Citation:

PANGAEA.948834

Name: Selected minor element chemical analyses of manganese nodules and crusts from the Indian Ocean
Creator: David S Cronan
Published: 2022-09-22
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Geochemistry; manganese micronodule; manganese nodule; ocean; sediment

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

RIS Citation BibTeX Citation Text Citation Facebook TwitterShow Map Google Earth

Abstract:

Ferromanganese nodules and encrustations have been analysed for selected minor elements (mainly Cd, Cr and Ti) by atomic absorption spectrophotometry. The preparation of ferromanganese-oxide samples for analysis varied according to the nature of the samples. Those covered by adhering sediment were washed clean with de-ionised water and left to dry but in some cases this treatment was not necessary. Where possible, 10 to 15 g. of sample was taken for crushing. Preliminary dessication procedure was required for ferromanganese-oxide samples, because of their tendency to absorb atmospheric moisture when in a finely divided state. After 2 ml. of 6M HCL had been added to the beakers, they were placed on a hotplate and heated gently for about 2 hours to breakdown the Mn oxides prior to the addition of the main reagents. All the elements investigated were analysed in all samples by atomic absorption spectrophotometry using a Perkin Elmer 403 spectrophotometer.

Keyword(s):

Geochemistry; manganese micronodule; manganese nodule; ocean; sediment

Related to:

Cronan, David S (1980): Underwater minerals. Ocean science, resources and technology. Academic Press, London, United Kingdom, 362 pp, Cronan_Underwater_Minerals_1980.pdf

Cronan, David S (2022): Chemical analyses of manganese nodules and crusts from the Indian, Atlantic and Pacific oceans (main elements) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.948833

Moorby, S A (1978): The geochemistry and mineralogy of some ferromanganese oxides and associated deposits from the Indian and Atlantic Oceans [dissertation]. Imperial College of Science, Technology and Medicine (University of London), 378 pp, hdl:10044/1/34963

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: 4.989975 * Median Longitude: 31.354336 * South-bound Latitude: -32.670000 * West-bound Longitude: -12.933000 * North-bound Latitude: 36.517000 * East-bound Longitude: 76.017000

Date/Time Start: 1964-07-08T00:00:00 * Date/Time End: 1975-06-17T00:00:00

Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 2.30 m

Event(s):

24-234 * Latitude: 4.482700 * Longitude: 51.224700 * Date/Time: 1972-05-19T00:00:00 * Elevation: -4721.0 m * Penetration: 247 m * Recovery: 90.1 m * Location: Indian Ocean//RIDGE * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 15 cores; 142.5 m cored; 0 m drilled; 63.2 % recovery

DODO-112P * Latitude: -22.683000 * Longitude: 76.017000 * Date/Time: 1964-07-08T00:00:00 * Elevation: -4167.0 m * Recovery: 13 cm * Location: Indian Ocean * Campaign: * Basis: Argo * Method/Device: Piston corer (PC)

Shackleton73/2_077 (SH73:077) * Latitude: 36.517000 * Longitude: -11.775000 * Elevation: -1600.0 m * Location: Atlantic Ocean * Campaign: * Basis: Shackleton * 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 Appendix - Part 2, pp. 340-350 of the related publication. Some of the samples were omitted because already published on PANGAEA. Extra samples and chemical elements were present in the NOAA-MMS data table. The extra elements are probably coming from the thesis work of Moorby, C. A; which were not published at the time but transmitted by Cronan to NOAA-NGDC.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Moorby, S A
2	Latitude of event	Latitude		Moorby, S A
3	Longitude of event	Longitude		Moorby, S A
4	Elevation of event	Elevation	m	Moorby, S A
5	Identification	ID		Moorby, S A
6	DEPTH, sediment/rock	Depth sed	m	Moorby, S A		Geocode
7	Cadmium	Cd	mg/kg	Moorby, S A	Atomic absorption spectrophotometry
8	Chromium	Cr	mg/kg	Moorby, S A	Atomic absorption spectrophotometry
9	Titanium	Ti	%	Moorby, S A	Atomic absorption spectrophotometry
10	Barium	Ba	%	Moorby, S A	Atomic absorption spectrophotometry
11	Beryllium	Be	mg/kg	Moorby, S A	Atomic absorption spectrophotometry
12	Gallium	Ga	mg/kg	Moorby, S A	Atomic absorption spectrophotometry
13	Potassium	K	%	Moorby, S A	Atomic absorption spectrophotometry
14	Lithium	Li	mg/kg	Moorby, S A	Atomic absorption spectrophotometry
15	Magnesium	Mg	%	Moorby, S A	Atomic absorption spectrophotometry
16	Molybdenum	Mo	mg/kg	Moorby, S A	Atomic absorption spectrophotometry
17	Sodium	Na	%	Moorby, S A	Atomic absorption spectrophotometry
18	Niobium	Nb	mg/kg	Moorby, S A	Atomic absorption spectrophotometry
19	Phosphorus	P	%	Moorby, S A	Atomic absorption spectrophotometry
20	Sulfur	S	%	Moorby, S A	Atomic absorption spectrophotometry
21	Tin	Sn	mg/kg	Moorby, S A	Atomic absorption spectrophotometry
22	Strontium	Sr	mg/kg	Moorby, S A	Atomic absorption spectrophotometry
23	Vanadium	V	mg/kg	Moorby, S A	Atomic absorption spectrophotometry
24	Zirconium	Zr	mg/kg	Moorby, S A	Atomic absorption spectrophotometry
25	Deposit type	Deposit type		Moorby, S A		Fe-Mn deposit
26	Sediment type	Sediment		Moorby, S A
27	Description	Description		Moorby, S A

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

138 data points

Data

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

1 Event	2 Latitude	3 Longitude	4 Elevation [m]	5 ID	6 Depth sed [m]	7 Cd [mg/kg]	8 Cr [mg/kg]	9 Ti [%]	10 Ba [%]	11 Be [mg/kg]	12 Ga [mg/kg]	13 K [%]	14 Li [mg/kg]	15 Mg [%]	16 Mo [mg/kg]	17 Na [%]	18 Nb [mg/kg]	19 P [%]	20 S [%]	21 Sn [mg/kg]	22 Sr [mg/kg]	23 V [mg/kg]	24 Zr [mg/kg]	25 Deposit type	26 Sediment	27 Description
V29-54	-22.6000	64.9800	-4449	V29-54-1CR80	0.03			0.480				0.560		0.380	180	2.480		0.24						Mn crust		Mn crust with smooth surface
V29-59	-19.0000	73.1330	-4954	V29-59-1CR80	0.00			0.200		20	10			2.000	150	1.000	100			10	500	300	100	Mn nodule	Clay	Discoidal to ellipsoidal Mn nodule with rough surface
V29-67	-32.6700	66.3800	-4910	V29-67-2CR80(b)	0.00		14	0.950	0.071						270							410		Mn crust		Mn crust with rough surface
DODO-112P	-22.6830	76.0170	-4167	DODO-112P-1CR80	0.06		14	0.570	0.194						220							390		Mn crust	Ooze	Mn crust with rough surface
24-234	4.4827	51.2247	-4721	4-234-1-2,80-1CR80	2.30							0.507		1.366		1.316								Mn nodule	Mud	Mn nodule with rough surface
VA07/013GK+F	-29.2160	50.6583	-4877	VA07-13GK-1CR80	0.00	9	25	0.980																Mn nodule
Shackleton73/2_077	36.5170	-11.7750	-1600	Shackleton73/2_077-1CR80(18)	0.00	10	150	0.735																Mn nodule		Spheroidal to discoidal Mn nodule
Shackleton73/2_077	36.5170	-11.7750	-1600	Shackleton73/2_077-1CR80(33)	0.00	10	40	0.475						0.500				0.18	0.28					Mn nodule		Spheroidal to discoidal Mn nodule
Shackleton75/5_1322c	1.2830	56.5750	-1865	Shackleton75/5_1322c-1CR80	0.00	8		0.750					2	1.100										Mn crust		Mn crust with rough surface
Shackleton73/2_100	35.1330	-12.9330	-1450	Shackleton73/2_100-2CR80(2)	0.00	10	80	0.810																Mn nodule		Ellipsoidal Mn nodule
Shackleton73/2_100	35.1330	-12.9330	-1450	Shackleton73/2_100-1CR80(3)	0.00	10	50	0.910				0.271		2.114		3.044								Mn crust		Mn crust
Shackleton73/3_169	36.2920	-12.5830	-3700	Shackleton73/3_169-2CR80(1)	0.00	8	38	0.420																Mn crust		Mn crust on basalt
Shackleton73/3_169	36.2920	-12.5830	-3700	Shackleton73/3_169-2CR80(3)	0.00	7	68	0.455																Mn crust		Mn crust on basalt
Shackleton73/3_169	36.2920	-12.5830	-3700	Shackleton73/3_169-2CR80(6)	0.00	14	50	0.495																Mn crust		Mn crust on basalt
Shackleton73/3_169	36.2920	-12.5830	-3700	Shackleton73/3_169-2CR80(14)	0.00	10	55	0.475																Mn crust		Mn crust on basalt
Shackleton73/3_169	36.2920	-12.5830	-3700	Shackleton73/3_169-2CR80(17)	0.00	13	80	0.535																Mn crust		Mn crust on basalt
Shackleton73/3_169	36.2920	-12.5830	-3700	Shackleton73/3_169-2CR80(20)	0.00	12	45	0.560																Mn crust		Mn crust on basalt
Shackleton73/3_171	36.3080	-12.5750	-3800	Shackleton73/3_171-1CR80	0.00	6	65	0.585																Mn crust		Mn crust fragment
Shackleton73/3_178	36.0330	-12.8500	-4600	Shackleton73/3_178-2CR80	0.00	7	45	0.450																Mn crust		Mn crust on basalt