Citation:

dsdp.proc.44.1978

Name: Annotated record of the detailed examination of Mn deposits from DSDP Leg 44 (Holes 389, 390, 390A, 392 and 392A)
Published: 1978
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

The western part of the North Atlantic Ocean holds clues to some of the most intriguing questions in marine geology. But because the geologic problems are many and varied, the sites of Leg 44 were multipurpose in nature. In particular, some of the targets were : 1) the Blake Nose, a spur of the Blake Plateau, to determine the nature, age, and origin of reef-like structures recognized on seismic profiles and 2) the Blake Outer Ridge, a long low ridge of sediments that forms the eastern boundary of the Blake-Bahama Basin, where we hoped to study the stratigraphy and sample supposed clathrates.

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: 30.049580 * Median Longitude: -76.134680 * South-bound Latitude: 29.910500 * West-bound Longitude: -76.178000 * North-bound Latitude: 30.142300 * East-bound Longitude: -76.092800

Date/Time Start: 1975-08-28T00:00:00 * Date/Time End: 1975-09-23T00:00:00

Minimum DEPTH, sediment/rock: 1.05 m * Maximum DEPTH, sediment/rock: 186.25 m

Event(s):

44-389 * Latitude: 30.142300 * Longitude: -76.092800 * Date/Time: 1975-08-28T00:00:00 * Elevation: -2714.0 m * Penetration: 39.5 m * Recovery: 3.5 m * Location: North Atlantic/CONT RISE * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 1 cores; 9.5 m cored; 0 m drilled; 36.8 % recovery

44-390 * Latitude: 30.142300 * Longitude: -76.112300 * Date/Time: 1975-08-29T00:00:00 * Elevation: -2665.0 m * Penetration: 206 m * Recovery: 27.1 m * Location: North Atlantic * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 9 cores; 82.5 m cored; 9.5 m drilled; 32.9 % recovery

44-390A * Latitude: 30.142300 * Longitude: -76.112300 * Date/Time: 1975-08-29T00:00:00 * Elevation: -2665.0 m * Penetration: 142.5 m * Recovery: 86.3 m * Location: North Atlantic * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 14 cores; 133 m cored; 0 m drilled; 64.9 % 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
13	File name	File name
14	Uniform resource locator/link to image	URL image

License:

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

Size:

188 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	13 File name	14 URL image
44-389	44-389-1-11,100-1	44-389-1-11,100	31.00	Buried	Mn staining	Several	Fragment	Shell	Sand	Muddy foraminifer sand, medium grained (Quaternary)	Contains Mn stained shell fragments (Site 389, Core 1, Cored Interval: 30.0-39.5 m, page 110)
44-389	44-389-1-11,132-1	44-389-1-11,132	31.32	In sediment	Mn micronodule	Few			Sand	Manganiferous foraminiferal sand (Quaternary)	3% Mn micronodules (Site 389, Core 1, Cored Interval: 30.0-39.5 m, page 110)
44-389	44-389-1-2,90-1	44-389-1-2,90	32.40	In sediment	Mn micronodule	Few			Sand	Foraminiferal sand (Quaternary)	5% Mn micronodules (Site 389, Core 1, Cored Interval: 30.0-39.5 m, page 110)
44-389	44-389-1-2,90-2	44-389-1-2,90	32.40	Buried	Mn nodule	Several	1.0 cm		Sand	Manganiferous foraminiferal sand (Quaternary)	Mn nodules up to 1.0 cm and phosphate clasts (Site 389, Core 1, Cored Interval: 30.0-39.5 m, page 110)
44-389	44-389-1-2,90-3	44-389-1-2,90	32.40	Buried	Mn coating	Several		Shell	Sand	Manganiferous foraminiferal sand (Quaternary)	Mn coated mollusk shells (Site 389, Core 1, Cored Interval: 30.0-39.5 m, page 110)
44-389	44-389-1-3,0-40-1	44-389-1-3,0-40	33.20	Buried	Mn nodule	Several	2.0 cm		Sand	Gravelly manganiferous foraminiferal sand (Quaternary)	Mn nodules common up to 2.0 cm and phosphate clasts (Site 389, Core 1, Cored Interval: 30.0-39.5 m, page 110)
44-389	44-389-1-3,0-40-2	44-389-1-3,0-40	33.20	Buried	Mn coating	Several		Shell	Sand	Gravelly manganiferous foraminiferal sand (Quaternary)	Gravel is black mollusk shells (Site 389, Core 1, Cored Interval: 30.0-39.5 m, page 110)
44-389	44-389-1-3,50-1	44-389-1-3,50	33.50	Buried	Mn nodule	Many	Small		Gravel	Sandy gravel. Sand is forams (Quaternary)	Gravel is Mn nodules and phosphorite (Site 389, Core 1, Cored Interval: 30.0-39.5 m, page 110)
44-389	44-389-1-3,50-2	44-389-1-3,50	33.50	Buried	Mn coating	Many		Shell	Gravel	Sandy gravel. Sand is forams (Quaternary)	Gravel contains mollusk shells (Site 389, Core 1, Cored Interval: 30.0-39.5 m, page 110)
44-389	44-389-1-3,50-150-1	44-389-1-3,50-150	34.50	Buried	Mn nodule	Several	Up to 5.0 cm	Core; consolidated sediment	Gravel	Mn nodule and phosphorite clasts gravel (Quaternary)	Up to 5 cm Mn nodules, spherical or ellipsoidal, matte to lustrous surface and a smooth or botryoidal texture. Poor layering and nuclei which appear to be claystone clasts less than 5 mm. (Site 389, Core 1, Cored Interval: 30.0-39.5 m, page 110)
44-390	44-390-1,100,110-1	44-390-1,100,110	1.05	Buried	Mn nodule	Several	Up to 1.5 cm		Sand	Gravelly foraminifer sand	Gravel contains Mn nodules to 1.5 cm (Middle Eocene) (Site 390, Core 1, Cored Interval: 0.0-9.5 m, page 112)
44-390	44-390-1,100,110-2	44-390-1,100,110	1.05	Buried	Mn staining	Several	Fragment	Shell	Sand	Gravelly foraminifer sand	Gravel contains mollusk shells and fragments (both white and Mn stained) (Middle Eocene) (Site 390, Core 1, Cored Interval: 0.0-9.5 m, page 112)
44-390	44-390-3-21,105-1	44-390-3-21,105	135.55	Buried	P2O5 nodule	1			Clay	Reddish brown clay with nannofoosil ooze inclusions (Cretaceous)	Black phosphatic nodule with limonitic rim at 105 cm (Site 390, Core 3, Cored Interval: 133.0-142.5 m, page 116)
44-390	44-390-8-41,125-1	44-390-8-41,125	186.25	Buried	Mn nodule	Several			Chalk	Calcareous chalk mixed with sand and ooze. Probable flow-in	Mn nodules (Site 390, Core 8, Cored Interval: 180.5-190.0 m, page 122)
44-390	44-390-8-41,125-2	44-390-8-41,125	186.25	Buried	Mn staining	Several		Shell	Chalk	Calcareous chalk mixed with sand and ooze. Probable flow-in	Fragments of Mn stained mollusk shells with planktonic forams (Site 390, Core 8, Cored Interval: 180.5-190.0 m, page 122)
44-390A	44-390A-1-11,102-1	44-390A-1-11,102	10.52	In sediment	Mn micronodule	Few			Ooze	Calcareous nannofossil ooze (Middle Eocene)	Authigenic material is scarce and consists mainly of manganese micronodules and a few pyritic grains. (Site 390A, Core 1, Cored Interval: 9.5-19.0 m, page 126)
44-390A	44-390A-10-5,75-1	44-390A-10-5,75	102.15	In sediment	Mn micronodule	Several	Up to 0.5 cm		Ooze	Zeolitic marly nannofossil ooze(Lower Paleocene)	Black sooty to metallic Mn(?) flecks to 5 mm diameter (Site 390A, Core 10, Cored Interval : 95.0-104.5 m, page 142)
44-392	44-392-1-CC,0-1	44-392-1-CC,0	57.50		Mn nodule	Several	Up to 0.5 cm		Hard ground	Fragmented hard ground	Manganese nodules, dull black with rough surface and indistinct laminations, to 5 cm diameter. Nodules are from present sediment surface as evidenced by encrusted living anemone. (Site 392, Core 1, Cored Interval: 47.5-57.0 m, page 360)
44-392	44-392-1-CC,0-2	44-392-1-CC,0	57.50	Buried	Mn staining	1		Limestone	Hard ground	Fragmented hard ground	Mn stained imestone, white (10YR 8/2), soft, muddy or silty with planktonic (Site 392, Core 1, Cored Interval: 47.5-57.0 m, page 360)
44-392A	44-392A-4-CC,9-14-1	44-392A-4-CC,9-14	97.80	Buried	Mn crust	Several		Clast; lime	Lime	Oolithic lime breccia	Angular limestone clasts with laminated dense Fe-rich rims with black ""dendrite"" stains on surface crusts and within cavities which may be manganese oxides (Barremina) (Site 392A, Core 4, Cored Interval : 88.5-98.0 m, page 368)	Fig53_392A.jpg	Fig53_392A.jpg
44-392A	44-392A-5-1,120-1	44-392A-5-1,120	99.20	Buried	Mn crust	1		Clast; lime	Lime	Angular coral rich clasts of pisolitic lime with reddish staining	Laminated Fe-rich crust forms surface across solution etched surface (Site 392A, Core 5, Cored Interval: 98.0-107.5 m, page 370)