Citation:

PANGAEA.873757

Name: Annotated record of the detailed examination of Mn deposits from DSDP Leg 63 (Holes 468B, 469, 470, 470A, 471, 472)
Published: 1981
License: https://creativecommons.org/licenses/by/3.0/

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Published: 1981 (exact date unknown) • DOI registered: 2017-04-19

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Abstract:

A primary objective of Leg 63 was to investigate the fluctuations of this eastern boundary current along a north-south transect off the Gulf of California. This information would aid in biostratigraphically correlating open-ocean planktonic zones with local California zonations. Spanning the last 30 m.y., the complicated tectonic history of the continental margin off California and Baja California comprises changes from a subduction zone to a transform boundary and then to an inactive margin. A second objective of Leg 63 was to define and clarify this history using information on sedimentation, unconformities, basement ages, and paleomagnetic reconstructions gained from drilling, in conjunction with geophysical data and pre-existing bottom samples.

Related to:

Wolfart, R; Shibata, Tsugio; Poore, Richard Z; Pisciotto, Kenneth A; Verma, Surendra P; Niem, Alan; Leinen, Margaret W; Grechin, V I; Douglas, A G; Denham, C R; Crouch, James; Bukry, David; Barron, John A; Yeats, Robert S; Haq, Bilal U (1981): Initial Reports of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, LXIII, 967 pp, https://doi.org/10.2973/dsdp.proc.63.1981

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: 28.257267 * Median Longitude: -117.031000 * South-bound Latitude: 23.005800 * West-bound Longitude: -120.548300 * North-bound Latitude: 32.623500 * East-bound Longitude: -112.496300

Date/Time Start: 1978-10-21T00:00:00 * Date/Time End: 1978-11-18T00:00:00

Minimum DEPTH, sediment/rock: 91.20 m * Maximum DEPTH, sediment/rock: 709.47 m

Event(s):

63-468B * Latitude: 32.623500 * Longitude: -120.109200 * Date/Time: 1978-10-21T00:00:00 * Elevation: -1737.0 m * Penetration: 415.5 m * Recovery: 103.1 m * Location: North Pacific/ESCARPMENT * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 37 cores; 351.5 m cored; 0 m drilled; 29.3 % recovery

63-469 * Latitude: 32.616700 * Longitude: -120.548300 * Date/Time: 1978-10-27T00:00:00 * Elevation: -3790.0 m * Penetration: 453.5 m * Recovery: 170.2 m * Location: North Pacific/ESCARPMENT * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 49 cores; 436.5 m cored; 9.5 m drilled; 39 % recovery

63-470 * Latitude: 28.907700 * Longitude: -117.518500 * Date/Time: 1978-11-02T00:00:00 * Elevation: -3549.0 m * Penetration: 168 m * Recovery: 89.9 m * Location: North Pacific/ABYSSAL FLOOR * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 18 cores; 168 m cored; 0 m drilled; 53.5 % 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:

82 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
63-468B	63-468B-37-1,68-1	63-468B-37-1,68	406.68	In sediment	Mn micronodule	Several		Tuff	Lapilli tuff, light brownish black (5YR3/1)	7% Mn micronodules (Site 468B, Core 37, Cored interval: 406.0-415.5 m, page 153)
63-469	63-469-23-3,40-1	63-469-23-3,40	210.40	In sediment	Mn rich layer	1		Ooze	Interbedded light olive gray (5Y5/2) and light greenish gray (5GY8/1) nannofossil diatomaceous ooze (Middle Miocene)	Dark pyrite rich (manganese?) patch (Site 469, Core 23, Cored interval: 207.0-216.5 m, page 198)
63-469	63-469-24-5,60-120-1	63-469-24-5,60-120	222.60	In sediment	Mn rich layer	1		Chalk	Nannofossil and clayey diatomaceous chalk (Middle Miocene)	Thin grayish purple (5P4/2) to pale purple (5P4/2) pyrite/Mn? pseudolaminations (Site 469, Core 24, Cored interval: 216.5-226.0 m, page 198)
63-469	63-469-26-CC,0-1	63-469-26-CC,0	235.60	In sediment	Mn rich layer	1		Chalk	Greenish gray (5G6/1) siliceous chalk (Middle Miocene)	Thin grayish purple (5P4/2) pyrite/Mn? pseudolaminations (Site 469, Core 26, Cored interval: 235.5-245.0 m, page 199)
63-470	63-470-18-1,70-72-1	63-470-18-1,70-72	162.21	In sediment	Mn rich layer	1		Chalk	Greenish gray (5G6/1), slightly mottled chalk getting firmer near contact with basalt at 72 cm (Middle Miocene)	Scattered rhombic crystals associated with pyrite and manganese mineralization (Site 470, Core 18, Cored interval: 161.5-168.5 m, page 249)
63-470A	63-470A-7-1,44-1	63-470A-7-1,44	166.94	In sediment	Mn rich layer	1		Claystone	Pale olive dolomitic claystone (Middle Miocene)	Patches of pyrite? and Mn mineralization? just above contact with underlying basalt (Site 470A, Core 7, Cored interval: 166.5-171.0 m, page 253)
63-471	63-471-75-5,47B	63-471-75-5,47	709.47	Buried	P2O5-Mn coating	Several	Grain; quartz	Sandstone	Silty medium gray (N4) sandstone occurs as regular thin (about 1 cm thick) interbeds.	P2O5-MnO2 coated fine sand-size pelletal grains containing cores of angular quartz or feldspar. (Site 471, Core 75, Cored interval: 703.0-712.5 m, page 316)
63-472	63-472-11-1,20-1	63-472-11-1,20	91.20	Buried	Mn coating		Pebble; claystone	Ooze	Light greenish gray (5GY7/1) to light gray (N8) diatom nannofossil ooze (Middle Miocene)	A manganese-oxide-coated olive gray silty claystone pebble (1 cm long) (Site 472, Core 11, Cored interval: 91.0-100.5 m, page 367)
63-472	63-472-11-1,140-1	63-472-11-1,140	92.40	Buried	Mn coating		Pebble; claystone	Ooze	Light greenish gray (5GY7/1) to light gray (N8) diatom nannofossil ooze (Middle Miocene)	A manganese-oxide-coated olive gray silty claystone pebble (8 cm long) (Site 472, Core 11, Cored interval: 91.0-100.5 m, page 367)
63-472	63-472-13-CC,0-1	63-472-13-CC,0	110.00	Buried	Mn crust	1	Fragment; claystone	Clay	Breccia of olive gray (5Y5/2) to grayish orange (10YR7/4) clay	Claystone fragment in breccia has black Mn crust. (Site 472, Core 13, Cored interval: 110.0-112.0 m, page 368)