Citation:

dsdp.proc.8.109.1971

Name: Annotated record of the detailed examination of Mn deposits from DSDP Site 74, Leg 8 (Core 74-12)
Published: 1971
License: https://creativecommons.org/licenses/by/3.0/

Always quote citation above when using data! You can download the citation in several formats below.

Published: 1971 (exact date unknown) • DOI registered: 2016-12-15

RIS Citation BibTeX Citation Text Citation ShareShow Map Google Earth

Abstract:

Site 74 is located 250 miles northeast of the Marquesas Islands and lies 270 miles south of Site 73 and 400 miles north of Site 75. It is one 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. Site 74 is located near the center of a relatively flat area about 3 miles across. There is some indication of minor deformation at the site.

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: -6.236700 * Longitude: -136.096700

Date/Time Start: 1969-11-21T00:00:00 * Date/Time End: 1969-11-21T00:00:00

Minimum DEPTH, sediment/rock: 103.44 m * Maximum DEPTH, sediment/rock: 103.44 m

Event(s):

8-74 * Latitude: -6.236700 * Longitude: -136.096700 * Date/Time: 1969-11-21T00:00:00 * Elevation: -4431.0 m * Penetration: 102 m * Recovery: 65.7 m * Location: South Pacific/BASIN * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 11 cores; 92 m cored; 0 m drilled; 71.4 % 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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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	Substrate type	Substrate
8	Sediment type	Sediment
9	Comment	Comment
10	Description	Description

License:

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

Size:

9 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 Substrate	8 Sediment	9 Comment	10 Description
8-74-12-3,44-1	8-74-12-3,44	103.44	Buried	Mn coating	1	Fragment; igneous	Ash	A ginger colored ash, composed of devitrified shards, is present within the lowermost zone of the basal iron oxide layer (Middle eocene)	One piece of an igneous rock of possible basaltic or slightly more acid composition which shows evidence of coating by iron-manganese oxide. ( SITE 74 Core 12 Cored interval: 100-102 m, page 660 )