Citation:

PANGAEA.875761

Name: Annotated record of the detailed examination of Mn deposits from DSDP Leg 91 (Holes 595, 595A, 596, 596A)
Published: 1987
License: https://creativecommons.org/licenses/by/3.0/

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Published: 1987 (exact date unknown) • DOI registered: 2017-06-27

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Abstract:

Sites 595 and 596 of DSDP Leg 91 are located in one of the most poorly studied tracts of seafloor in the world at the time of the survey. During a preparation survey done by the R/V Melville a particular question of geologic regional significance was the lithologic nature of the "reverberant layer" detected in the Southwest Pacific Basin, especially to the north of the site. The drilling also beared on two important aspects of the oceanic crustal composition: the chemistry and petrology of the lavas erupted at rapidly spreading ridges, and the nature and degree of alteration experienced by those lavas over the 100+ m.y. of their posteruptive history.

Related to:

Adair, Richard G; Burnett, Mark S; Jordan, Thomas H; Kim, Isaac; Lerner-Lam, Arthur; Menard, H William; Mills, William; Natland, J; Orcutt, John A; Prévöt, Richard; Riedesel, Mark A; Ritzwoller, Michael H; Rosencrantz, Eric J; Shaw, Peter R; Shearer, Peter M; Smith, Deborah K; Toy, Kenneth M; Van Bruggen, C; Whitmarsh, Robert B; Willoughby, David F (1987): Initial Reports of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, XCI, 494 pp, https://doi.org/10.2973/dsdp.proc.91.1987

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: -23.837850 * Median Longitude: -165.591700 * South-bound Latitude: -23.853300 * West-bound Longitude: -165.654500 * North-bound Latitude: -23.822300 * East-bound Longitude: -165.527000

Date/Time Start: 1983-01-21T00:00:00 * Date/Time End: 1983-02-12T00:00:00

Minimum DEPTH, sediment/rock: 0.50 m * Maximum DEPTH, sediment/rock: 72.04 m

Event(s):

91-595 * Latitude: -23.822500 * Longitude: -165.530800 * Date/Time: 1983-01-21T00:00:00 * Elevation: -5596.0 m * Penetration: 32.5 m * Recovery: 0.1 m * Location: South Pacific Ocean * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 1 cores; 0.5 m cored; 0 m drilled; 20 % recovery

91-595A * Latitude: -23.822300 * Longitude: -165.527000 * Date/Time: 1983-01-21T00:00:00 * Elevation: -5614.0 m * Penetration: 88.5 m * Recovery: 37.2 m * Location: South Pacific Ocean * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 12 cores; 88.5 m cored; 0 m drilled; 42 % recovery

91-596 * Latitude: -23.853300 * Longitude: -165.654500 * Date/Time: 1983-02-12T00:00:00 * Elevation: -5701.0 m * Penetration: 76.1 m * Recovery: 41.3 m * Location: South Pacific Ocean * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 66.5 m cored; 9.6 m drilled; 62.1 % 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	Size	Size
9	Substrate type	Substrate
10	Sediment type	Sediment
11	Comment	Comment
12	Description	Description

License:

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

Size:

158 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 Size	9 Substrate	10 Sediment	11 Comment	12 Description
91-595	91-595A-H1-CC,0-1	91-595A-H1-CC,0	0.50	Surface	Mn nodule	4	1.0-3.0 cm	Core; consolidated sediment	Clay	Brown pelagic clay	4 black manganese nodules (1.0-3.0 cm) nucleated on sand-sized, manganese-crusted grains of pelagic clay. (Site 595, Core H1, Core Interval: 0.5-32.5 m, page 229)
91-595A	91-595A-2-CC,0-1	91-595A-2-CC,0	12.00	Buried	Mn nodule	Several			Clay	Dark reddish brown zeolitic pelagic clay	Brownish to black Mn nodules (possible caving?) (Site 595A, Core 2, Core Interval: 2.8-12.2 m, page 229)
91-595A	91-595A-4-3,10-1	91-595A-4-3,10	24.90	In sediment	Mn micronodule	Several			Clay	Dark reddish brown zeolitic metalliferous pelagic clay (Mesozoic)	5% Mn micronodules (Site 595A, Core 3, Core Interval: 21.8-31.4 m, page 230)
91-595A	91-595A-5-1,10-1	91-595A-5-1,10	31.50	In sediment	Mn micronodule	Several			Clay	Dark reddish brown zeolitic metalliferous pelagic clay with scattered pieces of porcellanite (Mesozoic)	5% Mn micronodules (Site 595A, Core 5, Core Interval: 31.4-38.0 m, page 231)
91-595A	91-595A-6-CC,0-1	91-595A-6-CC,0	38.10	In sediment	Mn micronodule	Several			Clay	Radiolarian-bearing, dark reddish brown zeolitic metalliferous pelagic clay with scattered pieces of porcellanite	5% Mn micronodules (Site 595A, Core 6, Core Interval: 38.0-42.0 m, page 231)
91-595A	91-595A-9-1,70-1	91-595A-9-1,70	60.90	In sediment	Mn micronodule	Many			Clay	Dark reddish brown to black metalliferous pelagic clay	20% Mn micronodules (Site 595A, Core 9, Core Interval: 60.2-69.8 m, page 232)
91-596	91-596-1-1,50-1	91-596-1-1,50	0.50	Surface	Mn nodule	1			Clay	Dark yellow brown zeolitic pelagic clay (Upper Miocene)	An Fe-Mn nodule recovered in the upper core void. Probably from surface. (Site 596, Core 1, Core Interval: 0.0-5.5 m, page 257)
91-596	91-596-1-4,122-1	91-596-1-4,122	5.72	Buried	Mn crust	1		Consolidated sediment	Clay	Dark yellow brown zeolitic pelagic clay grading to dark reddish brown (Middle Miocene)	Fe-Mn encrusted hardground occur (Site 596, Core 1, Core Interval: 0.0-5.5 m, page 257)
91-596	91-596-1-4,130-1	91-596-1-4,130	5.80	Buried	Mn nodule	1		Core; consolidated sediment	Clay	Dark yellow brown zeolitic pelagic clay (Middle Miocene)	Black Mn nodule, black (7.5YR N2) with granulated outer surface and smooth inner surface. Core of Fe-Mn coated grains. (Site 596, Core 1, Core Interval: 0.0-5.5 m, page 257)
91-596	91-596-2-2,42-1	91-596-2-2,42	7.42	Buried	Mn crust	1		Consolidated sediment	Clay	Dark reddish brown zeolitic pelagic clay (Miocene)	Fe-Mn encrusted hardground occur (Site 596, Core 2, Core Interval: 5.5-15.1 m, page 257)
91-596	91-596-3-3,70-1	91-596-3-3,70	18.80	In sediment	Mn micronodule	Few			Clay	Reddish black zeolitic metalliferous pelagic clay (Paleocene)	4% Mn micronodules (Site 596, Core 3, Core Interval: 15.1-24.7 m, page 258)
91-596	91-596-3-6,70-71-1	91-596-3-6,70-71	23.30	In sediment	Mn micronodule	Few			Clay	Very dusky red zeolitic metalliferous pelagic clay (Cretaceous)	3% Mn micronodules (Site 596, Core 3, Core Interval: 15.1-24.7 m, page 258)
91-596	91-596-5-3,51-1	91-596-5-3,51	37.81	In sediment	Mn micronodule	Several			Clay	Very dusky red zeolitic metalliferous pelagic clay (Cretaceous)	5% Mn micronodules (Site 596, Core 5, Core Interval: 34.3-39.8 m, page 258)
91-596	91-596-6-1,96-1	91-596-6-1,96	40.76	In sediment	Mn micronodule	Few			Clay	Very dusky red zeolitic metalliferous pelagic clay (Cretaceous)	3% Mn micronodules (Site 596, Core 6, Core Interval: 39.8-49.4 m, page 259)
91-596	91-596-7-CC,0-1	91-596-7-CC,0	49.50	In sediment	Mn micronodule	Many			Clay	Drilling breccia of very dusky red zeolitic metalliferous pelagic clay with porcellanite and chert (Cretaceous)	10% Mn micronodules (Site 596, Core 7, Core Interval: 49.4-59.0 m, page 259)
91-596	91-596-8-CC,0-1	91-596-8-CC,0	59.10	In sediment	Mn micronodule	Many			Clay	Drilling breccia of very dusky red zeolitic metalliferous pelagic clay with chert (Cretaceous)	10% Mn micronodules (Site 596, Core 8, Core Interval: 59.0-68.6 m, page 260)
91-596	91-596-9-1-1,3A-1	91-596-9-1-1,3A	70.50	Buried	Mn coating	Several		Cobble; igneous	Hard ground	Cobbles of fine-grained aphyric igneous rock are fractured and veined	Fracture and vein surfaces are stained with brown iron-hydroxides and black manganese oxides, plus a small amount of pale green clay mineral. (Site 596, Core 9, Core Interval: 68.6-76.1 m, page 261)
91-596A	91-596A-1-3,71-1	91-596A-1-3,71	70.71	In sediment	Mn micronodule	Several			Clay	Reddish black metalliferous pelagic clay mixed with pieces of chert and basalt (Mesozoic)	8% Mn micronodules (Site 596A, Core 1, Core Interval: 68.6-76.1 m, page 262)
91-596A	91-596A-1-4,54-1	91-596A-1-4,54	72.04	In sediment	Mn micronodule	Many			Clay	Reddish black metalliferous pelagic clay mixed with pieces of chert and basalt (Mesozoic)	10% Mn micronodules (Site 596A, Core 1, Core Interval: 68.6-76.1 m, page 262)