Citation:

dsdp.proc.7.109.1971

Name: Annotated record of the detailed examination of Mn deposits from DSDP Site 67, Leg 7 (Cores 67-1, 67A-2)
Published: 1971
License: https://creativecommons.org/licenses/by/3.0/

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

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Abstract:

Site 67 is on the Hawaiian Arch, in the general region selected for one of the Mohole Project sites. Therefore, intensive geophysical surveys have been made in the area. The objectives were to penetrate the entire sedimentary sequence to basement in order to learn the petrology and ages of the sediments and of the seismic reflectors, and to obtain samples of the underlying basement rocks. Well consolidated and bedded volcanic sandstone and mudstone, and claystone were found to extend from the sea floor to a depth of 60 meters, where a layer of hard brown porcelanite stopped the bit. Displaced radiolarians in mud from a core at 60 meters indicate sediments of early Eocene or late Paleocene age are present somewhere above that depth.

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: 24.376000 * Longitude: -157.648000

Date/Time Start: 1969-09-28T00:00:00 * Date/Time End: 1969-09-28T00:00:00

Minimum DEPTH, sediment/rock: 1.6 m * Maximum DEPTH, sediment/rock: 60.1 m

Event(s):

7-67 * Latitude: 24.376000 * Longitude: -157.648000 * Date/Time: 1969-09-28T00:00:00 * Elevation: -4486.0 m * Penetration: 5 m * Recovery: 1.5 m * Location: North Pacific Ocean * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 1 cores; 5 m cored; 0 m drilled; 30 % recovery

7-67A * Latitude: 24.376000 * Longitude: -157.648000 * Date/Time: 1969-09-28T00:00:00 * Elevation: -4484.0 m * Penetration: 60.5 m * Recovery: 1.6 m * Location: North Pacific Ocean * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 2 cores; 9.5 m cored; 0 m drilled; 16.8 % 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	Sediment type	Sediment
9	Comment	Comment
10	Description	Description

License:

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

Size:

15 data points

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