Citation:

JC080i027p03831

Name: Chemical composition of manganese nodules and ferromanganese crusts from the Atlantic Ocean analysed using Atomic Absorption Spectrocopy
Creator: David S Cronan
Published: 1975
License: https://creativecommons.org/licenses/by/3.0/

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Project(s):

NOAA and MMS Marine Minerals Geochemical Database (NOAA-MMS)

Coverage:

Median Latitude: 15.182349 * Median Longitude: -39.227094 * South-bound Latitude: -61.867000 * West-bound Longitude: -79.243000 * North-bound Latitude: 75.600000 * East-bound Longitude: 21.450000

Date/Time Start: 1954-06-01T00:00:00 * Date/Time End: 1970-05-17T00:00:00

Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 4.190 m

Event(s):

AMC1167-13A * Latitude: 30.798333 * Longitude: -78.160000 * Date/Time: 1967-10-10T00:00:00 * Elevation: -840.0 m * Location: Blake Plateau, Atlantic Ocean * Campaign: * Basis: Discoverer (1966) * Method/Device: Dredge (DRG) * Comment: Institute: ESSA(NOAA)/AOL

CH36-6RD * Latitude: 36.700000 * Longitude: -67.983000 * Date/Time: 1963-07-08T00:00:00 * Elevation: -4327.0 m * Location: Atlantic Ocean * Campaign: * Basis: Chain * Method/Device: Dredge (DRG)

CH58-9RD (Sta 100) * Latitude: 33.947000 * Longitude: -65.783000 * Date/Time: 1966-05-01T00:00:00 * Elevation: -4743.0 m * Location: Atlantic Ocean * Campaign: * Basis: Chain * 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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Cronan, David S
2	Latitude of event	Latitude		Cronan, David S
3	Latitude of event	Latitude		Cronan, David S
4	Elevation of event	Elevation	m	Cronan, David S
5	Method/Device of event	Method/Device		Cronan, David S
6	Identification	ID		Cronan, David S
7	Sample code/label	Sample label		Cronan, David S
8	DEPTH, sediment/rock	Depth sed	m	Cronan, David S		Geocode
9	Manganese	Mn	%	Cronan, David S	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
10	Iron	Fe	%	Cronan, David S	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
11	Nickel	Ni	%	Cronan, David S
12	Cobalt	Co	%	Cronan, David S
13	Copper	Cu	%	Cronan, David S
14	Lead	Pb	%	Cronan, David S
15	Zinc	Zn	%	Cronan, David S
16	Titanium	Ti	%	Cronan, David S	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
17	Calcium	Ca	%	Cronan, David S
18	Barium	Ba	%	Cronan, David S
19	Phosphorus	P	%	Cronan, David S
20	Potassium	K	%	Cronan, David S	X-ray fluorescence (XRF)
21	Magnesium	Mg	%	Cronan, David S
22	Sodium	Na	%	Cronan, David S	X-ray fluorescence (XRF)
23	Chromium	Cr	mg/kg	Cronan, David S	X-ray fluorescence (XRF)
24	Gallium	Ga	mg/kg	Cronan, David S
25	Mercury	Hg	mg/kg	Cronan, David S
26	Molybdenum	Mo	mg/kg	Cronan, David S	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
27	Tin	Sn	mg/kg	Cronan, David S
28	Strontium	Sr	mg/kg	Cronan, David S	X-ray fluorescence (XRF)
29	Thallium	Tl	mg/kg	Cronan, David S
30	Vanadium	V	mg/kg	Cronan, David S	X-ray fluorescence (XRF)
31	Yttrium	Y	mg/kg	Cronan, David S	X-ray fluorescence (XRF)
32	Zirconium	Zr	mg/kg	Cronan, David S	X-ray fluorescence (XRF)
33	Deposit type	Deposit type		Cronan, David S
34	Shape	Shape		Cronan, David S

License:

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

Size:

1046 data points

Data

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

1 Event	2 Latitude	3 Latitude	4 Elevation [m]	5 Method/Device	6 ID	7 Sample label	8 Depth sed [m]	9 Mn [%] (Inductively coupled plasma at...)	10 Fe [%] (Inductively coupled plasma at...)	11 Ni [%]	12 Co [%]	13 Cu [%]	14 Pb [%]	15 Zn [%]	16 Ti [%] (Inductively coupled plasma at...)	17 Ca [%]	18 Ba [%]	19 P [%]	20 K [%] (X-ray fluorescence (XRF))	21 Mg [%]	22 Na [%] (X-ray fluorescence (XRF))	23 Cr [mg/kg] (X-ray fluorescence (XRF))	24 Ga [mg/kg]	25 Hg [mg/kg]	26 Mo [mg/kg] (Inductively coupled plasma at...)	27 Sn [mg/kg]	28 Sr [mg/kg] (X-ray fluorescence (XRF))	29 Tl [mg/kg]	30 V [mg/kg] (X-ray fluorescence (XRF))	31 Y [mg/kg] (X-ray fluorescence (XRF))	32 Zr [mg/kg] (X-ray fluorescence (XRF))	33 Deposit type	34 Shape
ELT07.001-MT1	-55.9330	-55.9330	-3740	Trawl net	ELT07.001-MT1-1CN7	1130048-00	0.000	26.64	12.98	0.99	0.12	0.41	0.09	0.273		2.00																Mn coating
ELT07.017-PC	-59.0330	-59.0330	-3912	Piston corer	ELT07.017-PC-4CN7	1130065-00	4.190	18.36	21.13	0.50	0.16	0.25	0.21	0.110	0.37	1.65			1.200	1.4000	2.400	32			130		590		250	31	550	Mn crust	Ellipso-discoidal with botryoidal surface
RC11-246	24.7500	24.7500	-5312	Piston corer	RC11-246-1CN7	4040232-00	2.380	16.38	21.68	0.22	0.07	0.20	0.06	0.067	0.35	2.08		0.280	0.500	1.5600	1.320				100							Mn crust	With rough surface
V04-53	33.1000	33.1000	-2470	Piston corer	V04-53-1CN7		0.000	7.54	11.03	0.18	0.18	0.07	0.07	0.106	0.76	17.13	0.0744		0.120	1.8800	0.670	86	20				2258		1300			Mn crust	Ellipsoidal
V14-51RD	-56.6333	-56.6333	-3691	Dredge, rock	V14-51RD-1CN7	1120022-00	0.000	22.02	19.19	0.26	0.48	0.05	0.31	0.175		2.24			0.898	1.6340	2.858											Mn crust	With botryoidal surface
V15-129	-57.0700	-57.0700	-3950	Piston corer	V15-129-1CN7		0.050	6.91	26.53	0.14	0.15	0.10	0.24	0.077	1.07	2.61	0.0650								310	10	850		560		1510	Mn nodule	Ellipso-discoidal with botryoidal surface
V15-138	-49.5800	-49.5800	-2725	Piston corer	V15-138-1CN7		0.000	24.47	17.03	0.82	0.09	0.16	0.13	0.106		1.73									450							Mn nodule	Ellipsoidal with rough surface
V16-41SBT	-61.5830	-61.5830	-4144	Trawl net	V16-41SBT-1CN7		0.000	3.34	25.33	0.03	0.06	0.06	0.11	0.062	0.46	3.18	0.0460								150	80	630		440		290	Mn nodule
V16-42SBT	-61.8670	-61.8670	-3680	Trawl net	V16-42SBT-1CN7		0.000	6.19	25.64	0.04	0.10	0.07	0.14	0.064		2.72			1.268	4.6150	0.817											Mn nodule
V16-8SBT	-30.9670	-30.9670	-5134	Trawl net	V16-8SBT-1CN7		0.000	19.33	16.92	1.42	0.29	0.88	0.22	0.234		0.81																Mn nodule	Spherical with rough surface
V18-182	-32.3300	-32.3300	-2941	Piston corer	V18-182-1CN7	2150086-00	0.000	17.92	19.31	0.35	0.15	0.16	0.17	0.189		1.91		0.170	0.700	1.0400	1.800											Mn crust	Spherical with rough surface
V22-120	-38.9000	-38.9000	-5176	Piston corer	V22-120-1CN71		0.000	23.22	18.26	0.76	0.20	0.24	0.20	0.518		1.91																Mn nodule	Spherical with rough surface
V22-120	-38.9000	-38.9000	-5176	Piston corer	V22-120-1CN72		0.000	14.00	14.00	0.56	0.17	0.15							0.188	1.1180	1.808											Mn nodule	Spherical with rough surface
V22-009RD	-32.3666	-32.3666	-1917	Dredge	V22-009RD-1CN7	2160039-00	0.000	26.78	15.77	0.84	0.70	0.18	0.22	0.106		1.79			0.329	1.0270	1.422											Mn nodule	Spherical with rough surface
V23-67	75.6000	75.6000	-2511	Piston corer	V23-67-1CN71		0.100	12.41	27.26	0.14	0.20	0.03	0.03	0.064		0.94																Mn nodule	Ellipsoidal with botryoidal surface
V23-67	75.6000	75.6000	-2511	Piston corer	V23-67-1CN72		0.100	8.30	18.40	0.05	0.16	0.02																				Mn nodule	Ellipsoidal with botryoidal surface
V25-010RD	23.9500	23.9500	-4124	Dredge	V25-010RD-1CN7	4010090-00	0.000	7.88	29.32	0.14	0.21	0.13	0.07	0.055		1.51			0.614	1.6780	1.886											Mn crust	With rough surface
V25-012RD	24.3900	24.3900	-5396	Dredge	V25-012RD-1CN7	4010103-00	0.000	12.98	23.93	0.23	0.26	0.09	0.10	0.049		1.38			0.436	1.5070	1.864											Mn crust	With rough surface
V25-002RD	26.3333	26.3333	-2496	Dredge	V25-002RD-1CN7	4010046-00	0.000	10.49	19.12	0.11	0.34	0.05	0.11	0.041		10.44																Mn crust	With rough surface
V25-003RD	24.5166	24.5166	-3155	Dredge	V25-003RD-1CN7	4010064-00	0.000	8.95	26.17	0.12	0.25	0.09	0.07	0.053		3.86			0.187	1.3460	0.820											Mn crust	With rough surface
V26-151	24.3830	24.3830	-5327	Piston corer	V26-151-1CN71		0.105	16.40	23.69	0.28	0.10	0.27	0.08	0.070		1.42																Mn nodule	Ellipsoidal with rough surface
V26-151	24.3830	24.3830	-5327	Piston corer	V26-151-1CN72		0.175	8.00	21.70	0.22	0.10	0.08			0.20			0.140	0.410	2.7200	1.000				200							Mn nodule	Ellipsoidal with rough surface
V26-85	-28.5670	-28.5670	-4643	Piston corer	V26-85-1CN7		0.050	17.32	18.08	0.36	0.36	0.14	0.17	0.062		1.71																Mn nodule	Spherical with rough surface
D5627	42.8580	42.8580	-2692	Dredge	D5627-1CN71	ATL-1-4700280-00	0.000	19.08	20.67	0.26	0.42	0.07	0.17	0.063		2.29			0.516	1.9140	1.420											Mn crust
D5627	42.8580	42.8580	-2692	Dredge	D5627-1CN72	ATL-46-4700280-01	0.000	21.51	16.29	0.53	0.48	0.18	0.12	0.085		2.08			0.959	2.2030	1.847											Mn crust
HUD68/22-173	45.6167	45.6167	-2331	Dredge	HUD68/22-173-1CN7	ATL-10-4710194-00	0.000	12.50	23.90	0.12	0.19	0.05	0.06	0.053		4.40			0.593	5.3890	1.656											Mn crust
HUD68/22-165	45.2167	45.2167	-2395	Dredge	HUD68/22-165-1CN7	ATL-111-4710207-00	0.000	16.15	21.64	0.28	0.57	0.08	0.10	0.061		2.04																Mn crust
EASTW-11072D	26.8750	26.8750	-1535	Dredge	EASTW-11072D-1CN7	ATL-121, BM-1970,O,22-4040839-00	0.000	13.89	24.02	0.16	0.54	0.03	0.05	0.053		3.65			0.238	1.6750	1.193											Mn crust	With rough surface
EASTW-11073D	26.8833	26.8833	-1480	Dredge	EASTW-11073D-1CN7	ATL-122-4040840-00	0.000	15.34	23.98	0.26	0.46	0.08	0.14	0.060		2.33																Mn crust	With rough surface
CH36-6RD	36.7000	36.7000	-4327	Dredge	CH36-6RD-1CN7	ATL-128	0.000	13.33	25.99	0.19	0.18	0.12	0.12	0.056	0.37	1.46	0.3700	0.169	0.950						240		580					Mn nodule	Ellipsoidal with rough surface
HUD68/22-159	45.7670	45.7670	-2558	Dredge	HUD68/22-159-1CN7	ATL-13-4710199-00	0.000	14.44	21.61	0.19	0.43	0.05	0.11	0.059		2.77			0.222	1.3920	1.197											Mn crust
AMC1167-13A	30.7983	30.7983	-840	Dredge	AMC1167-13A-1CN7	ATL-134	0.000	19.46	12.35	0.51	0.46	0.06	0.14	0.051	0.39	9.64		0.161	0.431	1.7480							1690					Mn nodule	Ellipsoidal with rough surface
EASTW-7799	32.5830	32.5830	-5070	Dredge	EASTW-7799-1CN7	ATL-135, BM-1970,O,23	0.000	14.96	12.93	0.26	0.08	0.22	0.08	0.044	0.37	6.97			1.260	2.7000	1.900	60			150		10		400			Mn nodule	Ellipsoidal with rough surface
D7297	44.0880	44.0880	-1675	Dredge	D7297-1CN7	ATL-136-4710187-00	0.000	22.54	17.14	0.32	1.01	0.04	0.30	0.049		3.34			0.298	1.6200	1.354											Mn crust
D7294	44.0380	44.0380	-2275	Dredge	D7294-1CN7	ATL-137-4710188-00	0.000	19.46	19.37	0.35	0.54	0.06	0.19	0.063		2.46			0.266	1.6410	1.604											Mn crust
CRNATL-138	41.3500	41.3500	-5005	Dredge	CRNATL-138-1CN71	ATL-138-4700278-00	0.000	15.35	23.10	0.23	0.32	0.10	0.24	0.051		1.77			0.444	1.5610	1.751											Mn crust
CRNATL-138	41.3500	41.3500	-5005	Dredge	CRNATL-138-1CN72	ATL-141-4700278-01	0.000	20.29	19.96	0.37	0.30	0.17	0.27	0.065	0.40	1.87		0.170	0.420	0.5200	2.400				360							Mn crust
CRNATL-139	34.8670	34.8670	-1480	Dredge	CRNATL-139-1CN7	ATL-139-4340358-00	0.000	15.89	17.52	0.27	0.63	0.03	0.34	0.055		4.42			1.069	1.0170	1.674											Mn crust
D7285	44.1350	44.1350	-2885	Dredge	D7285-1CN7	ATL-140-4710189-00	0.000	17.49	20.62	0.30	0.52	0.09	0.20	0.072		2.44			0.253	2.0510	1.889											Mn crust
HUD68/22-156	45.8000	45.8000	-2295	Dredge	HUD68/22-156-1CN7	ATL-15-4710200-00	0.000	16.64	21.67	0.19	0.46	0.03	0.11	0.052		2.39			0.307	1.8770	1.511											Mn crust
HUD68/22-134	45.2667	45.2667	-2570	Dredge	HUD68/22-134-1CN7	ATL-16-4710202-00	0.000	15.72	22.33	0.20	0.36	0.03	0.11	0.055		2.23			0.211	1.3270	1.046											Mn crust
HUD68/22-133	45.5167	45.5167	-2560	Dredge	HUD68/22-133-1CN7	ATL-17-4710203-00	0.000	15.90	22.17	0.19	0.42	0.03	0.11	0.051		2.62			0.221	1.4490	1.193											Mn crust
CRNATL-174	-58.4670	-58.4670	-3039	Dredge	CRNATL-174-1CN7	ATL-174-1150191-00	0.000	11.66	26.80	0.08	0.21	0.07	0.33	0.072		2.41			1.642	2.7310	1.578											Mn coating	With botryoidal surface
HUD68/22-123	45.7500	45.7500	-2190	Dredge	HUD68/22-123-1CN7	ATL-18-4710197-00	0.000	11.91	20.94	0.15	0.42	0.03	0.12	0.055		4.26			0.213	1.5270	1.378											Mn crust
HUD68/22-120	45.7000	45.7000	-2750	Dredge	HUD68/22-120-1CN7	ATL-19-4710198-00	0.000	14.02	22.02	0.21	0.41	0.06	0.11	0.060		2.58			0.297	2.0140	1.712											Mn crust
HUD68/22-116	45.7667	45.7667	-1940	Dredge	HUD68/22-116-1CN7	ATL-20-4710195-00	0.000	5.59	22.87	0.10	0.15	0.06	0.05	0.048		3.64			0.110	0.1428	0.702											Mn crust
THT68/23-8	45.7500	45.7500	-2400	Dredge	THT68/23-8-1CN7	ATL-23-4710201-00	0.000	14.95	20.32	0.27	0.46	0.07	0.10	0.067		1.57			0.201	1.5290	1.000											Mn crust
THT68/23-6	45.2333	45.2333	-2680	Dredge	THT68/23-6-1CN7	ATL-24-4710206-00	0.000	15.37	20.11	0.36	0.41	0.14	0.09	0.070		2.03			0.240	1.9920	1.343											Mn crust
THT68/23-5	45.2333	45.2333	-2760	Dredge	THT68/23-5-1CN71	ATL-25-4710204-00	0.000	15.36	22.86	0.18	0.43	0.04	0.13	0.055		2.72			0.213	1.4790	1.089											Mn crust
THT68/23-5	45.2333	45.2333	-2760	Dredge	THT68/23-5-1CN72	ATL-32-4710204-01	0.000	16.34	22.53	0.20	0.45	0.04	0.10	0.054		2.31			0.259	4.1760	1.234											Mn crust
HUD68/22-192	45.5833	45.5833	-2262	Dredge	HUD68/22-192-1CN71	ATL-26-4710190-00	0.000	13.68	22.79	0.18	0.42	0.04	0.10	0.059		2.71			0.285	2.3150	1.912											Mn crust
HUD68/22-192	45.5833	45.5833	-2262	Dredge	HUD68/22-192-1CN72	ATL-33-4710190-01	0.000	12.23	23.76	0.18	0.28	0.04	0.12	0.065		2.67			0.287	1.9060	2.034											Mn crust
CRNATL-30	35.7670	35.7670	-4654	Dredge	CRNATL-30-1CN7	ATL-30	0.000	14.40	23.68	0.25	0.20	0.14	0.15	0.057		1.71			0.804	1.5500	1.831											Mn nodule	Ellipsoidal
CH58-9RD	33.9470	33.9470	-4743	Dredge	CH58-9RD-1CN71	ATL-38	0.000	15.82	22.01	0.31	0.21	0.17	0.14	0.083		2.03			0.461	1.6800	1.426											Mn nodule	With rough surface
CH58-9RD	33.9470	33.9470	-4743	Dredge	CH58-9RD-1CN72	ATL-39	0.000	15.71	22.62	0.30	0.20	0.16	0.15	0.138		2.13								1								Mn nodule	With rough surface
CRNATL-40	15.4830	15.4830	-374	Dredge	CRNATL-40CBN7	ATL-40	0.000	17.58	22.83	0.20	0.35	0.02	0.19	0.049		2.14			0.235	1.3000	1.309											Mn nodule	With rough surface
D5975	42.9033	42.9033	-3200	Dredge	D5975-1CN7	ATL-42, BM-1966,O,69-4710183-00	0.000	27.39	7.51	0.68	0.20	0.34	0.06	0.141		2.33			0.294	1.3650	1.368											Mn crust
D4809	28.8750	28.8750	-4648	Dredge	D4809-1CN7	ATL-43-3990103-00	0.000	17.59	21.76	0.26	0.41	0.13	0.15	0.059		1.72																Mn crust
D5607	42.9000	42.9000	-3288	Dredge	D5607-1CN71	ATL-44-4710180-00	0.000	19.54	16.54	0.53	0.29	0.24	0.11	0.085		1.99			0.318	1.3920	1.330											Mn crust
D5607	42.9000	42.9000	-3288	Dredge	D5607-1CN72	ATL-45-4710180-01	0.000	18.34	21.08	0.27	0.53	0.10	0.15	0.061		1.87			0.276	1.4080	1.390											Mn crust
D5619	42.9000	42.9000	-3345	Dredge	D5619-1CN71	ATL-47-4710185-00	0.000	18.07	20.24	0.26	0.44	0.08	0.14	0.064		2.75			0.257	1.6120	1.777											Mn crust
D5619	42.9000	42.9000	-3345	Dredge	D5619-1CN72	ATL-48-4710185-01	0.000	17.91	19.87	0.31	0.52	0.12	0.16	0.067		2.09			0.303	1.4070	1.457											Mn crust
D5983	42.9067	42.9067	-3338	Dredge	D5983-1CN7	ATL-50, BM-1966,O,69-4710184-00	0.000	16.97	20.48	0.26	0.56	0.08	0.15	0.061		2.99			0.301	1.2590	1.544											Mn crust
D4799	26.0670	26.0670	-2300	Dredge	D4799-1CN7	ATL-51-3990102-00	0.000	16.25	24.26	0.25	0.47	0.07	0.22	0.062		2.18										5						Mn crust
D5978	42.9100	42.9100	-3475	Dredge	D5978-1CN7	ATL-52, BM-1966,O,68-4710182-00	0.000	18.18	20.90	0.27	0.55	0.10	0.15	0.060		1.95			1.697	2.6600	2.394											Mn crust
CRNATL-76	32.1330	32.1330	-3475	Dredge	CRNATL-76-1CN7	ATL-76-4380113-00	0.000	21.05	17.85	0.74	0.60	0.21	0.11	0.098		1.64			0.227	1.5610	1.497											Mn crust
CRNATL-77	32.0330	32.0330	-2150	Dredge	CRNATL-77-1CN7	ATL-77-4380112-00	0.000	19.77	19.76	0.27	0.60	0.09	0.15	0.059		2.80			0.305	2.6190	1.246											Mn crust
V03-157	36.7670	36.7670	-3955	Piston corer	VM03-157-3CN7	ATL-92	0.560	11.92	27.84	0.11	0.17	0.06	0.14	0.806		2.02			0.447	1.5810	1.652											Mn nodule	Ellipsoidal with rough surface
GOS74-2473	30.2520	30.2520	-830	Dredge	GOS74-2473-1CN7		0.000	16.58	12.47	0.57	0.29	0.09	0.11	0.058	0.25	11.94	0.4100		0.920						360		740					Mn nodule	Ellipsoidal with rough surface
LSDA-222D	9.6500	9.6500	-2388	Dredge	LSDA-222D-1CN7	3290001-00	0.000	15.24	22.20	0.17	0.51	0.02	0.14	0.058		2.42												27				Mn crust	Flat with smooth surface
ELT05.015-RD	-57.9833	-57.9833	-4097	Dredge, rock	ELT05.015-RD-1CN7		0.000	16.63	24.56	0.20	0.24	0.10	0.28	0.070	0.43	1.76	0.1180								390	10	610		1409		670	Mn nodule	Ellipso-discoidal with botryoidal surface
ELT06.004-RD	-55.0080	-55.0080	-2793	Dredge	ELT06.004-RD-1CN7		0.000	11.56	27.27	0.07	0.22	0.06	0.34	0.064	0.45	1.82	0.0400								230	80	580		340		869	Mn nodule	Ellipso-discoidal with botryoidal surface
ELT06.006-RD	-57.1167	-57.1167	-3570	Dredge, rock	ELT06.006-RD-1CN7		0.000	13.27	41.80	0.02	0.02	0.05	0.28	0.065	0.46	1.24	0.0150								80	50	330		560		600	Mn nodule	Ellipso-discoidal with botryoidal surface