Citation:

PANGAEA.948695

Name: Comparative geochemistry of Mn nodules and micoodules from of the Gulf of Mexico, the Atlantic and the Pacific oceans
Creator: Leo A Barnard
Published: 2022-09-21
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.

Published: 2022-09-21 • DOI registered: 2022-11-09

RIS Citation BibTeX Citation Text Citation ShareShow Map Google Earth

Abstract:

Ferromanganese microconcretions (FMC) were hand picked from four sieved size fractions (100, 200, 325 and 400 mesh) of sediment samples from four depths in a one meter gravity core taken in the Mid-Atlantic Ridge FAMOUS Area. Scanning electron microscopy and electron microprobe analysis were used to relate surface morphology and metal content to depth of burial, size fraction and apparent sediment redox conditions. Upper sediment (0-2 cm) FMC's were typified by rounded, botryoidal forms while FMC's taken from the redox boundary region (42-46 cm) showed signs of dissolution and had depressed Fe to Mn ratios (1.32 at the surface, 0.62 at 42-44 cm). Well crystallized pyritihedra were found in samples taken from the base of the core as well as in samples from the redox boundary.

Keyword(s):

Geochemistry; manganese micronodule; manganese nodule; ocean; sediment

Related to:

Barnard, Leo A (1982): Marine manganese accretions: Nodule micronodule comparisons among major ocean basins [dissertation]. Texas A & M University, College Station, Texas, U.S.A, 272 pp, https://hdl.handle.net/1969.1/DISSERTATIONS-346736

Barnard, Leo A; Scott, Martha R (1979): Ferromanganese microconcretions from the FAMOUS area (Abstract). EOS Transactions American Geophysical Union, 60(18), 281, https://doi.org/10.1029/EO060i018p00230

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: 21.050008 * Median Longitude: -84.708733 * South-bound Latitude: -7.633300 * West-bound Longitude: -147.300000 * North-bound Latitude: 36.933333 * East-bound Longitude: -33.218333

Date/Time Start: 1974-05-31T00:00:00 * Date/Time End: 1974-05-31T00:00:00

Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 0.890 m

Event(s):

CH52-KS04 * Latitude: 36.933333 * Longitude: -33.218333 * Date/Time: 1974-05-31T00:00:00 * Elevation: -2944.0 m * Location: Atlantic Ocean * Campaign: * Basis: Jean Charcot * Method/Device: Gravity corer (GC)

GYRE77-6-5 * Latitude: 30.950000 * Longitude: -65.983300 * Elevation: -5000.0 m * Location: Atlantic Ocean * Method/Device: Gravity corer (GC) * Comment: "Campaign , Gyre"

GYRE78-6-8-2 * Latitude: 23.950000 * Longitude: -92.333300 * Elevation: -3649.0 m * Location: Gulf of Mexico * Method/Device: Box corer (BC) * Comment: "Campaign , Gyre"

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		Barnard, Leo A
2	Latitude of event	Latitude		Barnard, Leo A
3	Longitude of event	Longitude		Barnard, Leo A
4	Elevation of event	Elevation	m	Barnard, Leo A
5	Identification	ID		Barnard, Leo A
6	DEPTH, sediment/rock	Depth sed	m	Barnard, Leo A		Geocode
7	Aluminium	Al	%	Barnard, Leo A	Atomic absorption spectrometry (AAS)
8	Barium	Ba	%	Barnard, Leo A	Atomic absorption spectrometry (AAS)
9	Calcium	Ca	%	Barnard, Leo A	Atomic absorption spectrometry (AAS)
10	Cobalt	Co	%	Barnard, Leo A	Atomic absorption spectrometry (AAS)
11	Copper	Cu	%	Barnard, Leo A	Atomic absorption spectrometry (AAS)
12	Iron	Fe	%	Barnard, Leo A	Atomic absorption spectrometry (AAS)
13	Potassium	K	%	Barnard, Leo A	Atomic absorption spectrometry (AAS)
14	Magnesium	Mg	%	Barnard, Leo A	Atomic absorption spectrometry (AAS)
15	Manganese	Mn	%	Barnard, Leo A	Atomic absorption spectrometry (AAS)
16	Sodium	Na	%	Barnard, Leo A	Atomic absorption spectrometry (AAS)
17	Silicon	Si	%	Barnard, Leo A	Atomic absorption spectrometry (AAS)
18	Titanium	Ti	%	Barnard, Leo A	Atomic absorption spectrometry (AAS)
19	Deposit type	Deposit type		Barnard, Leo A		Fe-Mn deposit
20	Sediment type	Sediment		Barnard, Leo A

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

733 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 Al [%]	8 Ba [%]	9 Ca [%]	10 Co [%]	11 Cu [%]	12 Fe [%]	13 K [%]	14 Mg [%]	15 Mn [%]	16 Na [%]	17 Si [%]	18 Ti [%]	19 Deposit type	20 Sediment
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-064	0.000	14.70		8.60			6.60	3.30	4.80	20.90	1.40	39.60		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-60-1	0.000	18.50		6.10		0.10	9.60	2.80	4.20	18.60	1.10	38.90		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-60-2	0.000	14.80		17.80			4.50	3.00	7.40	5.80	0.60	46.00		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-057	0.005	7.00		7.30		0.70	4.90	1.00	3.20	61.90	0.30	13.60		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-55	0.005	23.10		12.60			8.40	3.30	3.00	0.20	0.50	49.00		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-63-1	0.005	9.80		29.20			2.90	3.50	1.80	0.80	0.30	51.70		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-63-2	0.005	10.00		4.80		0.90	7.10	2.20	4.70	46.20	0.50	23.60		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-63-3	0.005	15.10		12.50		0.40	4.60	2.20	7.00	26.60	0.80	30.80		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-065	0.050	17.50		1.50		0.10	8.00	2.90	4.40	22.90	0.70	42.00		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-062	0.150	12.00		3.00		0.90	6.60	1.80	8.20	45.10	0.80	21.50		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-059	0.300	11.40		1.90		0.80	5.30	1.60	5.60	31.00	0.30	42.00		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-065	0.300	12.50		13.30		0.20	7.50	2.60	4.50	31.50	1.20	26.50		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-068	0.300	12.50		5.70			13.00	1.50	3.80	36.60	0.80	26.10		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-069	0.350	14.10		12.70		0.30	6.90	3.20	3.60	22.90	0.60	35.90		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-54-1	0.350	15.00		9.60			7.80	2.40	2.20	6.60	0.50	56.00		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-54-2	0.350	14.20		13.50		0.30	6.50	2.70	3.80	24.30	0.60	34.00		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-54-3	0.350	20.80		9.10			11.60	3.90	4.60	6.40	0.50	43.20		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-54-4	0.350	17.60		11.50		0.30	6.90	3.50	3.60	23.50	0.50	32.40		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-053	0.450	17.30		2.80		0.30	14.80	2.00	4.80	22.80	0.60	34.50		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-066	0.600	11.10		7.70		0.70	4.90	1.20	6.30	38.80	1.40	22.10		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-067	0.600	12.10		14.20		0.40	5.80	2.30	6.70	29.10	0.90	28.40		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-61	0.600	14.20		6.40			6.10	4.30	2.80	11.30	1.10	53.80		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-051	0.700	15.60		9.00		0.10	7.20	3.40	3.40	18.30	0.70	42.20		Mn micronodule	Calcareous clay
GYRE77-6-5	30.9500	-65.9833	-5000	GYRE77-6-5-1-052	0.700	8.40		27.50		0.40	2.90	1.70	2.60	33.20	1.40	21.90		Mn micronodule	Calcareous clay
GYRE78-6-8-2	23.9500	-92.3333	-3649	GYRE78-6-8-2-1-58-1	0.000	17.60		9.50		0.10	6.60	4.30	2.90	14.70	1.10	43.10		Mn nodule	Calcareous clay
GYRE78-6-8-2	23.9500	-92.3333	-3649	GYRE78-6-8-2-1-58-2	0.000	14.10		5.10		0.40	8.20	2.50	4.20	29.60	0.80	35.10		Mn nodule	Calcareous clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-1-001	0.000	4.90		5.70		1.80	8.90	0.90	2.70	58.60	0.40	16.20		Mn nodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-1-001B	0.000	6.40		5.70		1.80	11.70	0.50	3.80	51.50	0.40	18.10		Mn nodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-1-001C	0.000	1.90		6.60		3.50	3.30	0.70	4.00	73.90	0.20	5.90		Mn nodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-1-001D	0.000	9.80		3.30		0.70	13.30	1.00	3.00	31.30	1.30	36.30		Mn nodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-1-001E	0.000	2.90		7.30		3.30	4.80	0.40	3.00	71.00	0.60	6.60		Mn nodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-1-001F	0.000	4.80		6.70		2.80	6.30	0.40	3.40	64.40	0.60	10.60		Mn nodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-1-001G	0.000	4.40		7.00		1.90	8.40	1.20	2.50	57.90	0.90	15.90		Mn nodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-1-043	0.000	3.50		4.40		2.90	6.80	1.00	4.10	67.00	0.50	9.80		Mn nodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-1-088	0.000	2.70		2.40		1.40	5.00	2.10	1.60	65.70	1.80	17.30		Mn nodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-1-28-1	0.000	12.80		2.60		0.30	16.10	2.80	2.50	19.40	1.20	42.30		Mn nodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-1-28-2	0.000	13.00		2.70		0.30	15.90	2.80	2.20	18.90	1.30	42.90		Mn nodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-2-028	0.005	9.00		2.50		0.40	17.10	2.10	2.60	27.30	0.70	38.20		Mn micronodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-2-035	0.005	11.40		2.00		0.40	34.50	3.40	1.30	19.80	3.10	24.20		Mn micronodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-2-049	0.160	6.70		2.90		1.80	9.60	1.40	4.80	55.40	1.10	16.30		Mn micronodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-2-007	0.450	4.20		3.20		2.50	5.50	1.30	6.90	74.00	0.30	2.20		Mn micronodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-2-007	0.450	3.70		3.30		2.10	6.50	1.40	4.90	71.20	0.40	6.50		Mn micronodule	Pelagic clay
GYRE79-6-17	-7.6333	-147.3000	-5000	GYRE79-6-17-2-033	0.890	9.80		3.30		0.40	14.30	0.90	2.20	36.40	0.50	32.20		Mn micronodule	Pelagic clay
CH52-KS04	36.9333	-33.2183	-2944	CH52-KS04-1-01	0.020	5.16	1.20	8.99	0.22	0.16	38.09	0.46	0.80	37.94	2.09	2.71	1.1399	Mn micronodule	Calcareous ooze
CH52-KS04	36.9333	-33.2183	-2944	CH52-KS04-1-02	0.020	8.56	0.97	8.35	0.44	0.32	42.66	0.21	1.50	29.83	1.46	3.62	1.1500	Mn micronodule	Calcareous ooze
CH52-KS04	36.9333	-33.2183	-2944	CH52-KS04-1-03	0.020	9.40	0.72	6.74	0.60	0.61	38.98	1.13	1.85	31.38	2.59	3.76	1.2300	Mn micronodule	Calcareous ooze
CH52-KS04	36.9333	-33.2183	-2944	CH52-KS04-1-04	0.020	6.45	0.72	8.47	0.46	0.24	45.29	0.13	1.37	30.18	1.43	3.26	0.9900	Mn micronodule	Calcareous ooze
CH52-KS04	36.9333	-33.2183	-2944	CH52-KS04-1-05	0.020	7.21	0.71	7.34	0.44	0.07	45.54	0.15	1.39	30.70	0.92	3.19	1.2200	Mn micronodule	Calcareous ooze
CH52-KS04	36.9333	-33.2183	-2944	CH52-KS04-1-06	0.020	6.99	1.01	8.28	0.50	0.28	40.53	0.11	1.14	34.02	1.90	3.25	0.9500	Mn micronodule	Calcareous ooze
CH52-KS04	36.9333	-33.2183	-2944	CH52-KS04-1-07	0.020	12.14	0.81	7.97	0.49	0.12	33.50	0.10	1.84	35.09	1.14	2.81	2.8900	Mn micronodule	Calcareous ooze
CH52-KS04	36.9333	-33.2183	-2944	CH52-KS04-1-08	0.020	7.07	0.83	8.13	0.28	0.50	45.27	0.34	1.56	25.69	2.42	4.93	1.3400	Mn micronodule	Calcareous ooze
CH52-KS04	36.9333	-33.2183	-2944	CH52-KS04-1-09	0.020	6.44	0.83	5.68	0.50	0.50	51.66	0.38	1.42	21.60	1.91	6.29	1.7900	Mn micronodule	Calcareous ooze
CH52-KS04	36.9333	-33.2183	-2944	CH52-KS04-1-10	0.020	8.01	0.86	7.55	0.37	0.17	45.27	0.09	1.16	27.74	1.83	4.85	0.9200	Mn micronodule	Calcareous ooze
CH52-KS04	36.9333	-33.2183	-2944	CH52-KS04-1-11	0.430	4.21	2.95	2.37	0.23	0.49	12.98	0.86	2.43	45.71	0.70	25.93	0.9900	Mn micronodule	Calcareous ooze
CH52-KS04	36.9333	-33.2183	-2944	CH52-KS04-1-12	0.430	6.68	3.77	3.14	0.14	1.08	6.61	0.81	3.97	62.48	0.67	9.60	0.9200	Mn micronodule	Calcareous ooze
CH52-KS04	36.9333	-33.2183	-2944	CH52-KS04-1-13	0.430	7.82	1.18	5.95	1.04	0.26	40.45	0.19	1.23	26.12	0.23	11.43	3.7100	Mn micronodule	Calcareous ooze
CH52-KS04	36.9333	-33.2183	-2944	CH52-KS04-1-14	0.430	9.50	0.67	5.33	0.26	0.33	47.87	0.39	2.57	20.17	0.25	8.43	3.5300	Mn micronodule	Calcareous ooze
CH52-KS04	36.9333	-33.2183	-2944	CH52-KS04-1-15	0.430	11.12	1.39	6.32	0.05	0.31	37.93	0.41	1.55	23.78	0.54	14.03	1.8300	Mn micronodule	Calcareous ooze