Citation:

PANGAEA.854844

Name: Annotated record of the detailed examination of Mn deposits from RIDA cruise stations
Creator: Muséum National d'Histoire Naturelle (MNHN)
Published: 1984
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

The cores and dredges described at this site were taken on the RIDA cruise from 1 May until 25 May 1984 by the Muséum National d'Histoire Naturelle from the R/V Marion Dufresne. A total of 45 cores and dredges were recovered along with underwater camera runs. They are available at MNHN for sampling and study.

Related to:

MNHN (1984): RIDA Cruise - MD39, R/V Marion Dufresne, Core list. Muséum National d'Histoire Naturelle, Paris, unpublished, https://geocores.mnhn.fr/index.php?catid=7&blogid=1

Project(s):

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

Coverage:

Median Latitude: -15.877084 * Median Longitude: 41.633333 * South-bound Latitude: -19.833330 * West-bound Longitude: 41.483330 * North-bound Latitude: -12.216670 * East-bound Longitude: 42.133330

Date/Time Start: 1984-05-13T00:00:00 * Date/Time End: 1984-05-23T00:00:00

Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 1.600 m

Event(s):

MD39-08 (CS840027) * Latitude: -12.216670 * Longitude: 41.483330 * Date/Time: 1984-05-13T00:00:00 * Elevation: -1210.0 m * Location: Indian Ocean * Campaign: (RIDA - Ride de Davie) * Basis: Marion Dufresne (1972) * Method/Device: Photo/Video (PV)

MD39-12 (DR840026) * Latitude: -14.133330 * Longitude: 41.483330 * Date/Time: 1984-05-14T00:00:00 * Elevation: -810.0 m * Location: Indian Ocean * Campaign: (RIDA - Ride de Davie) * Basis: Marion Dufresne (1972) * Method/Device: Dredge (DRG)

MD39-12d (MD-DR840026) * Latitude: -14.133330 * Longitude: 41.483330 * Date/Time: 1984-05-14T00:00:00 * Elevation: -810.0 m * Recovery: 175 kg * Location: Indian Ocean * Campaign: (RIDA - Ride de Davie) * Basis: Marion Dufresne (1972) * 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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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		MNHN
2	Latitude of event	Latitude		MNHN
3	Longitude of event	Longitude		MNHN
4	Elevation of event	Elevation	m	MNHN
5	Identification	ID		MNHN
6	DEPTH, sediment/rock	Depth sed	m	MNHN		Geocode
7	Depth, top/min	Depth top	m	MNHN
8	Depth, bottom/max	Depth bot	m	MNHN
9	Position	Position		MNHN	Visual description
10	Deposit type	Deposit type		MNHN
11	Quantity of deposit	Quantity		MNHN
12	Size	Size		MNHN
13	Substrate type	Substrate		MNHN
14	Sediment type	Sediment		MNHN
15	Comment	Comment		MNHN
16	Description	Description		MNHN

License:

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

Size:

161 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 Depth top [m]	8 Depth bot [m]	9 Position	10 Deposit type	11 Quantity	12 Size	13 Substrate	14 Sediment	15 Comment	16 Description
MD39-08	-12.2167	41.4833	-1210	MD-CS840027-1	0.000	0.00	0.00	Surface	Mn crust	Several		Rock outcrop			Camera - Rock outcrops (with oxyde crust: right view)
MD39-12	-14.1333	41.4833	-810	MD-GS840579-1	0.000	0.00	0.00	Surface	Mn crust		5.0 cm thick		Hardground		0-5 Layered polymetallic crust
MD39-12d	-14.1333	41.4833	-810	MD-DR840026-1	0.000	0.00	0.00	Surface	Mn crust	Several		Rock; basalt boulder	Calcareous ooze	Neogene calcareous ooze	Alkaline vesicular basalt boulders (with polymetallic oxyde crusts) with clinopyroxene phenocrysts set in a ground mass including plagioclase, K-feldspath and clinopyroxene
MD39-17	-14.7667	41.5000	-1905	MD-GS840583-1	0.000	0.00	0.00	Surface	Mn nodule	Several	2.0-3.0 cm		Calcareous ooze	Brown calcareous ooze with coccoliths, discoasters (10-15%) and foraminifers. Siliciclastics, oxydes and amorphous components.	0-0 Polymetallic nodules (2-3cm) on the interface
MD39-17d	-14.7667	41.4833	-2255	MD-DR840028-1	0.000	0.00	0.00	Surface	Mn crust	Few		Rock; tuffite	Calcareous ooze	Calcareous pelagic eocene (NP20 / NN2) oozes,	Tuffites with sometimes polymetallic crusts.
MD39-18a	-15.1333	41.5833	-1880	MD-GS840585-1	0.000	0.00	0.00	Surface	Mn crust	Several	Thin	Rock; sandstone fragmemt	Detrital clay	Green detrital-rich clay with volcanic glass. Oxydes and amorphous components.	0-0 Sandstone fragments with thin polymetallic crust
MD39-18b	-15.1333	41.5667	-1940	MD-GS840586-1	0.000	0.00	0.00	Surface	Mn crust	1		Sediment	Clayed calcareous ooze	Clayed calcareous ooze with coccoliths, discoasters and siliciclastics. Foraminifers and oxides.	0-0 Oxyded crust at the top. Angular polymetallic nodules with rocky nuclei
MD39-18b	-15.1333	41.5667	-1940	MD-GS840586-2	0.000	0.00	0.00	Surface	Mn nodule	Several		Core; rock	Clayed calcareous ooze	Clayed calcareous ooze with coccoliths, discoasters and siliciclastics. Foraminifers and oxides.	0-0 Oxyded crust at the top. Angular polymetallic nodules with rocky nuclei
MD39-19	-15.8000	41.6500	-1895	MD-GS840587-1	0.000	0.00	0.00	Surface	Mn nodule	1	4.0 cm		Calcareous ooze	Brown (10YR5/4 and beige (10YR7/4) calcareous oozes with coccoliths, discoasters (15%) and foraminifers. Biogenous silica at the top.	0-0 One angular polymetallic nodule (4 cm)
MD39-22	-15.8167	41.6167	-2050	MD-GS840590-1	1.600	1.50	1.70	Buried	Mn crust			Rock; hardened sand	Foraminiferal sand	Beige foraminiferal sand. Coccoliths. Amorphous component and coarse detrital minerals.	150-170 Hard bottom made of a polymetallic crust with layered structure and foraminiferal sand.
MD39-24	-16.2000	41.6167	-1837	MD-GS840592-1	0.000	0.00	0.00	Surface	Mn crust	1	10 cm thick		Hard gound		0-10 Hard ground. Polymetallic crust
MD39-24c	-16.2167	41.6500	-850	MD-CS840028-1	0.000	0.00	0.00	Surface	Mn crust	Several		Rock outcrop			Camera - Rock outcrops with thick Mn oxyde crust and coral accumulations.
MD39-25	-16.8167	41.7167	-2580	MD-GS840595-1	0.000	0.00	0.00	Surface	Mn coating	Several		Filled burrrow	Calcareous ooze	Brown calcareous ooze with coccoliths and foraminifers. Discoasters (5%) and amorphous components. Traces of biogenous silica.	0-0 Tubular polymetallic concretions (oxyded burrows?)
MD39-26	-17.2167	41.6333	-1890	MD-GS840596-1	0.000	0.00	0.00	Surface	Mn crust	1		Hard ground			0-0 Hard ground. Polymetallic crust. Traces of recristallized limestone.
MD39-29	-17.9333	41.7667	-1090	MD-DR840036-1	0.000	0.00	0.00	Surface	Mn coating	Several		Rock; coraline limestone	Calcareous ooze		Pleistocene deposits: calcareous oozes and coralline limestones with polymetallic coating traces.
MD39-30	-17.9167	41.7667	-700	MD-CS840029-1	0.000	0.00	0.00	Surface	Mn crust	Several	Thick	Rock outcrop	Calcareous ooze	Light coloured ooze	Camera -Rock outcrops with oxide thick crust and light coloured ooze.
MD39-34	-19.8333	42.1333	-1950	MD-GS840597-1	0.000	0.00	0.00	Surface	Mn coating	Several		Filled burrrow	Calcareous ooze	Brown calcareous ooze with coccoliths and foraminifers. Biogenous silica and amorphous components.	0-0 Tubular polymetallic concretions (oxyded burrows?)