Citation:

PANGAEA.873608

Name: Annotated record of the detailed examination of Mn deposits from DSDP Leg 30 (Holes 286, 288A)
Published: 1975
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

The 286 site is located in the gap between the North and South New Hebrides trenches near the foot of the slope down from Malekula (100 km west of the island) and 370 km north of Mare in the Loyalty Island. The main objectives at the site were: 1) To determine when detritus was first shed into this basin from Malekula and thereby determine when the trench was destroyed and whether the island has moved into its present position in relatively recent time. 2) To determine the time of generation of the sea floor and compare it with that of the South Fiji Basin The Ontong-Java Plateau is underlain by a region of unusual oceanic crust that has an estimated maximum thickness of 40 km. Site 288 was located on the eastern flank of the plateau with the hope that the nature of the basement of the plateau could be determined.

Related to:

Andrews, James E; Packham, Gordon; Eade, J V; Holdsworth, B K; Jones, D L; Klein, J; Kroenke, Loren W; Saito, T; Shafik, S; Stoeser, Douglas B; van der Lingen, Gerrit J (1975): Initial Reports of the Deep Sea Drilling Project 30. U. S. Government Printing Office, XXX, 753 pp, https://doi.org/10.2973/dsdp.proc.30.1975

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: -16.441267 * Median Longitude: 167.999733 * South-bound Latitude: -26.819300 * West-bound Longitude: 161.825500 * North-bound Latitude: -5.972500 * East-bound Longitude: 175.804000

Date/Time Start: 1973-04-29T00:00:00 * Date/Time End: 1973-05-21T00:00:00

Minimum DEPTH, sediment/rock: 0.960 m * Maximum DEPTH, sediment/rock: 894.895 m

Event(s):

30-285 * Latitude: -26.819300 * Longitude: 175.804000 * Date/Time: 1973-04-29T00:00:00 * Elevation: -4658.0 m * Penetration: 83.5 m * Recovery: 41.7 m * Location: South Pacific/BASIN * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 5 cores; 45.5 m cored; 0 m drilled; 91.6 % recovery

30-286 * Latitude: -16.532000 * Longitude: 166.369700 * Date/Time: 1973-05-07T00:00:00 * Elevation: -4465.0 m * Penetration: 706 m * Recovery: 169.5 m * Location: South Pacific * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 41 cores; 383 m cored; 0 m drilled; 44.3 % recovery

30-288A * Latitude: -5.972500 * Longitude: 161.825500 * Date/Time: 1973-05-21T00:00:00 * Elevation: -3000.0 m * Penetration: 988.5 m * Recovery: 60.9 m * Location: South Pacific * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 29 cores; 275 m cored; 9.5 m drilled; 22.1 % 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	Sample code/label	Sample label
3	Identification	ID
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	Comment	Comment
10	Description	Description

License:

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

Size:

216 data points

Data

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

1 Event	2 Sample label	3 ID	4 Depth sed [m]	5 Position	6 Deposit type	7 Quantity	8 Substrate	9 Comment	10 Description
30-285	30-285-1-2,50	30-285-1-2,50	2.000	In sediment	Mn micronodule	Many	Clay	Dusky red, soft, ""red clay"" rich in zeolites with large quantity of Mn micronodules (Micronodulite)	40% Mn micronodules ( Site 285, Core 1, Cored Interval: 0.0-7.5m, page 50)
30-285	30-285-1-31,102	30-285-1-31,102	4.020	In sediment	Mn micronodule	Many	Clay	Dusky red with irregular patches of dark yellowish orange zeolitic ""red clay""	20% Mn micronodules ( Site 285, Core 1, Cored Interval: 0.0-7.5m, page 50)
30-285	30-285-1-61,140	30-285-1-61,140	8.900	In sediment	Mn micronodule	Many	Clay	Dusky red, soft to soupy ""red clay"" rich in zeolites with large quantity of Mn micronodules (Micronodulite)	45% Mn micronodules ( Site 285, Core 1, Cored Interval: 0.0-7.5m, page 50)
30-285	30-285-1-CC,0	30-285-1-CC,0	9.100	In sediment	Mn micronodule	Many	Clay	Glass shard bearing dusky red ""red clay"", rich in zeolites	40% Mn micronodules ( Site 285, Core 1, Cored Interval: 0.0-7.5m, page 50)
30-285	30-285-2-1,75	30-285-2-1,75	17.750	In sediment	Mn micronodule	Many	Clay	Dusky red and soft zoelite rich ""red clay""	30% Mn micronodules ( Site 285, Core 2, Cored Interval: 17.0-26.5m, page 50)
30-285	30-285-2-11,144	30-285-2-11,144	18.440	In sediment	Mn micronodule	Many	Ooze	Moderate yellow brown, icronodule rich nanno ooze	20% Mn micronodules ( Site 285, Core 2, Cored Interval: 17.0-26.5m, page 50)
30-285	30-285-2-4,95	30-285-2-4,95	22.450	In sediment	Mn micronodule	Many	Ash	Very dark gray, quartz and foram bearing ash rich in glass shards	30% Mn micronodules ( Site 285, Core 2, Cored Interval: 17.0-26.5m, page 50)
30-285	30-285-2-5,30	30-285-2-5,30	23.300	In sediment	Mn micronodule	Many	Clay	Dusky red feldspar and glass shard bearing nanno rich ""red clay""	20% Mn micronodules ( Site 285, Core 2, Cored Interval: 17.0-26.5m, page 50)
30-285	30-285-3-1,71	30-285-3-1,71	37.010	In sediment	Mn micronodule	Many	Ash	Foram bearing nanno glass shard ash	20% Mn micronodules ( Site 285, Core 3, Cored Interval: 35.5-45.5m, page 51)
30-285	30-285-3-2,60	30-285-3-2,60	38.400	In sediment	Mn micronodule	Many	Ooze	Light brownish gray or gray glass shard rich nanno ooze	20% Mn micronodules ( Site 285, Core 3, Cored Interval: 35.5-45.5m, page 51)
30-285	30-285-4-CC,0	30-285-4-CC,0	64.100	In sediment	Mn micronodule	Many	Ooze	Dark greenish gray nanno radiolarian ooze	10% Mn micronodules with glass shards, diatoms and sponge spicules. ( Site 285, Core 4, Cored Interval: 55.0-54.5m, page 51)
30-286	30-286-1-1,96	30-286-1-1,96-1	0.960	In sediment	Mn micronodule	Many	Ooze	Micarb, diatom and nanno-bearing micronodule and glass shard ash-rich radiolaria ooze, dark brown, mottled with very dark gray, soupy to soft (Pleistocene)	20% Mn micronodules (Site 286, Core 1, Cored Interval: 0.0-7.0 m, page 94 )
30-286	30-286-1-21,100	30-286-1-21,100-1	2.500	In sediment	Mn micronodule	Several	Ash	Micarb nanno bearing glass shard ash with diatom, sponge spicules, radiolarai and miconodules. Brown; soupy to soft, slightly mottled (Pleistocene)	10% Mn micronodules (Site 286, Core 1, Cored Interval: 0.0-7.0 m, page 94 )
30-286	30-286-1-CC,0	30-286-1-CC,0-1	7.600	In sediment	Mn micronodule	Several	Ash	Radiolarian glass shard ash, micarb nanno bearing and micronodules (Pleistocene)	10% Mn micronodules (Site 286, Core 1, Cored Interval: 0.0-7.0 m, page 94 )
30-286	30-286-2-51,110	30-286-2-51,110-1	23.600	In sediment	Mn micronodule	Many	Ash	Clay rich glass shard ash with heavy minerals, quartz and micronodules. Brown, mottled, soft, with scattered pumice fragments up to 1/4"" diameter (Pleistocene)	25% Mn micronodules (Site 286, Core 2, Cored Interval : 16.5-26.0 m, page 94 )
30-286	30-286-2-CC,0	30-286-2-CC,0-1	25.600	In sediment	Mn micronodule	Several	Clay	Nanno and zeolite rich clay with glass shards and micronodules (Pleistocene)	15% Mn micronodules (Site 286, Core 2, Cored Interval : 16.5-26.0 m, page 94 )
30-286	30-286-3-11,145	30-286-3-11,145-1	36.950	In sediment	Mn micronodule	Several	Ash	Micarb nanno bearing glass shard ash with zeolites and micronodules. Dark yellowish brown, unbedded, soft (Upper Pliocene)	15% Mn micronodules (Site 286, Core 3, Cored Interval : 35.5-45.0 m, page 95 )
30-286	30-286-3-CC,0	30-286-3-CC,0-1	43.100	In sediment	Mn micronodule	Several	Silt	Glass shard rich clayey silt with plant debris, nanno, quartz and micronidules. Brown, soft (Upper Pliocene)	10% Mn micronodules (Site 286, Core 3, Cored Interval : 35.5-45.0 m, page 95 )
30-286	30-286-4-1,90	30-286-4-1,90-1	55.400	In sediment	Mn micronodule	Several	Ash	Glass shard ash with mica and micronodules. Dark brown, mottled and streaked with yellow brown (Lower Pliocene)	10% Mn micronodules (Site 286, Core 4, Cored Interval : 54.5-64.0 m, page 95 )
30-286	30-286-5-21,149	30-286-5-21,149-1	76.490	In sediment	Mn micronodule	Several	Ash	Micronodule rich glass shard ash. Brown, soft to stiff (Tertiary)	15% Mn micronodules (Site 286, Core 5, Cored Interval : 73.5-83.0 m, page 96 )
30-286	30-286-5-41,140	30-286-5-41,140-1	79.400	In sediment	Mn micronodule	Many	Clay	Micronodule bearing zeolitic clay with volcanic glass and plant debris. Dark brown, stiff, slightly mottled (Tertiary)	30% Mn micronodules (Site 286, Core 5, Cored Interval : 73.5-83.0 m, page 96 )
30-286	30-286-6-41,140	30-286-6-41,140-1	98.400	In sediment	Mn micronodule	Many	Ooze	Micronodule rich nanno ooze with glass shards and spicules. Mottled brown and grayish brown, stiff (Upper oligocene)	20% Mn micronodules (Site 286, Core 6, Cored Interval : 92.5-102.0 m, page 96 )
30-286	30-286-6-5,80	30-286-6-5,80-1	99.300	In sediment	Mn micronodule	Several	Ooze	Micronodule and ash bearing nanno ooze. Dark, yellowish brown (Upper oligocene)	10% Mn micronodules (Site 286, Core 6, Cored Interval : 92.5-102.0 m, page 96 )
30-286	30-286-7-41,140	30-286-7-41,140-1	117.870	In sediment	Mn micronodule	Several	Ooze	Nanno ooze rich in sponge spicules and micronodules. Yellowish brown, stiff (Middle oligocene)	15% Mn micronodules (Site 286, Core 7, Cored Interval : 111.5-121.0 m, page 97 )
30-286	30-286-35-11,110	30-286-35-11,110-1	644.600	In sediment	Mn micronodule	Several	Siltstone	Altered glass shard siltstone (Middle Eocene)	11% Mn micronodules (Site 286, Core 35, Cored Interval : 624.5-634.0 m, page 106 )
30-286	30-286-35-CC,0	30-286-35-CC,0-1	645.100	In sediment	Mn micronodule	Many	Silstone	Nanno bearing, micarb rich vitric silstone. Dark greenish grey, lithified (Middle Eocene)	40% Mn micronodules (Site 286, Core 35, Cored Interval : 624.5-634.0 m, page 106 )
30-288A	30-288A-25-1,82-95	30-288A-25-1,82-95-1	894.895	Buried	Mn coating	Several	Rock; limetone	Pinkish-gray to light reddishbrown limestones (Cenomanian)	Manganese dendrites occur commonly in calcite veins containing black opaque mineral (Site 288A, Core 25, Cored Interval: 894.0-903.5, page 213 )