Citation:

dsdp.proc.8.110.1971

Name: Annotated record of the detailed examination of Mn deposits from DSDP Site 75, Leg 8 (Core 75-9)
Published: 1971
License: https://creativecommons.org/licenses/by/3.0/

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Published: 1971 (exact date unknown) • DOI registered: 2016-12-16

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Abstract:

Site 75 is located 300 miles southeast of the Marquesas Islands; 400 miles south of Site 74. It is the southernmost of the sites along the N-S line drilled during Leg 8 to investigate the east-west trending accumulation of sediments centered about 2°N near 140°W. This site is a replacement for the site at 31°S originally chosen by the JOIDES Pacific Advisory Panel (PAP Site 27). The original site was not drilled since a preliminary R/V Argo SCAN survey indicated insufficient sediment thickness.

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:

Latitude: -12.516700 * Longitude: -134.266700

Date/Time Start: 1969-11-24T00:00:00 * Date/Time End: 1969-11-24T00:00:00

Minimum DEPTH, sediment/rock: 77.85 m * Maximum DEPTH, sediment/rock: 77.85 m

Event(s):

8-75 * Latitude: -12.516700 * Longitude: -134.266700 * Date/Time: 1969-11-24T00:00:00 * Elevation: -4181.0 m * Penetration: 82.1 m * Recovery: 68.4 m * Location: South Pacific/CONT RISE * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 10 cores; 81.1 m cored; 0 m drilled; 84.3 % 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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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	Identification	ID
2	Sample code/label	Sample label
3	DEPTH, sediment/rock	Depth sed	m		Geocode
4	Position	Position		Visual description
5	Deposit type	Deposit type
6	Quantity of deposit	Quantity
7	Sediment type	Sediment
8	Comment	Comment
9	Description	Description

License:

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

Size:

8 data points

Data

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

1 ID	2 Sample label	3 Depth sed [m]	4 Position	5 Deposit type	6 Quantity	7 Sediment	8 Comment	9 Description
8-75-9-1	8-75-9	77.85	In sediment	Mn micronodule	Several	Ooze	Yellowish-brown nanno ooze interbedded (sharp contacts) with ferromanganese rich ooze, very dark grayish brown (10YR3/2). Lower level, in direct contact with basalt (Lower Oligocene)	The darker color results from the admixture of variable amounts of iron/manganese (Fe/Mn) oxide particles in an otherwise ""normal"" nannofossil ooze. ( SITE 75 Core 9 Cored interval: 73-82 m, page 700 )