Citation:

PANGAEA.951559 (dataset in review)

Name: Chemical analyses of Fe-Mn nodules from the Indian Ocean
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Geochemistry; manganese micronodule; manganese nodule; ocean; sediment

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Abstract:

Mn nodule samples were decomposed with HCl and fumed with H2S04. SiO2 was estimated by the standard procedure of HF. The residue, after the removal of SiO2, was fused with pyrosulphate and the filtrate was added to the main solution. The solution was made to a definite volume-stock solution. Barium was estimated from the residue left after pyrosulphate fusion as chromate. Iron was estimated by the dichromate titration using diphenylamine sulphonate as indicator after passing the solution through the Ag-reductor. Mn was estimated by the bismuthate procedure. R2O3 was precipitated from the stock solution by hexamine. The precipitate was ignited and fused with Na2CO3 boiled in water and filtered and Al2O3 was estimated by the oxine procedure. From the filtrate, from R2O3 precipitation, Ca was precipitated as oxalate and estimated. TiO2 was estimated colorimetrically by H2O2 in presence of H3PO4. Soda and potash were estimated by AAS after decomposing the sample with HCl and H2SO4. Ni, Co and Cu were estimated by AAS, after decomposing with HCl and removing the silica by filtration. +H20 was estimated in a separate sample by the Penfield method and moisture (—H20) by heating at 110°C. For phosphorous, the sample was decomposed with HCl, baked to eliminate silica and filtered. R2O3 was precipitated, filtered and dissolved in HNO3. Phosphorous was precipitated by nitroammonium molybdate and estimated by the acidimetric titration.

Keyword(s):

Geochemistry; manganese micronodule; manganese nodule; ocean; sediment

Related to:

Siddiquie, H N; DasGupta, D R; SenGupta, N R; Shrivastava, P C; Mallik, Tapas Kumar (1978): Manganese iron nodules from the Indian Ocean. Indian Journal of Marine Sciences, 7, 239-253, http://nopr.niscpr.res.in/handle/123456789/39548

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: -16.965946 * Median Longitude: 84.063746 * South-bound Latitude: -29.866600 * West-bound Longitude: 53.350000 * North-bound Latitude: -1.616667 * East-bound Longitude: 108.316667

Date/Time Start: 1960-01-29T00:00:00 * Date/Time End: 1964-12-12T00:00:00

Minimum Elevation: -5860.0 m * Maximum Elevation: -4119.0 m

Event(s):

CH43-5RD (Sta 11) * Latitude: -1.616667 * Longitude: 53.350000 * Date/Time: 1964-04-09T00:00:00 * Elevation: -4784.0 m * Location: Atlantic Ocean * Campaign: * Basis: Chain * Method/Device: Dredge (DRG)

DODO-062D * Latitude: -16.300000 * Longitude: 104.267000 * Date/Time: 1964-06-21T00:00:00 * Elevation: -5660.0 m * Location: Indian Ocean * Campaign: * Basis: Argo * Method/Device: Dredge (DRG)

DODO-066DA * Latitude: -19.933000 * Longitude: 100.000000 * Date/Time: 1964-06-23T00:00:00 * Elevation: -5860.0 m * Location: Indian Ocean * Campaign: * Basis: Argo * 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 4-5, pp. 252 of the related publication.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Siddiquie, H N
2	Latitude of event	Latitude		Siddiquie, H N
3	Longitude of event	Longitude		Siddiquie, H N
4	Elevation of event	Elevation	m	Siddiquie, H N
5	Identification	ID		Siddiquie, H N
6	Deposit type	Deposit type		Siddiquie, H N
7	Manganese	Mn	%	Siddiquie, H N	Wet chemistry
8	Iron	Fe	%	Siddiquie, H N	Wet chemistry
9	Nickel	Ni	%	Siddiquie, H N	Atomic absorption spectrophotometry
10	Copper	Cu	%	Siddiquie, H N	Atomic absorption spectrophotometry
11	Cobalt	Co	%	Siddiquie, H N	Atomic absorption spectrophotometry
12	Molybdenum	Mo	%	Siddiquie, H N	Atomic absorption spectrophotometry
13	Zinc	Zn	%	Siddiquie, H N	Atomic absorption spectrophotometry
14	Titanium	Ti	%	Siddiquie, H N	Colorimetry
15	Lead	Pb	%	Siddiquie, H N	Atomic absorption spectrophotometry
16	Strontium	Sr	%	Siddiquie, H N	Atomic absorption spectrophotometry
17	Barium	Ba	%	Siddiquie, H N	Wet chemistry
18	Phosphorus	P	%	Siddiquie, H N	Wet chemistry
19	Aluminium oxide	Al2O3	%	Siddiquie, H N	Wet chemistry
20	Calcium oxide	CaO	%	Siddiquie, H N	Wet chemistry
21	Sodium oxide	Na2O	%	Siddiquie, H N	Wet chemistry
22	Potassium oxide	K2O	%	Siddiquie, H N	Wet chemistry
23	Silicon dioxide	SiO2	%	Siddiquie, H N	Wet chemistry
24	Carbon	C	%	Siddiquie, H N	Wet chemistry
25	Carbon dioxide	CO2	%	Siddiquie, H N	Wet chemistry
26	Water in rock	H2O	%	Siddiquie, H N	Wet chemistry	H2O+, structural part, similar to LOI
27	Water in rock	H2O	%	Siddiquie, H N	Loss of weight after drying at 110°C for 12h	H2O-, hydration part
28	Chromium	Cr	%	Siddiquie, H N	Atomic absorption spectrophotometry
29	Sample type	Samp type		Siddiquie, H N		Part analysed

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

396 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 Deposit type	7 Mn [%] (Wet chemistry)	8 Fe [%] (Wet chemistry)	9 Ni [%] (Atomic absorption spectrophot...)	10 Cu [%] (Atomic absorption spectrophot...)	11 Co [%] (Atomic absorption spectrophot...)	12 Mo [%] (Atomic absorption spectrophot...)	13 Zn [%] (Atomic absorption spectrophot...)	14 Ti [%] (Colorimetry)	15 Pb [%] (Atomic absorption spectrophot...)	16 Sr [%] (Atomic absorption spectrophot...)	17 Ba [%] (Wet chemistry)	18 P [%] (Wet chemistry)	19 Al2O3 [%] (Wet chemistry)	20 CaO [%] (Wet chemistry)	21 Na2O [%] (Wet chemistry)	22 K2O [%] (Wet chemistry)	23 SiO2 [%] (Wet chemistry)	24 C [%] (Wet chemistry)	25 CO2 [%] (Wet chemistry)	26 H2O [%] (H2O+, structural part, simila...)	27 H2O [%] (H2O-, hydration part, Loss of...)	28 Cr [%] (Atomic absorption spectrophot...)	29 Samp type (Part analysed)
VITYAZ5186	-26.8000	108.3167	-5258	VITYAZ5186-1SIQa	Mn nodule	19.36	13.16	0.500	0.040	0.050	0.0100	0.010	0.900	0.030	<0.005	0.030	0.13	3.87	2.27	1.70	0.70	11.63						Inner rind
VITYAZ5186	-26.8000	108.3167	-5258	VITYAZ5186-1SIQb	Mn nodule	14.48	13.44	0.420	0.050	0.120	0.0350	0.013	1.140	0.060	<0.005	0.040	0.06	6.07	2.11	4.00	1.30	17.53						Outer rind
VITYAZ5186	-26.8000	108.3167	-5258	VITYAZ5186-1SIQc	Mn nodule	16.72	16.02	0.310	0.130		0.0290		0.660			0.089	0.29	3.39	2.72			14.54	0.070	0.61			0.0011	Outer rind
VITYAZ5186	-26.8000	108.3167	-5258	VITYAZ5186-1SIQd	Mn nodule	9.58	11.76	0.280	0.120		0.0190		0.470			0.035	0.23	5.20	1.92			39.79	0.080	0.28			0.0004	Core
DODO-066DA	-19.9330	100.0000	-5860	DODO-066DA-1SIQa	Mn nodule	17.02	10.15	0.770	0.070	0.050	0.0220	0.012	0.480	0.040	<0.005	0.040	0.23	3.77	1.81	1.49	0.80	14.90			13.14	17.51		Whole
DODO-066DA	-19.9330	100.0000	-5860	DODO-066DA-1SIQb	Mn nodule	16.51	9.11	0.755	0.530	0.196	0.0520		0.356	0.070		0.136									30.12		0.0009	Whole
DODO-062D	-16.3000	104.2670	-5660	DODO-062D-1SIQa	Mn nodule	20.77	8.12	0.960	0.310	0.070	0.0200	0.015	0.360	0.060	<0.005	0.035	0.15	4.28	1.90	1.51	0.80	15.17	0.056		9.85	16.40		Whole
DODO-062D	-16.3000	104.2670	-5660	DODO-062D-1SIQb	Mn nodule	18.46	10.93	0.380	0.241	0.325	0.0420		0.497	0.032		0.227									26.87		0.0015	Whole
DODO-232D	-5.3830	97.4830	-4119	DODO-232D-2SIQa	Mn nodule	13.31	12.46	0.650	0.050	0.140	0.0180	0.012	1.020	0.055	<0.005	0.070	0.23	4.05	2.37	1.80	1.16	14.34	4.300		12.56	18.84		Whole
DODO-232D	-5.3830	97.4830	-4119	DODO-232D-2SIQa	Mn nodule	14.59	15.92	0.357	0.301	0.070	0.0180		0.294	0.041		0.129									30.03		0.0003	Whole
VITYAZ5201	-22.3633	91.6333	-5280	VITYAZ5201-1SIQa	Mn nodule	13.20	11.76	0.310	0.040	0.040	0.0080	0.012	0.540	0.020	<0.005	0.036	0.02	4.76	1.54	1.30	0.56	33.50					0.0001	Inner rind
VITYAZ5201	-22.3633	91.6333	-5280	VITYAZ5201-1SIQb	Mn nodule	14.44	15.82	0.330	0.045	0.090	0.0100	0.012	0.720	0.060	<0.005	0.034	0.17	3.53	1.70	1.50	0.60	18.03						Outer rind
VITYAZ5201	-22.3633	91.6333	-5280	VITYAZ5201-1SIQc	Mn nodule	19.26	12.18	0.520	0.210		0.0450		0.620			0.130	0.25	3.14	2.74			13.21	0.060	0.49				Outer rind
CH43-5RD	-1.6167	53.3500	-4784	CH43-5RD-1SIQa	Mn nodule	14.66	13.86	0.100	0.045	0.030	0.0045	0.045	0.720	0.020			0.19	3.39	2.35	1.91	0.95	14.95	4.900	0.58	11.98	14.72	<0.0020	Inner rind
CH43-5RD	-1.6167	53.3500	-4784	CH43-5RD-1SIQb	Mn nodule	18.49	12.22	0.130	0.760	0.030	0.0050	0.025	0.600	0.018			0.18	3.04	2.28	1.50	0.85	13.01	3.980	0.55	8.68	16.97	<0.0020	Outer rind
V16-19SBT	-29.8666	62.6000	-4609	V16-19SBT-1SIQL1a	Mn nodule	11.18	17.29	0.220	0.043	0.060	0.0090	0.012	0.930	0.035	<0.005	0.030	0.23	4.91	1.96	1.52	0.83	18.23	1.500		10.60	16.50	<0.0015	Inner rind
V16-19SBT	-29.8666	62.6000	-4609	V16-19SBT-1SIQL1b	Mn nodule	13.21	16.31	0.270	0.040	0.090	0.0050	0.012	1.140	0.030	<0.005	0.025	0.21	3.56	2.34	1.51	0.83	13.77	3.200		10.46	18.54	<0.0015	Inner rind
V16-19SBT	-29.8666	62.6000	-4609	V16-19SBT-1SIQL9	Mn nodule	11.77	16.80	0.280	0.025	0.080	0.0065	0.009	0.930	0.040	<0.005	0.050	0.23	4.56	2.08	1.52	0.83	16.34	2.900		10.57	16.98		Whole
V16-19SBT	-29.8666	62.6000	-4609	V16-19SBT-1SIQd	Mn nodule	9.50	20.90	0.130	0.110	0.290	0.0130	0.047	0.650	0.015	0.096	0.500		6.10	2.01			20.30			15.60			Whole
VITYAZ5321-1	-13.4650	54.8600	-4523	VITYAZ5321-1-1SIQ	Mn nodule	14.58	15.96	0.240		0.230	0.0082	0.010	0.840	0.145	0.013		0.20	4.88	2.28	1.56	0.69	15.87			12.83	14.17		Whole