Citation:

PANGAEA.870513

Name: Annotated record of the detailed examination of Mn deposits from DSDP Leg 37 (Holes 332B, 334)
Published: 1977
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

DSDP Leg 337 was planned as an attemp at deep penetration of the igneous section of the oceanic crust on the western flank of the FAMOUS (Franco- American Mid-Ocean Undersea Study) area of the Mid-Atlantic Ridge at 36°N. Site 332 is located in Deep Drill Valley approximately 30 km west of the axis of the Mid-Atlantic Ridge at 36°52'N latitude. The principal goal at this site was deep penetration into layer 2 of the ocean crust by multiple re-entry. Site 334 was drilled on a steep east-facing slope in a small, deep basin near the middle of magnetic anomaly 5. In this area, breccias with gabbro and peridotite clasts in a nannofossil-foram ooze matrix are interlayered with the plutonic rocks and may reflect exposure of a melange in or near the Median Valley of the Mid- Atlantic Ridge prior to burial by later basaltic extrusions.

Related to:

Wright, T; Robinson, Paul T; Miles, G A; Hyndman, Roy D; Howe, Robert C; Flower, M; Fischer, Joseph F; Dmitriev, Leonid V; Bougault, Henri; Hall, James M; Aumento, Fabrizio; Melson, William G (1977): Initial Reports of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, XXXVII, 1008 pp, https://doi.org/10.2973/dsdp.proc.37.1977

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):

Deep Sea Drilling Project (DSDP)

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

Coverage:

Median Latitude: 36.957100 * Median Longitude: -34.027750 * South-bound Latitude: 36.878700 * West-bound Longitude: -34.414500 * North-bound Latitude: 37.035500 * East-bound Longitude: -33.641000

Date/Time Start: 1974-06-17T00:00:00 * Date/Time End: 1974-07-14T00:00:00

Minimum DEPTH, sediment/rock: 303.0 m * Maximum DEPTH, sediment/rock: 408.5 m

Event(s):

37-332B * Latitude: 36.878700 * Longitude: -33.641000 * Date/Time: 1974-06-17T00:00:00 * Elevation: -1806.0 m * Penetration: 721.5 m * Recovery: 122.9 m * Location: North Atlantic/VALLEY * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 48 cores; 582.5 m cored; 0 m drilled; 19.4 % recovery

37-334 * Latitude: 37.035500 * Longitude: -34.414500 * Date/Time: 1974-07-14T00:00:00 * Elevation: -2619.0 m * Penetration: 376.5 m * Recovery: 98.1 m * Location: North Atlantic/BASIN * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 27 cores; 253 m cored; 0 m drilled; 38.8 % recovery

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	Method/Device	Comment
1	Event label	Event
2	Identification	ID
3	Sample code/label	Sample label
4	DEPTH, sediment/rock	Depth sed	m		Geocode
5	Position	Position		Visual description
6	Deposit type	Deposit type
7	Quantity of deposit	Quantity
8	Substrate type	Substrate
9	Sediment type	Sediment
10	Comment	Comment
11	Description	Description

License:

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

Size:

18 data points

Data

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

1 Event	2 ID	3 Sample label	4 Depth sed [m]	5 Position	6 Deposit type	7 Quantity	8 Substrate	9 Sediment	10 Comment	11 Description
37-332B	37-332B-16-1,50-1	37-332B-16-1,50	408.5	Buried	Mn coating	Many	Rock; basalt	Hard Ground	Olivine-phyric basalt	Mn incrustations are common. (Site 332B, Core 16, Corde Interval: 408.0-417.5 m, page 156)
37-334	37-334-20-2,80-120-1	37-334-20-2,80-120	303.0	Buried	Mn coating	Few	Rock; limestone	Ooze	Pale yellow (2.5Y 8/4) nannofossil ooze	Core 20 has 40 cm of well-indurated calcareous sediment, two pieces of which are pale yellow (2.5Y 8/4) nannofossil ooze. A few manganese dendrites discolor the surface of the core. (Site 334, Core 20, Corde Interval: 300.5-310.0 m, page 271)