Citation:

dsdp.proc.5657.1980

Name: Annotated record of the detailed examination of Mn deposits from DSDP Leg 56 (Holes 434B and 436)
Published: 1980
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

The Japan Trench area was identified a favorable place for studying convergent margins during the initial deliberations of the IPOD Active Margins Panel. The Leg 56-57 DSDP drill sampling along the Japan Trench transect has indicated that material tectonically accreted during the present convergent episode is limited to a surprisingly small zone. The limits seem well established by the seaward extent of crust with continental thickness and lithologies and by the age and thickness of a terrigenous slope apron covering the presumed but probably unsampled accreted oceanic material.

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: 39.840250 * Median Longitude: 144.829550 * South-bound Latitude: 39.747800 * West-bound Longitude: 144.101300 * North-bound Latitude: 39.932700 * East-bound Longitude: 145.557800

Date/Time Start: 1977-09-12T00:00:00 * Date/Time End: 1977-10-01T00:00:00

Minimum DEPTH, sediment/rock: 358.28 m * Maximum DEPTH, sediment/rock: 581.93 m

Event(s):

56-434B * Latitude: 39.747800 * Longitude: 144.101300 * Date/Time: 1977-09-12T00:00:00 * Elevation: -5986.0 m * Penetration: 637.5 m * Recovery: 63.2 m * Location: North Pacific/TRENCH * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 32 cores; 295.5 m cored; 47.5 m drilled; 21.4 % recovery

56-436 * Latitude: 39.932700 * Longitude: 145.557800 * Date/Time: 1977-10-01T00:00:00 * Elevation: -5240.0 m * Penetration: 397.5 m * Recovery: 240.8 m * Location: North Pacific/RIDGE * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 42 cores; 397.5 m cored; 0 m drilled; 60.6 % 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
12	File name	File name
13	Uniform resource locator/link to image	URL image

License:

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

Size:

77 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	12 File name	13 URL image
56-434B	56-434B-30-1,5-10-1	56-434B-30-1,5-10	561.57	Buried	Mn-P2O5 nodule	1		Tuffite	Olive grey tuffite (Upper Miocene)	Manganese carbonate and P2O5 rich marlstone nodule (7.43% Mn) (Site 434B, Core 30, Cored Interval: 561.5-571.0 m, page 385)
56-434B	56-434B-32-CC,12-14-1	56-434B-32-CC,12-14	581.93	Buried	Mn-P2O5 nodule	1		Tuffite	Dusky yellow-green tuffite (Upper Miocene)	Manganese carbonate and P2O5 rich marlstone nodule (17.42% Mn) (Site 434B, Core 32, Cored Interval: 580.5-590.0 m, page 385)
56-436	56-436-38-6,76-80-1	56-436-38-6,76-80	358.28	In sediment	Mn rich layer	1		Mudstone	Yellowish-brown radiolarian mudstone	Contains abundant amorphous iron-manganese hydroxides(Site 436, Core 38, Cored Interval: 350.0-359.5 m, page 428)
56-436	56-436-39-1,69-1	56-436-39-1,69	360.19	In sediment	Mn micronodule	Many		Clay	Chocolate brown zeolitic red clay (Middle Miocene)	These clays are without microfossils but contain some fish teeth and many micronodules (Site 436, Core 39, Cored Interval: 359.5-369.0 m, page 428)
56-436	56-436-39-1,111-112-1	56-436-39-1,111-112	360.61	Buried	Mn nodule	1		Clay	Chocolate brown zeolitic red clay (Middle Miocene)	Brown black (5YR2/1) manganese nodule (Site 436, Core 39, Cored Interval: 359.5-369.0 m, page 428)
56-436	56-436-39-4,75-98-1	56-436-39-4,75-98	364.86	In sediment	Mn rich layer	1		Clay	Black clay (Middle Miocene)	Interbedded brownish black manganiferous pelagic clay (Site 436, Core 39, Cored Interval: 359.5-369.0 m, page 428)	Fig12_Arthur.jpg	Fig12_Arthur.jpg
56-436	56-436-39-6,13-15-1	56-436-39-6,13-15	366.82	In sediment	Mn micronodule	Several	Core; foraminifera	Clay	Black zeolitic pelagic clay (Middle Miocene)	Fish bones and teeth, and manganese micronodules. Some mold small foraminifera tests (Site 436, Core 39, Cored Interval: 359.5-369.0 m, page 428)	Plate9_Thompson.jpg	Plate9_Thompson.jpg
56-436	56-436-40-4,54-58-1	56-436-40-4,54-58	374.06	In sediment	Mn rich layer	1		Clay	Yellowish-brown red clay	Abundant amorphous iron-manganese hydroxides (Site 436, Core 40, Cored Interval: 369.0-378.5 m, page 429)
56-436	56-436-41-1,10-12-1	56-436-41-1,10-12	378.61	In sediment	Mn rich layer	1		Clay	Black clay (Cretaceous)	Abundant amorphous iron-manganese hydroxides (Site 436, Core 41, Cored Interval: 378.5-388.0 m, page 429)