Citation:

dsdp.proc.41.1978

Name: tated record of the detailed examination of Mn deposits from DSDP Leg 41 (Holes 366, 366A, 367, 368, 369, 369A)
Published: 1978
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

he forty-first cruise of Glomar Challenger was devoted to the study of the evolution of the eastern basins of the North Atlantic, off the continental margin of West Africa. As the available data a the time was showing that most litho-stratigraphic units in the deep basins of the Atlantic had enough lateral extension, the drilling of a limited number of sites in key areas would allow for large-scale regional interpretation. One of the sites was loacted in the Cape Verde deep Basin (Site 367) while others were located in shallower waters such as, the Sierra Leone Rise (Site 366), the Cape Verde Rise (Site 368) or the Continental Slope off Spanish Sahara (Site 369).

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: 15.755833 * Median Longitude: -18.516833 * South-bound Latitude: 5.678000 * West-bound Longitude: -21.353800 * North-bound Latitude: 26.592500 * East-bound Longitude: -14.998700

Date/Time Start: 1975-02-22T00:00:00 * Date/Time End: 1975-03-23T00:00:00

Minimum DEPTH, sediment/rock: 0.80 m * Maximum DEPTH, sediment/rock: 912.40 m

Event(s):

41-366 * Latitude: 5.678000 * Longitude: -19.851300 * Date/Time: 1975-02-22T00:00:00 * Elevation: -2853.0 m * Penetration: 850.5 m * Recovery: 302.8 m * Location: North Atlantic/CONT RISE * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 53 cores; 499 m cored; 19 m drilled; 60.7 % recovery

41-366A * Latitude: 5.678000 * Longitude: -19.851300 * Date/Time: 1975-02-22T00:00:00 * Elevation: -2853.0 m * Penetration: 367 m * Recovery: 277.1 m * Location: North Atlantic/CONT RISE * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 38 cores; 357.5 m cored; 9.5 m drilled; 77.5 % recovery

41-367 * Latitude: 12.486800 * Longitude: -20.047200 * Date/Time: 1975-03-03T00:00:00 * Elevation: -4748.0 m * Penetration: 1153 m * Recovery: 173.6 m * Location: North Atlantic/BASIN * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 40 cores; 342 m cored; 0 m drilled; 50.8 % 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	Size	Size
9	Substrate type	Substrate
10	Sediment type	Sediment
11	Comment	Comment
12	Description	Description
13	File name	File name
14	Uniform resource locator/link to image	URL image

License:

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

Size:

526 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 Size	9 Substrate	10 Sediment	11 Comment	12 Description	13 File name	14 URL image
41-366	41-366-1-1,53-1	41-366-1-1,53	1.03	In sediment	Mn micronodule	Several			Ooze	Foram nanno ooze, mottled dark yellowish orange (10YR 6/6), dark yellowish brown (10YR 4/2), and dusky yellow brown (10YR 2/2) (Pleistocene)	6% Mn micronodules (Site 366, Core 1, Cored Interval: 0.0-5.0 m, page 52)
41-366	41-366-1-6,24-1	41-366-1-6,24	8.24	In sediment	Mn micronodule	Several			Ooze	Foram nanno ooze, mottled dark yellowish orange (10YR 6/6), dark yellowish brown (10YR 4/2), and dusky yellow brown (10YR 2/2) (Pleistocene)	6% Mn micronodules (Site 366, Core 1, Cored Interval: 0.0-5.0 m, page 52
41-366	41-366-1-CC,0-1	41-366-1-CC,0	9.60	In sediment	Mn micronodule	Several			Ooze	Foram nanno ooze, mottled dark yellowish orange (10YR 6/6), dark yellowish brown (10YR 4/2), and dusky yellow brown (10YR 2/2) (Pleistocene)	6% Mn micronodules (Site 366, Core 1, Cored Interval: 0.0-5.0 m, page 52)
41-366	41-366-2-CC,0-1	41-366-2-CC,0	14.60	In sediment	Mn micronodule	Several			Ooze	Foram nanno ooze, mottled dark yellowish orange (10YR 6/6), dark yellowish brown (10YR 4/2), and dusky yellow brown (10YR 2/2) (Pleistocene)	6% Mn micronodules (Site 366 Hole Core 2 Cored Interval: 5.0-14.5 m, page 52)
41-366	41-366-8-41,103-1	41-366-8-41,103	400.03	Buried	Mn nodule	Several			Chalk	Nanno chalk, light greenish gray (5G 8/1) with interbeds of green gray (5G 6/1) and olive gray (5Y 4/1) (Lower Oligocene)	Whole core is burrowed, Mn nodules with liesegang banding are scattered throughout and fine Mn banding is found commonly. (Site 366, Core 8, Cored Interval: 394.5-404.0.m, page 55)
41-366	41-366-9-4,65-1	41-366-9-4,65	409.15	Buried	Mn nodule	Several			Chalk	Nanno chalk, dark greenish gray (5GY 6/1) with mottles of (5G 8/1) and greenish gray (5GY 6/1) (Lower Oligocene)	Mn laminations and nodules, some showing liesegang banding. (Site 366 , Core 9, Cored Interval: 404.0-413.5 m, page 56)
41-366	41-366-10-3,65-1	41-366-10-3,65	417.15	Buried	Mn nodule	Several			Chalk	Nanno chalk, light greenish gray (5GY 8/1) (Lower Tertiary)	Some liesegang banding around Mn nodules. (Site 366, Core 10, Cored Interval: 413.5-423.0 m, page 56)
41-366	41-366-11-1,50-1	41-366-11-1,50	423.50	Buried	Mn nodule	Several			Chalk	Nanno chalk, light greenish gray (5GY 8/1) with mottles and interbeds of 5G 8/1 (Upper Eocene)	Sediment is burrowed throughout with Fe/Mn nodules, some with liesegang banding. (Site 366, Core 11, Cored Interval: 423.0-432.5 m, page 57)
41-366	41-366-12-4,60-1	41-366-12-4,60	437.60	Buried	Mn nodule	Several			Chalk	Nanno chalk, light greenish gray (5GY 8/1) with mottles of greenish gray (5GY 6/1) (Upper Eocene)	Sediment burrowed throughout and has common Fe/Mn bands and nodules, some showing liesegang banding. (Site 366, Core 12, Cored Interval: 432.5-442.0 m, page 56)
41-366	41-366-14-3,95-1	41-366-14-3,95	455.45	In sediment	Mn micronodule	Several			Chalk	Nanno chalk, light greenish gray (5GY 8/1), with small (5 cm) zones of grayish green (5G 6/1) (Upper Eocene)	Zoophycos apparent and Fe/Mn specks common. (Site 366, Core 14, Cored Interval: 451.5-461.0 m, page 58)
41-366	41-366-16-2,50-1	41-366-16-2,50	472.50	Buried	Mn nodule	Few			Chalk	Nanno chalk, light greenish gray (5GY 8/1), stiff, drilling disturbance slight to intense (Middle Eocene)	A few Fe/Mn nodules with liesegang banding. (Site 366, Core 16, Cored Interval: 470.5-480.0 m, page 58)
41-366	41-366-21-2,117-126-1	41-366-21-2,117-126	521.10	Buried	Mn nodule	1	4.0 cm		Chalk	Nanno chalk (Middle Eocene)	Section showing manganese (?) liesegang halo, Fig. 7, page 30 (Site 366, Core 21, Cored Interval : 518.0-527.5 m, page 59)	Fig7_DSDP41-366.jpg	Fig7_DSDP41-366.jpg
41-366	41-366-27-51,13-1	41-366-27-51,13	582.34	Buried	Mn nodule	Few			Limestone	Interbedded limestone, chalk and minor chert in cycles (about 20 cm). Chalk, light greenish gray (5GY 8/1) to greenish gray (5GY 6/1), well-indurated (Middle Eocene)	Fe/Mn specks, a few with liesegang banding, rare Fe/Mn nodules (Site 366, Core 27, Cored Interval: 575.0-584.5 m, page 61)
41-366	41-366-28-3,90-1	41-366-28-3,90	588.40	Buried	Mn nodule	Few			Limestone	Interbedded limestone, chalk and minor chert in cycles (about 20-25 cm) (Middle Eocene)	Fe/Mn specks, some with liesegang banding, rare Fe/Mn nodules (Site 366, Core 28, Cored Interval: 584.5-594.0 m, page 62)
41-366	41-366-29-2,63-1	41-366-29-2,63	596.13	In sediment	Mn micronodule	Few			Chalk	Nannofossil chalk grades into an argillaceous limestone-siliceous limestone (Eocene)	4% Mn micronodules, has abundant ferromanganese(?) flecks, streaks, and laminae (Site 366, Core 29, Cored Interval: 594.0-603.5 m, page 62)=
41-366	41-366-34-4,95-1	41-366-34-4,95	646.95	In sediment	Mn micronodule	Several			Limestone	Argillaceous limestone with thin siliceaous limestone interbeds in cycle (Lower Eocene)	6% Fe/Mn micronodules (Site 366, Core 34, Cored Interval: 641.5-651.0 m, page 64)
41-366	41-366-44-3,85-1	41-366-44-3,85	740.35	In sediment	Mn micronodule	Many			Claystone	Claystone (Upper Paleocene)	23% Mn micronodules (Site 366, Core 44, Cored Interval: 736.5-746.0 m, page 69)
41-366	41-366-53-CC,0-1	41-366-53-CC,0	822.10	In sediment	Mn micronodule	Few			Marlstone	Marlstone, light olive gray (5Y 6/1) (Lower Paleocene)	4% Fe/Mn micronodules (Site 366, Core 53, Cored Interval: 822.0-831.5 m, page 73)
41-366	41-366-55-CC,0-1	41-366-55-CC,0	841.10	In sediment	Mn micronodule	Several			Marlstone	Marlstone (Maestrichtian)	6% Mn micronodules (Site 366, Core 55, Cored Interval: 841.0-850.5 m, page 73)
41-366A	41-366A-1-4,60-1	41-366A-1-4,60	5.10	In sediment	Mn micronodule	Several			Marl	Foram bearing nanno marl, dark yellowish brown (10YR 4/2) to dusky yellow brown (10YR 2/2) (Pleistocene)	6% Mn micronodules. Black ferromanganese (?) flecks, and fish debris. (Site 366A, Core 1, Cored Interval: 0.0-6.0 m, page 74)
41-366A	41-366A-2-4,50-1	41-366A-2-4,50	11.50	In sediment	Mn micronodule	Few			Marl	Foram-bearing nanno marl, moderate yellowish brown (10YR 5/4) to pale yellowish brown (10YR 6/2) (Pleistocene)	4% Fe/Mn micronodules (Site 366A, Core 2, Cored Interval: 6.0-15.5 m, page 74)
41-366A	41-366A-4-CC,0-1	41-366A-4-CC,0	34.20	In sediment	Mn micronodule	Several			Marl	Nanno marl, white (5Y 8/1), soft (Pliocene)	6% Fe/Mn micronodules (Site 366A, Core 4, Cored Interval: 25.0-34.5 m, page 75)
41-366A	41-366A-10-CC,0-1	41-366A-10-CC,0	83.60	In sediment	Mn micronodule	Several			Ooze	Nanno ooze, white (N9) and light olive gray (5Y 6/1) mottled (Neogene)	6% Fe/Mn micronodules (Site 366A, Core 10, Cored Interval: 82.0-91.5 m, page 78)
41-366A	41-366A-15-2,80-1	41-366A-15-2,80	132.20	In sediment	Mn micronodule	Many			Ooze	Nanno ooze, moderate yellowish brown (1OYR 5/6) to grayish orange (1OYR 7/4) (Middle Miocene)	23% Fe/Mn micronodules (Site 366A, Core 15, Cored Interval: 129.5-139.0 m, page 81)
41-366A	41-366A-15-61,110-1	41-366A-15-61,110	138.50	In sediment	Mn micronodule	Many			Marl	Interbedded nanno marl, dark yellowish brown (1OYR 4/2) to brownish yellow (1OYR 6/6), stiff (Middle Miocene)	16% Fe/Mn micronodules (Site 366A, Core 15, Cored Interval: 129.5-139.0 m, page 81)
41-366A	41-366A-30-CC,0-1	41-366A-30-CC,0	281.30	In sediment	Mn micronodule	Few			Chalk	Interbedded clayey nanno chalk and pelagic clay. Clayey nanno chalk, light greenish gray (5GY 8/1), stiff (Oligocene)	4% Mn micronodules. Mn specks and liesegang bands common. Black specks occasional. (Site 366A, Core 30, Cored Interval: 272.0-281.5, page 87)
41-366A	41-366A-35-CC,0-1	41-366A-35-CC,0	328.60	In sediment	Mn micronodule	Several			Chalk	Interbedded clayey nanno chalk and pelagic clay. Clayey nanno chalk, light greenish gray (5GY 8/1), stiff (Oligocene)	6% Mn micronodules. Mn flecks and liesegang bands scattered throughout, (Site 366A Core 35 Cored Interval: 319.5-329.0 m, page 90)
41-366A	41-366A-37-CC,0-1	41-366A-37-CC,0	347.60	In sediment	Mn micronodule	Several			Chalk	Interbedded clayey nanno chalk and pelagic clay. Clayey nanno chalk, light greenish gray (5GY 8/1), stiff.	6% Mn micronodules. Abundant Mn flecks, bands, and halos. (Site 366A, 37 Cored Interval:338.5-348.0 m, page 91)
41-366A	41-366A-39-CC,0-1	41-366A-39-CC,0	363.60	In sediment	Mn micronodule	Several			Chalk	Interbedded clayey nanno chalk and pelagic clay. Clayey nanno chalk, light greenish gray (5GY 8/1), stiff.	6% Mn micronodules. Abundant Mn flecks, laminations, and liesengag halos. (Site 366A, Core 39, Cored Interval: 357.5-367.0 m, page 92)
41-367	41-367-4-1,62-1	41-367-4-1,62	64.12	In sediment	Mn micronodule	Several			Sand	Foram bearing nanno clayey sand (Pliocene)	Mn stains and flecks (Site 367, Core 4, Cored Interval : 63.5-73.0 m, page 197)
41-367	41-367-8-CC,0-1	41-367-8-CC,0	310.10	Buried	Mn coating	Several		Burrow	Clay	Diatom-bearing radiolarian clay, greenish gray (5GY 6/1), very stiff (Upper Eocene)	Borrows coated with Mn (Site 367, Core 8, Cored Interval : 302.5-312.0 m, page 198)
41-367	41-367-16-21,120-1	41-367-16-21,120	542.70	Buried	Mn coating	Several		Burrow	Clay	Clay, alternating interbeds of grayish blue green (5BG 5/2) and dark reddish brown (10R 3/4) (Upper Cretaceous)	Mn band at 102 cm and Mn-filled burrows (especially chondrites). (Site 367, Core 16, Cored Interval: 540.0-549.5 m, page 201)
41-367	41-367-19-4,53-1	41-367-19-4,53	649.53	In sediment	Mn micronodule	Many			Shale	Shale, black (N1), fissile and hard (Lower Turonian)	23% Mn micronodules (Site 367, Core 19, Cored Interval: 644.5-654.0 m, page 202)
41-367	41-367-22-2,37-1	41-367-22-2,37	722.37	In sediment	Mn micronodule	Several			Shale	Alternations of shale clay and silt turbidites (Cretaceous)	Common Fe-Mn micronodules (Site 367, Core 22, Cored Interval: 720.5-730.0 m, page 204)
41-367	41-367-26-2,40-1	41-367-26-2,40	912.40	Buried	Mn coating	Several		Burrow	Limestone	Alternations of light gray limestone and olive black marlstone. Nanno-bearing limestone, light gray (N7), burrowed (Barremian)	Mn streaks and burrow fillings. (Site 367, Core 26, Cored Interval : 910.5-920.0 m, page 205)
41-368	41-368-1-1,80-1	41-368-1-1,80	0.80	In sediment	Mn micronodule	Few			Marl	Foram bearing nanno marl, pale yellowish brown (10YR 6/2), mottled (Holocene)	3% Mn micronodules (Site 368, Core 1, Cored Interval : 0.0-9.0 m, page 261)
41-368	41-368-2-21,142-1	41-368-2-21,142	11.92	In sediment	Mn micronodule	Few			Marl	Foram bearing nanno marl, light olive gray (5Y 6/1) to dark greenish gray (5GY 5/1) (Pleistocene)	2% Mn micronodules (Site 368, Core 2, Cored Interval : 9.0-18.5 m, page 261)
41-368	41-368-3-41,120-1	41-368-3-41,120	53.20	In sediment	Mn micronodule	Few			Marl	Foram nanno marl, yellow gray (5Y 8/1), gray green (5GY 5/1), soft (Cenozoic)	3% Mn micronodules (Site 368, Core 3, Cored Interval : 47.0-56.5 m, page 262)
41-368	41-368-5-4,97-1	41-368-5-4,97	128.97	In sediment	Mn micronodule	Few			Ooze	Foram bearing nanno ooze, light gray (N8) grading to greenish gray (5GY 6/1) in cycles, soft (Lower Pliocene)	2% Mn micronodules (Site 368, Core 5, Cored Interval : 123.0-132.5 m, page 263)
41-368	41-368-6-4,10-1	41-368-6-4,10	165.60	In sediment	Mn micronodule	Several			Ooze	Nanno ooze, very light gray (N8) grading to greenish gray (5G 6/1) in cycles (Upper Miocene)	6% Mn micronodules (Site 368, Core 6, Cored Interval : 161.0-170.5 m, page 263)
41-368	41-368-7-1,50-1	41-368-7-1,50	171.40	In sediment	Mn micronodule	Few			Ooze	Interbedded nanno ooze and marl (Upper Miocene)	2% Mn micronodules (Site 368, Core 7, Cored Interval : 170.5-180.0 m, page 264)
41-368	41-368-22-1,17-1	41-368-22-1,17	323.17	In sediment	Mn micronodule	Few			Claystone	Claystone, medium bluish gray (5B 5/1) grading with depth to thinly interbedded green gray (5G 6/1 and 5GY 4/1) (Tertiary)	1% Mn micronodules. Liesegang bands of Mn(?) around burrows. (Site 368, Core 22, Cored Interval : 322.5-332.0 m, page 270)
41-368	41-368-51-3,60-1	41-368-51-3,60	715.60	In sediment	Mn micronodule	Several			Shale	Shale, interbedded dark reddish brown (10R 3/3) and grayish blue green (5BG 5/2)	6% Mn micronodules (Site 368, Core 51, Cored Interval : 712.0-721.5 m, page 280)
41-369	41-369-5-2,80-1	41-369-5-2,80	34.80	In sediment	Mn micronodule	Several			Marl	Clayey nanno marl, greenish gray (5GY 8/1), soft (Middle Miocene)	6% Fe-Mn micronodules (Site 369, Core 5, Cored Interval: 32.5-42.0 m, page 352)
41-369A	41-369A-2-3,80-1	41-369A-2-3,80	55.80	In sediment	Mn micronodule	Few			Marl	Clayey nanno marl, light greenish gray (5GY 8/1) and greenish gray (5GY 6/1) (Neogene)	4% Fe-Mn micronodules (Site 369A, Core 2, Cored Interval: 51.5-61.0 m, page 353)
41-369A	41-369A-3-4,76-1	41-369A-3-4,76	66.66	In sediment	Mn micronodule	Few			Marl	Nanno marl, greenish gray (5GY 6/1) with a few light olive gray (5Y 6/1) streaks (Middle Miocene)	4% Fe-Mn micronodules (Site 369A, Core 3 Cored Interval: 61.0-70.5 m, page 353)
41-369A	41-369A-4-3,36-1	41-369A-4-3,36	74.36	In sediment	Mn micronodule	Many			Ash	Volcanic ash (Middle Miocene)	31% Fe-Mn micronodules (Site 369A, Core 4, Cored Interval: 70.5-80.0 m, page 354)
41-369A	41-369A-4-4,86-1	41-369A-4-4,86	76.36	In sediment	Mn micronodule	Few			Ash	Volcanic ash (Middle Miocene)	3% Fe-Mn micronodules (Site 369A, Core 4, Cored Interval: 70.5-80.0 m, page 354)
41-369A	41-369A-4-51,112-1	41-369A-4-51,112	78.12	In sediment	Mn micronodule	Several			Ash	Volcanic ash (Middle Miocene)	6% Fe-Mn micronodules (Site 369A, Core 4, Cored Interval: 70.5-80.0 m, page 354)
41-369A	41-369A-5-21,120-1	41-369A-5-21,120	83.00	In sediment	Mn micronodule	Several			Ash	Volcanic ash (Middle Miocene)	6% Fe-Mn micronodules (Site 369A, Core 5, Cored Interval: 80.0-89.5 m, page 354)
41-369A	41-369A-5-3,85-1	41-369A-5-3,85	84.15	In sediment	Mn micronodule	Few			Marl	Nanno marl, light greenish gray (5GY 8/1) with greenish gray (5GY 6/1) inerbeds, very stiff (Middle Miocene)	3% Fe-Mn micronodules (Site 369A, Core 5, Cored Interval: 80.0-89.5 m, page 354)
41-369A	41-369A-6-5,81-1	41-369A-6-5,81	96.71	In sediment	Mn micronodule	Few			Marl	Nanno marl, light greenish gray (5GY 8/1) with greenish gray (5GY 6/1), very stiff (Middle Miocene)	3% Fe-Mn micronodules (Site 369A, Core 6, Cored Interval: 89.5-99.0 m, page 355)
41-369A	41-369A-7-3,19-1	41-369A-7-3,19	102.69	In sediment	Mn micronodule	Few			Marl	Nanno marl, light greenish gray (5GY 8/1) with greenish gray (5GY 6/1), very stiff (Middle Miocene)	4% Fe-Mn micronodules (Site 369A, Core 7, Cored Interval : 99.0-108.5 m, page 355)
41-369A	41-369A-8-4,39-1	41-369A-8-4,39	113.89	In sediment	Mn micronodule	Several			Marl	Nanno marl, light green gray (56 8/1) becoming greenish gray (56 6/1) with depth, very stiff (Lower Miocene)	6% Fe-Mn micronodules (Site 369A, Core 8, Cored Interval: 108.5-118.0 m, page 356)
41-369A	41-369A-9-2,70-1	41-369A-9-2,70	120.20	In sediment	Mn micronodule	Several			Marl	Silty nanno marl, light greenish gray (56 8/1 ) and greenish gray (56 6/1) with interbedded olive gray (5Y 4/1 ) (Lower Miocene)	6% Fe-Mn micronodules (Site 369A, Core 9, Cored Interval: 118.0-127.5, page 356)
41-369A	41-369A-10-2,50-1	41-369A-10-2,50	129.50	In sediment	Mn micronodule	Many			Marl	Radiolarian-bearing diatom nanno marl cycles, greenish gray (5G 6/1) and olive black (5Y 2/1), very stiff (Lower Miocene)	10% Fe-Mn micronodules (Site 369A, Core 10, Cored Interval: 127.5-137.0 m, page 357)
41-369A	41-369A-11-6,50-1	41-369A-11-6,50	145.20	In sediment	Mn micronodule	Few			Marl	Diatom nanno marl grading to nanno diatom marl, light olive (10Y 4/2) grading to olive gray (5Y 3/2), firm (Lower Miocene)	3% Fe-Mn micronodules (Site 369A, Core 11, Cored Interval: 137.0-146.5, page 357)
41-369A	41-369A-12-2,70-1	41-369A-12-2,70	149.10	In sediment	Mn micronodule	Few			Marl	Nanno diatom marl, olive gray (5Y 3/2), firm (Lower Miocene)	3% Fe-Mn micronodules (Site 369A, Core 12 Cored Interval: 146.5-156.0 m, page 358)
41-369A	41-369A-13-3,80-1	41-369A-13-3,80	160.20	In sediment	Mn micronodule	Few			Chalk	Radiolaria-bearing nanno diatom clay, olive gray (5Y 3/2) becoming grayish olive (10Y 4/2) (Lower Miocene)	3% Fe-Mn micronodules (Site 369A, Core 13, Cored Interval: 156.0-165.5 m, page 358)
41-369A	41-369A-14-3,50-1	41-369A-14-3,50	169.00	In sediment	Mn micronodule	Few			Marl	Nanno diatom marl, olive gray (5Y 3/2), very firm (Oligocene)	3% Fe-Mn micronodules (Site 369A, Core 14, Cored Interval: 165.5-175.0 m, page 359)
41-369A	41-369A-15-5,62-1	41-369A-15-5,62	182.12	In sediment	Mn micronodule	Few			Marl	Nanno marl, olive gray (5Y 3/2) (Oligocene)	6% Fe-Mn micronodules (Site 369A, Core 15, Cored Interval: 175.0-184.5 m, page 359)
41-369A	41-369A-33-21,100-1	41-369A-33-21,100	348.50	In sediment	Mn micronodule	Few			Marl	Nanno marl, olive gray (5Y 3/2), very firm (Upper Eocene)	Rare Fe-Mn micronodules (Site 369A, Core 33 Cored Interval: 346.0-355.5, page 368)
41-369A	41-369A-44-11,110-1	41-369A-44-11,110	451.60	In sediment	Mn micronodule	Many			Chalk	Silty nanno-bearing chalk, olive gray (5Y 4/1), firm (Lower Cretaceous)	13% Fe-Mn micronodules (Site 369A Core 44, Cored Interval: 450.5-460.0 m, page 374)
41-369A	41-369A-45-3,35-1	41-369A-45-3,35	463.35	In sediment	Mn micronodule	Many			Chalk	Nanno marl to nanno chalk, olive gray (5Y 4/1) with dark greenish gray (5G 4/1) interbeds, firm (Upper Aptian)	12% Fe-Mn micronodules (Site 369A, Core 45, Cored Interval: 460.0-469.5 m, page 374)
41-369A	41-369A-46-31,120-1	41-369A-46-31,120	473.70	In sediment	Mn micronodule	Many			Ooze	Silty nanno ooze, olive gray (5Y 4/1) to light olive gray (5Y 5/2) (Upper Aptian)	13% Fe-Mn micronodules (Site 369A, Core 46, Cored Interval: 469.5-479.0 m, page 375)