Citation:

dsdp.proc.38.1976

Name: Annotated record of the detailed examination of Mn deposits from DSDP Leg 38 (Holes 337, 345, 347, 349)
Published: 1976
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Because of its position between the North Atlantic and the Arctic oceans, its young age, small size, and diversity of geological structures, the Norwegian-Greenland Sea provided a unique target for deep drilling on Leg 38 of the Glomar Challenger. From studies of the sediments and basement rocks it was expected to gain insight particularly as to the following: 1) The tectonic framework and evolution of this area with special emphasis on the continental margins and on questions concerned with shifts of spreading axis and existence of foundered continental areas. 2) The youngest times of existence of land bridges between Eurasia and North America and the effect these land bridges had on water circulation and paleoclimates. 3) The date of the initiation of glaciation and dates of glacial advances and retreats. 4) Description of the Tertiary marine microfauna and microflora of the Norwegian-Greenland Sea, which are essentially unknown at present, and investigation of their similarity with microfauna and microflora from other areas.

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: 68.446875 * Median Longitude: -5.843225 * South-bound Latitude: 64.871700 * West-bound Longitude: -8.696700 * North-bound Latitude: 69.871800 * East-bound Longitude: -1.237700

Date/Time Start: 1974-08-11T00:00:00 * Date/Time End: 1974-09-13T00:00:00

Minimum DEPTH, sediment/rock: 27.80 m * Maximum DEPTH, sediment/rock: 732.32 m

Event(s):

38-337 * Latitude: 64.871700 * Longitude: -5.341800 * Date/Time: 1974-08-11T00:00:00 * Elevation: -2631.0 m * Penetration: 132.5 m * Recovery: 90.2 m * Location: North Atlantic/Norwegian Sea/BASIN * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 14 cores; 123 m cored; 0 m drilled; 73.3 % recovery

38-345 * Latitude: 69.837200 * Longitude: -1.237700 * Date/Time: 1974-09-01T00:00:00 * Elevation: -3195.0 m * Penetration: 802 m * Recovery: 188.9 m * Location: North Atlantic/Norwegian Sea/BASIN * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 36 cores; 336.5 m cored; 0 m drilled; 56.1 % recovery

38-347 * Latitude: 69.871800 * Longitude: -8.696700 * Date/Time: 1974-09-07T00:00:00 * Elevation: -745.0 m * Penetration: 190 m * Recovery: 12.1 m * Location: North Atlantic/Norwegian Sea/RIDGE * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 4 cores; 24 m cored; 0 m drilled; 50.6 % 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

License:

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

Size:

81 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
38-337	38-337-8-2,50-1	38-337-8-2,50	68.00	In sediment	Mn micronodule	Several		Clay	Yellow (5Y 7/6), dusky yellow (5Y 6/4) clay with claystone clasts	Disseminated Mn in the form of small manganese concretions, but no fossils. (Site 337, Core 8, Cored Interval: 66.0-75.5 m, page 132)
38-345	38-345-4-1,80-1	38-345-4-1,80	27.80	In sediment	Mn micronodule	Few		Mud	Medium gray to olive gray mud (Cenozoic)	2% Mn micronodules (Site 345, Core 4, Cored Interval: : 27.0-36.5 m, page 468)
38-345	38-345-5-CC,0-1	38-345-5-CC,0	42.60	Buried	Mn crust	Several	Consolidated sediment	Clay	Zeolite clay (Lower Miocene)	Dark crusty (manganese) fragments of undisintegrated zeolitic sediment and common occurrence of fish teeth (Site 345, Core 4, Cored Interval: : 36.5-46.0 m, page 469)
38-345	38-345-19-5,50-1	38-345-19-5,50	452.00	In sediment	Mn micronodule	Several		Mud	Dark greenish gray mud or mudstone (Oligocene)	3% Mn micronodules (Site 345, Core 19, Cored Interval: : 445.0-454.5 m, page 475)
38-345	38-345-27-21,112-1	38-345-27-21,112	713.62	In sediment	Mn micronodule	Few		Mud	Dark greenish gray sandy mudstone (Upper Eocene)	1% Mn micronodules (Site 345, Core 27, Cored Interval: : 711.0-720.5 m, page 479)
38-345	38-345-29-2,82-1	38-345-29-2,82	732.32	In sediment	Mn micronodule	Few		Mud	Olive black sandy mudstone (Eocene)	2% Mn micronodules (Site 345, Core 29, Cored Interval: : 730.0-739.5 m, page 480)
38-347	38-347-4-2,42-1	38-347-4-2,42	188.92	In sediment	Mn micronodule	Few		Hard ground	Olive black, lithic rich sandy limestone (Eocene)	1% Mn micronodule (Site 347, Core 4, Cored Interval: 187.0-190.0, page 571)
38-349	38-349-5-61,147-1	38-349-5-61,147	119.77	In sediment	Mn micronodule	Few		Mud	Olive gray sandy mud (Lower Tertiary)	2% Mn micronodule (Site 349, Core 5, Cored Interval: 110.5-120.0 m, page 577)
38-349	38-349-9-1,82-1	38-349-9-1,82	149.32	In sediment	Mn micronodule	Several		Mud	Terrigenous olive gray mustone (Lower Tertiary)	3% Mn micronodule (Site 349, Core 9, Cored Interval: 1148.5-158.0 m, page 579)
38-349	38-349-9-3,75-1	38-349-9-3,75	152.25	In sediment	Mn micronodule	Several		Mud	Sandy mudstone (Lower Tertiary)	3% Mn micronodule (Site 349, Core 9, Cored Interval: 1148.5-158.0 m, page 579)