 * Date/Time: 1967-03-12T22:00:00 * Elevation: -2405.0 m * Location: Gulf of Aden * Campaign: * Basis: Discovery (1962) * Method/Device: Dredge, rock (DRG_R)

Comment:

Samples were prepared by lithium metaborate fusion followed by HCl extraction.

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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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	Identification	ID		Cann, Joe R
2	DEPTH, sediment/rock	Depth sed	m	Cann, Joe R		Geocode
3	Silicon	Si	%	Cann, Joe R	Atomic absorption spectrometry (AAS)
4	Aluminium	Al	%	Cann, Joe R	Atomic absorption spectrometry (AAS)
5	Iron	Fe	%	Cann, Joe R	Atomic absorption spectrometry (AAS)
6	Manganese	Mn	%	Cann, Joe R	Atomic absorption spectrometry (AAS)
7	Magnesium	Mg	%	Cann, Joe R	Atomic absorption spectrometry (AAS)
8	Calcium	Ca	%	Cann, Joe R	Atomic absorption spectrometry (AAS)
9	Sodium	Na	%	Cann, Joe R	Atomic absorption spectrometry (AAS)
10	Potassium	K	%	Cann, Joe R	Atomic absorption spectrometry (AAS)
11	Water in rock	H2O	%	Cann, Joe R	Element analyser CHN
12	Carbon dioxide	CO2	%	Cann, Joe R	Element analyser CHN
13	Sulfur, total	TS	mg/kg	Cann, Joe R	X-ray fluorescence (XRF)
14	Titanium	Ti	mg/kg	Cann, Joe R	X-ray fluorescence (XRF)
15	Cobalt	Co	mg/kg	Cann, Joe R	X-ray fluorescence (XRF)
16	Nickel	Ni	mg/kg	Cann, Joe R	X-ray fluorescence (XRF)
17	Copper	Cu	mg/kg	Cann, Joe R	X-ray fluorescence (XRF)
18	Zinc	Zn	mg/kg	Cann, Joe R	X-ray fluorescence (XRF)
19	Gallium	Ga	mg/kg	Cann, Joe R	X-ray fluorescence (XRF)
20	Germanium	Ge	mg/kg	Cann, Joe R	X-ray fluorescence (XRF)
21	Rubidium	Rb	mg/kg	Cann, Joe R	X-ray fluorescence (XRF)
22	Strontium	Sr	mg/kg	Cann, Joe R	X-ray fluorescence (XRF)
23	Yttrium	Y	mg/kg	Cann, Joe R	X-ray fluorescence (XRF)
24	Zirconium	Zr	mg/kg	Cann, Joe R	X-ray fluorescence (XRF)
25	Niobium	Nb	mg/kg	Cann, Joe R	X-ray fluorescence (XRF)
26	Barium	Ba	mg/kg	Cann, Joe R	X-ray fluorescence (XRF)
27	Deposit type	Deposit type		Cann, Joe R
28	Description	Description		Cann, Joe R

License:

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

Size:

318 data points

Data

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

1 ID	3 Si [%]	4 Al [%]	5 Fe [%]	6 Mn [%]	7 Mg [%]	8 Ca [%]	9 Na [%]	10 K [%]	11 H2O [%]	12 CO2 [%]	13 TS [mg/kg]	14 Ti [mg/kg]	15 Co [mg/kg]	16 Ni [mg/kg]	17 Cu [mg/kg]	18 Zn [mg/kg]	19 Ga [mg/kg]	20 Ge [mg/kg]	21 Rb [mg/kg]	22 Sr [mg/kg]	23 Y [mg/kg]	24 Zr [mg/kg]	25 Nb [mg/kg]	26 Ba [mg/kg]	27 Deposit type	28 Description
D6243-1-2c(b)	4.79	1.11	6.39	34.22	1.09	1.41	3.53	1.13	9.16	1.30	1650	2000	37	390	77	215	3	2	12	375	6	47		1650	Mn crust	Hard ferromanganese oxide
D6243-1-2c(c)	5.38	1.11	1.31	34.89	2.21	1.74	2.57	1.54	8.13	1.74	1100	1600	75	900	110	445	5	2	19	350	11	63		2000	Mn crust	Soft ferromanganese oxide
D6243-1-3B(c)	4.04	0.84	1.53	37.33	2.01	1.49	2.75	1.57	9.90	0.99	1800	1100	28	670	203	780	4	1	12	325	11	42		1100	Mn crust	Soft ferromanganese oxide
D6243-1-3M(c)	2.32	0.06	4.52	38.83	1.60	1.50	3.04	1.28	10.97	0.26	1050	200	13	14	9	18	0	2	6	340	1	15		1000	Mn crust	Soft ferromanganese oxide
D6243-1-3T(e)	3.38	0.69	0.76	39.82	1.50	1.55	2.90	1.21	9.78	0.52	900	700	2	22	8	22	0	2	11	215	2	18		530	Mn crust	Soft ferromanganese oxide
D6243-1-5(c)	1.97	0.34	1.51	42.45	2.17	1.52	3.07	1.62	10.11	0.73	1450	800	25	375	83	385	2	1	8	335	7	28		660	Mn crust	Soft ferromanganese oxide
D6243-1-10(d)	22.12	0.33	22.75	0.10	1.80	0.55	1.24	3.41	8.50	1.24	400	250	12	6	0	2	0	0	73	47	2	7	2	120	Sediment	Yellow to green friable material (smectite)
D6243-1-12(d)	22.14	0.10	19.14	0.10	1.67	0.46	1.02	3.05	6.54	0.66	700	0	2	4	0	0	0	0	79	32	1	2	1	40	Sediment	Yellow to green friable material (smectite)
D6243-1-24(d)	21.94	0.10	22.89	0.10	1.94	0.47	1.27	3.57	8.32	2.65	450	200	1	3	0	2	0	1	80	40	2	9	1	65	Sediment	Yellow to green friable material (smectite)
D6243-1-31(d)	21.76	0.10	24.17	0.10	1.89	0.51	1.45	2.73	7.62	0.92	700	200	3	1	0	2	0	0	59	55	2	7	1	70	Sediment	Yellow to green friable material (smectite)
D6243-1-31(e)	10.21	0.28	23.49	10.38	1.11	1.82	2.37	1.08	13.86	2.12	1550	620	7	35	2	47	1	1	9	413	6	27	0	400	Sediment	Orange powdery iron oxide
D6243-1-32(f)	14.93	0.09	16.16	10.94	1.75	0.56	2.00	2.39	8.24	0.44	900	0	0	100	17	96	0	1	41	147	2	13	0	420	Sediment	Soft chocolate brown material, mixture of smectite and oFe-Mn oxides