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Shipboard Scientific Party (1959): Annotated record of the detailed examination of Mn deposits from VEMA 15 Expedition stations [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.857784, Supplement to: Lamont-Doherty Earth Observatory (1959): Expedition VEMA 15. Lamont Geological Observatory, Columbia University, New York, unpublished, 26 pp, https://www.ngdc.noaa.gov/mgg/curator/data/vema/vm15/vm15_summary.pdf

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Abstract:
The cores and dredges described in this report were taken during the VEMA 15 Expedition from October 1958 until July 1959 by the Lamont Geological Observatory, Columbia University from the R/V Vema. A total of 410 cores and dredges were recovered and are available at Lamont-Doherty Earth Observatory for sampling and study.
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:
Lamont-Doherty Earth Observatory (1959): Core descriptions of Mn deposits of Vema cruise VM15. Lamont Geological Observatory, Columbia University, New York, unpublished, 60 pp, hdl:10013/epic.46752.d002
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
Coverage:
Median Latitude: -23.784037 * Median Longitude: -67.801074 * South-bound Latitude: -58.480000 * West-bound Longitude: -87.367000 * North-bound Latitude: 27.900000 * East-bound Longitude: -31.808300
Date/Time Start: 1958-11-09T00:00:00 * Date/Time End: 1959-07-06T00:00:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 9.88 m
Event(s):
V15-003PD  * Latitude: -54.183300 * Longitude: -62.600000 * Date/Time: 1959-03-07T00:00:00 * Elevation: -402.0 m * Location: Pacific Ocean * Campaign: V15 * Basis: Vema * Method/Device: Dredge (DRG)
V15-8  * Latitude: 10.183000 * Longitude: -78.500000 * Date/Time: 1958-11-09T00:00:00 * Elevation: -1798.0 m * Recovery: 5.51 m * Campaign: V15 * Basis: Vema * Method/Device: Piston corer (PC)
V15-30  * Latitude: 4.250000 * Longitude: -85.100000 * Date/Time: 1958-12-01T00:00:00 * Elevation: -3266.0 m * Recovery: 9.59 m * Campaign: V15 * Basis: Vema * Method/Device: Piston corer (PC)
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):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEventLamont-Doherty Earth Observatory
Date/Time of eventDate/TimeLamont-Doherty Earth Observatory
Latitude of eventLatitudeLamont-Doherty Earth Observatory
Longitude of eventLongitudeLamont-Doherty Earth Observatory
Elevation of eventElevationmLamont-Doherty Earth Observatory
Method/Device of eventMethod/DeviceLamont-Doherty Earth Observatory
Sample IDSample IDLamont-Doherty Earth Observatory
DEPTH, sediment/rockDepth sedmLamont-Doherty Earth ObservatoryGeocode
Depth, top/minDepth topmLamont-Doherty Earth Observatory
10 Depth, bottom/maxDepth botmLamont-Doherty Earth Observatory
11 PositionPositionLamont-Doherty Earth Observatory
12 Deposit typeDeposit typeLamont-Doherty Earth Observatory
13 Quantity of depositQuantityLamont-Doherty Earth Observatory
14 SizeSizeLamont-Doherty Earth Observatory
15 Substrate typeSubstrateLamont-Doherty Earth Observatory
16 Sediment typeSedimentLamont-Doherty Earth Observatory
17 CommentCommentLamont-Doherty Earth Observatory
18 DescriptionDescriptionLamont-Doherty Earth Observatory
Size:
698 data points

Data

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


Event

Date/Time

Latitude

Longitude

Elevation [m]

Method/Device

Sample ID

Depth sed [m]

Depth top [m]
10 
Depth bot [m]
11 
Position
12 
Deposit type
13 
Quantity
14 
Size
15 
Substrate
16 
Sediment
17 
Comment
18 
Description
V15-95SBT 1959-02-20-50.7666-67.4666-91Trawl netV15-95SBT-10.000.000.00SurfaceMn noduleSeveralCoarseCalcareous encrusted pebblesManganese nodular type concretions
V15-8 1958-11-0910.1830-78.5000-1798Piston corerV15-8-10.140.140.14BuriedMn nodule10.1 cmSilty clayBrown silty calcareous clay containing about 10% forams, becoming generally lighter with depth. Top 10 cm a disturbed gray and light brown mixture. Manganese appears to constitute an important part of the silt fraction.A 1mm manganese nodule appearing at 14 cm.
V15-30 1958-12-014.2500-85.1000-3266Piston corerV15-30-18.398.388.39BuriedMn nodule2ClayClay, dark grayish-green with purple tint. Color is mottled. Contains foraminifera.Two possible incipient manganese nodules occur at 838 and 839 cm.
V15-40 1958-12-11-11.0800-82.5200-4468Piston corerV15-40-12.342.342.34BuriedMn nodule2SmallClayGrey-brown clay. Color is graded and changed by iron oxide stains from the core pipe. Section reworked by large burrowers.Five 'proto-manganese nodules about pea size occur in a chain at 234 cm.
V15-401958-12-11-11.0800-82.5200-4468Piston corerV15-40-26.076.026.12BuriedMn nodule1FragmentClayGreyish-buff clay. Inconspicuous burrow mottling.A shattered and semi-consolidated manganese nodule
V15-401958-12-11-11.0800-82.5200-4468Piston corerV15-40-36.076.026.12In sedimentMn grainSeveralClayGreyish-buff clay. Inconspicuous burrow mottling.Mn grains + clay occur between 602 and 612 cm.
V15-401958-12-11-11.0800-82.5200-4468Piston corerV15-40-48.808.808.80BuriedMn nodule1FragmentClayIncludes several clay zones differentiated by color varying from light buff to medium grey-buff. All burrowed.There is a piece of manganese nodule alongside at 880 cm, probably in situ.
V15-44A 1958-12-22-9.5170-87.3670-4276Piston corerV15-44A-10.030.000.06BuriedMn noduleSeveralUp to 2.0 cmClayDark yellowish brown lutite (10 YR 4/2) with minute disseminations of manganese.There are some manganese nodules (largest about 2 cm. in diameter) within the bottom 6 cms.
V15-44A1958-12-22-9.5170-87.3670-4276Piston corerV15-44A-21.101.061.14In sedimentMn micronoduleManyClayClay marked by several layers showing color change. Burrowing is very evident throughout.There are numerous micronodules and minute disseminations of manganese.
V15-44A1958-12-22-9.5170-87.3670-4276Piston corerV15-44A-31.601.481.72In sedimentMn micronoduleFewClayModerate yellowish brown (10 YR 5/4) clay burrowed with a very pale orange (10 YR 8/2) clay in the upper 5 cm.Very minor disseminations of manganese micronodules throughout.
V15-44A1958-12-22-9.5170-87.3670-4276Piston corerV15-44A-42.091.722.45In sedimentMn micronoduleSeveralClayDusky yellowish brown (10 YR 2/2) clay mottled with moderate yellowish brown (10 YR 5/4) clay. The dark color (manganese rich) increases toward the bottom.Manganese micronodules are disseminated throughout, but increase markedly toward the bottom.
V15-44A1958-12-22-9.5170-87.3670-4276Piston corerV15-44A-52.472.452.48In sedimentMn micronoduleSeveralClayDark yellowish orange (10 YR 6/6 ) to moderate yellowish brown (10 YR 4/2 ) lutiteModerately dense nodules and micronodules of manganese.
V15-44A1958-12-22-9.5170-87.3670-4276Piston corerV15-44A-63.423.373.47BuriedMn stainingSeveralClayPale yellowish brown (10 YR 6/2) to grayish orange (10 YR 7/k) to yellowish gray (5 I 7/2) clay.Manganese filled burrows are present in the upper 10 cm.
V15-44A1958-12-22-9.5170-87.3670-4276Piston corerV15-44A-74.303.545.05BuriedMn noduleSeveralClayPale yellowish brown (10 YR 6/2) to grayish orange (10 YR 7/k) to yellowish gray (5 I 7/2) clay.Nodules of manganese are present at 354 cm., 362 cm., 384 cm., 386 cm., 388 cm., 393 cm. and 505 cm.
V15-45 1958-12-23-11.2000-84.8000-4459Piston corerV15-45-17.327.307.35In sedimentMn micronoduleSeveralClayGrayish black (N2) manganiferous clay, with light yellowish orange and dark yellowish brown (10 YR 6/2).Manganese occurs as micronodules surrounding clays of the two colors mentioned above.
V15-451958-12-23-11.2000-84.8000-4459Piston corerV15-45-27.407.357.45In sedimentMn micronoduleFewClayModerate reddish brown (10 R U/6 ) clay becoming darker towards the bottomMicronodules of manganese scattered
V15-451958-12-23-11.2000-84.8000-4459Piston corerV15-45-38.548.508.58In sedimentMn micronoduleManyClayA dark reddish brown (10 R 3/4) clay breccia with mottlings of moderate reddish brown (10 R 4/6 ) clay.Abundant disseminated manganese specks
V15-451958-12-23-11.2000-84.8000-4459Piston corerV15-45-49.028.979.07BuriedMn noduleSeveralUp to 1.0 cmClayA dark reddish brown (10 R 3/4) clay breccia with mottlings of moderate reddish brown (10 R 4/6 ) clay.The final 10 cm. grade into a grayish brown (5 YR 3/2) clay with darker manganiferous nodules having a diameter of less than 1 cm.
V15-47 1958-12-26-17.3000-80.5300-4643Piston corerV15-47-13.531.755.30In sedimentMn micronoduleSeveralClayPredominantly dark yellowish brown (10 YR 4/2) clay with varying amounts of silt and with minor disseminations of manganese and local pockets of manganese enrichment.In places there appears to be some displacement of manganese micronodules that may be caused by burrowing.
V15-471958-12-26-17.3000-80.5300-4643Piston corerV15-47-29.889.809.96In sedimentMn micronoduleSeveralClayPale yellowish brown clayManganese micronodules disseminated throughout as is white ash.
V15-48 1958-12-28-23.0700-75.1500-4395Piston corerV15-48-10.150.150.15BuriedMn nodule13.0x4.0 cmClayClay, dark brownish-tan, soft, siliceous, with less than 3% carbonate. No foraminifera, but some diatom frustules occur.One large nodule of manganese (3-4 cm. in diameter) present at 15 cm
V15-481958-12-28-23.0700-75.1500-4395Piston corerV15-48-20.250.250.25BuriedMn nodule13.0x4.0 cmClayClay, dark brownish-tan, soft, siliceous, with less than 3% carbonate. No foraminifera, but some diatom frustules occur.One large nodule of manganese (3-4 cm. in diameter) present at 25 cm
V15-481958-12-28-23.0700-75.1500-4395Piston corerV15-48-30.260.000.51In sedimentMn micronoduleSeveralClayClay, dark brownish-tan, soft, siliceous, with less than 3% carbonate. No foraminifera, but some diatom frustules occur.Ashy materials composed of micaceous flakes and manganese micronodules occur throughout. Concentration of manganese due to burrowing action occurs at the top.
V15-77SBT 1958-12-21-8.6167-84.6833-4358Trawl netV15-77SBT-10.000.000.00SurfaceMn noduleSeveralMn nodules, rocks and organic material
V15-79SBT 1958-12-23-11.2000-85.8000-4460DredgeV15-79SBT-10.000.000.00SurfaceMn noduleSeveralMn nodules
V15-80SBT 1958-12-24-12.8500-84.4666-4640Trawl netV15-80SBT-10.000.000.00SurfaceMn noduleSeveralManganese nodules
V15-81SBT 1958-12-26-17.2917-80.5333-4627Trawl netV15-81SBT-10.000.000.00SurfaceMn noduleSeveralManganese nodules
V15-82SBT 1958-12-28-23.0666-75.1500-4406Trawl netV15-82SBT-10.000.000.00SurfaceMn nodule33 manganese nodules
V15-66 1959-01-21-41.5300-72.9000-318Piston corerV15-66-13.153.153.15BuriedMn noduleSeveral0.1-0.5 cmClayOlive green clay with fine shadings of browns and greys. Burrow mottling is common though not always easily visible.Several little manganese nodules ( 1 - 5 mm) occur at two different levels, 315 cm and 330 cm.
V15-661959-01-21-41.5300-72.9000-318Piston corerV15-66-23.303.303.30BuriedMn noduleSeveral0.1-0.5 cmClayOlive green clay with fine shadings of browns and greys. Burrow mottling is common though not always easily visible.Several little manganese nodules ( 1 - 5 mm) occur at two different levels, 315 cm and 330 cm.
V15-003PD 1959-03-07-54.1833-62.6000-402DredgeV15-003PD-10.000.000.00SurfaceMn nodule1Core; mudstoneIgneous rocks include a hornblende granite, some basalts, a very weathered granite, and some quartz pebbles. Sedimentary rocks include cryptocrystalline limestones, sandstones with calcareous cement, a siltstone and a white mudstone, oxidized mn nodule.
V15-101 1959-03-02-56.2200-63.8800-4153Piston corerV15-101-10.000.000.00SurfaceMn noduleMany3.0 cmSandLight greenish-brown silty fine sand containing numerous flecks of glassy substance(volcanic ash?) scattered throughoutAlmost entirely Mn nodules up to 3cm in diameter
V15-1011959-03-02-56.2200-63.8800-4153Piston corerV15-101-20.300.090.50BuriedMn nodule3Up to 5.0 cmSandLight greenish-brown silty fine sand containing numerous flecks of glassy substance(volcanic ash?) scattered throughoutThree Mn nodules embedded in silty fine sand (same as layer above) largest nodule 5cm. in diameter
V15-1011959-03-02-56.2200-63.8800-4153Piston corerV15-101-31.311.311.31BuriedMn nodule12.0 cmSiltLight brown clayey silt. Top of section distinct layer MnO2, 1-2cm. thick.Mn nodule 2cm. maximum diameter at 131cm.
V15-1011959-03-02-56.2200-63.8800-4153Piston corerV15-101-42.061.842.28BuriedMn noduleMany2.0 cmSiltLight brown siltContaining numerous Mn nodules. Nodules up to 2cm. in diameter.
V15-1011959-03-02-56.2200-63.8800-4153Piston corerV15-101-53.273.203.34BuriedMn noduleSeveral1.0-5.0 cmSiltLight brown siltA large Mn nodule about 5cm. in diameter. Other Mn nodules less than 1cm. in diameter.
V15-119SBT 1959-03-17-57.0666-61.4166-3957Trawl netV15-119SBT-10.000.000.00SurfaceMn crustSeveral1.0 cm thickPebble; basat, granite, rhyoliteMn pebbles, gravel and coarse sand. Dredge basalt, granite, trachyte, and clay pebbles and cobbles, some of which were Mn-coated. The Mn crust was approximately 1 mm thick on the side sampled and only a thin polish on the opposite side, in Moore, 1973
V15-120SBT 1959-03-20-57.5383-55.1433-4067Trawl netV15-120SBT-10.000.000.00SurfaceMn crustSeveralPebble; felsicRocks (volcanic) and manganese felsite pebbles
V15-122SBT 1959-03-24-52.1800-49.0733-2523Trawl netV15-122SBT-10.000.000.00SurfaceFe-Mn coatingSeveralGravelSandCoarse sandHematite coated gravel
V15-125SBT 1959-03-27-49.3533-47.7433-5040Trawl netV15-125SBT-10.000.000.00SurfaceMn noduleSeveralManganes nodules. Nodule, Willis 1962
V15-129 1959-03-17-57.0700-61.4200-3950Piston corerV15-129-10.050.000.10BuriedMn noduleSeveral0.4-2.5 cmCore; basaly, rhyoliteSiltGreenish-tan foraminiferal, fine sandy, gritty siltA concentration of fairly well-rounded pebbles (4 to 25 mm) within the top 10 cm of the material (~2 dozen). Pebbles consist of several lithologies, among these a probable rhyolite porphyry others basaltic. Interpreted as nodule in core, Cronan 1975.
V15-130 1959-03-18-57.8500-60.1500-3477Piston corerV15-130-10.450.450.45BuriedMn noduleSeveral1.5 cm up to largeCore; volcanic glassSiltTannish beige, very fine sandy silt, slightly tanner than overlying layer.Larger Mn encrusted pebbles appear at 45 cm . These are generally crystalline, possibly trachyte or rhyolite glass. Several sub-angular manganese nodules, approximately 15 mm in diameter, are also present at this level.
V15-1301959-03-18-57.8500-60.1500-3477Piston corerV15-130-20.840.451.23BuriedMn crustSeveralFragmentSiltTannish beige, very fine sandy silt, slightly tanner than overlying layer.Occasional pebbles and chip fragments of Mn are mixed through the silty material; average size about 2 to 8 mm.
V15-131 1959-03-19-58.4800-59.1300-3823Piston corerV15-131-14.200.008.40BuriedMn micronoduleSeveralClayUniform ten, smooth clay except near the top where Burrow mottling evident throughout much of the core.Mn nodules less than 5 mm. in size are scattered-throughout the core.
V15-1311959-03-19-58.4800-59.1300-3823Piston corerV15-131-20.920.920.92BuriedMn coating14.5 cmPebbleClayUniform ten, smooth clay except near the top where Burrow mottling evident throughout much of the core.An ice rafted pebble pebble 4.5cm. in diameter occurs at 92cm. This pebble has thin coating of Mn and several other Mn nodules adhere to the pebble. These are less than 5mm in diameter.
V15-1311959-03-19-58.4800-59.1300-3823Piston corerV15-131-32.252.252.25BuriedMn coating1SmallPebbleClayUniform ten, smooth clay except near the top where Burrow mottling evident throughout much of the core.Small dark colored angular pebble occurs at 225cm.
V15-1311959-03-19-58.4800-59.1300-3823Piston corerV15-131-47.787.787.78BuriedMn coating1SmallPebbleClayUniform ten, smooth clay except near the top where Burrow mottling evident throughout much of the core.Small dark colored angular pebble occurs at 778cm.
V15-135 1959-03-22-54.7700-52.0300-3952Piston corerV15-135-11.201.171.23BuriedMn nodule13.0 cmCore; pebbleClayTan soft foraminiferal clay. No obvious burrowingSingle larg. Mn nodule with a pebble 2-3cm. in diameter comprising its nucleus. Coating of manganese is 2.5cm. thick at its maximum.
V15-1351959-03-22-54.7700-52.0300-3952Piston corerV15-135-21.441.431.46BuriedMn nodule1FragmentCoreClayTan soft foraminiferal clay. No obvious burrowingHalf of a Mn nodule that completely fills the core pipe. Thickness of Mn coating atleast 2cm. Nucleus of nodule not contained in the core.
V15-136 1959-03-24-52.1800-49.0800-2514Piston corerV15-136-11.501.501.50BuriedMn noduleSeveral3.5 cmSiltLight greyish-tan silt, quite homogeneousConcentration of nodules these appear at 150 cm., one 3.5 cm.
V15-1361959-03-24-52.1800-49.0800-2514Piston corerV15-136-22.852.832.87In sedimentMn rich layerSiltLight greyish-tan silt, quite homogeneousBrown manganese staining from 283 to 287 cm.
V15-1361959-03-24-52.1800-49.0800-2514Piston corerV15-136-33.853.753.95BuriedMn nodule27.0 cmSiltLight greyish-tan silt, quite homogeneousLarge 7.0 cm. manganese nodules (2)
V15-1361959-03-24-52.1800-49.0800-2514Piston corerV15-136-47.176.997.35BuriedMn noduleSeveralSiltLight greyish-tan silt, quite homogeneousManganese nodules concentrated between 699 and 710 cm and at 720 cm
V15-138 1959-03-26-49.5800-48.0800-2725Piston corerV15-138-10.000.000.00SurfaceMn nodule18.0 cmCore; gray-wackeSiltBrownish-tan, poorly sorted, silty quartzose sand with intermixed foraminifera testsLarge brown manganese nodule > 8.0 cm. in diameter . Nucleus of this nodule is a 25 mm, subangular arenaceous (arkosic gray-wacke) pebble.
V15-1381959-03-26-49.5800-48.0800-2725Piston corerV15-138-20.280.220.35BuriedMn crustSeveralFragmentSiltBrownish-tan, poorly sorted, silty quartzose sand with intermixed foraminifera testsDark brown manganese chunks
V15-1381959-03-26-49.5800-48.0800-2725Piston corerV15-138-20.280.220.35BuriedMn coatingSeveralPebble; basaltSiltBrownish-tan, poorly sorted, silty quartzose sand with intermixed foraminifera testsManganese coated pebbles (basaltic, fine grained and glassy), manganese cemented silty sediment,and nodules. Relative shortness of core assumed due to manganese coated pebbels which may have resisted core pipe penetration
V15-144 1959-04-02-41.6200-54.4000-4797Piston corerV15-144-11.650.003.30In sedimentMn grainManyClayDull mustard brown clay trending to darker blue greenish going downward.Manganese specks are common throughout.
V15-135SBT 1959-04-29-20.9833-31.8083-4301Trawl netV15-135SBT-10.000.000.00SurfaceMn noduleManyCore; igneous, metamorphicBrown manganese coated. Well developed nodules about 20% with rock centers. Remainder are thinly coated with manganese and have no, or few, nobby incrustations. 70% igneous, 10% metamorphic, 15% sedimentary.
V15-160 1959-04-27-26.3500-34.6000-4468Piston corerV15-160-11.631.631.63BuriedMn noduleSeveral0.8 cmClayBrownish silty clay, burrowed abundantly, salted with manganese grains in varying amounts, mottled by patches of oxidized material, apparently no forams.Contains a few manganese nodules (several about 8 mm in size at 163 cm)
V15-1601959-04-27-26.3500-34.6000-4468Piston corerV15-160-23.133.113.15BuriedMn nodule32.0 cmClayBrownish silty clay, burrowed abundantly, salted with manganese grains in varying amounts, mottled by patches of oxidized material, apparently no forams.Two or three manganese nodules about 2 cm in size at 311-315 cm, ( removed by Professor Keith from Penn State)
V15-1601959-04-27-26.3500-34.6000-4468Piston corerV15-160-33.883.873.89BuriedMn nodule1ClayBrownish silty clay, burrowed abundantly, salted with manganese grains in varying amounts, mottled by patches of oxidized material, apparently no forams.One at Mn nodule at 387-389 cm
V15-1601959-04-27-26.3500-34.6000-4468Piston corerV15-160-43.973.943.99BuriedMn crustManyConsolidated ashClayBrownish silty clay, burrowed abundantly, salted with manganese grains in varying amounts, mottled by patches of oxidized material, apparently no forams.A mass of manganese rubble at 394-399 cm, within which is a lighter material which might well be an altered ash layer
V15-1601959-04-27-26.3500-34.6000-4468Piston corerV15-160-53.973.943.99BuriedMn coatingThinShark toothClayBrownish silty clay, burrowed abundantly, salted with manganese grains in varying amounts, mottled by patches of oxidized material, apparently no forams.The 394-399 cm layer also contains a one cm long, thinly manganese coated, sharks' tooth
V15-151SBT 1959-06-1220.3550-66.4000-5722Trawl netV15-151SBT-10.000.000.00SurfaceMn noduleManyUp to 4.5 cmSandFine quartzose sand.Black manganese nodules. Sample consists of many broken and unbroken manganese nodules up to 45 mm. long.
V15-187 1959-06-0721.5670-67.1000-5293Piston corerV15-187-17.697.647.74BuriedMn micronoduleSeveralClayTannish-brown, well burrowed clay. Carbonate content around 35-40%Micronodules of manganese were observed throughout.
V15-1871959-06-0721.5670-67.1000-5293Piston corerV15-187-29.729.1110.32BuriedMn micronoduleSeveralClayBrown clay with apparently total lack of foraminifera and very low carbonate content (about 2%)Micronodules of manganese scattered throughout
V15-188 1959-06-1020.3830-66.1000-5786Piston corerV15-188-10.710.001.41BuriedMn micronoduleSeveralClayClay, moderate yellowish-brown (5YR4/4). Foraminifera content at top of layer practically nil.Quartz and manganese micronodules present.
V15-1881959-06-1020.3830-66.1000-5786Piston corerV15-188-20.330.320.34BuriedMn rich layerClayClay, moderate yellowish-brown (5YR4/4). Foraminifera content at top of layer practically nil.Manganese laminae occur between 32-34 cm
V15-1881959-06-1020.3830-66.1000-5786Piston corerV15-188-30.650.400.90BuriedMn rich layerClayClay, moderate yellowish-brown (5YR4/4). Foraminifera content at top of layer practically nil.Between 40-90 cm. the laminae of manganese are very pronounced
V15-197 1959-07-0327.3170-76.6500-1748Piston corerV15-197-10.240.220.26BuriedMn micronoduleFewOozeLight tan foraminiferal ooze poorly consolidated and highly calcareousSome nodules from 22-26 cm
V15-1971959-07-0327.3170-76.6500-1748Piston corerV15-197-20.420.280.56BuriedMn crustSeveralConsolidated clayOozeCalcareous foraminiferal ooze finer grained than top layer and mixed with some pebbles.Some calcareous clay occurs as compact pebble-sized concentrations cemented with manganese.
V15-202 1959-07-0627.9000-76.6000-3197Piston corerV15-202-10.060.000.11BuriedMn noduleSeveralUp to 3.0x2.x1.5 cmClayYellowish-gray (5 Y 7/2), blocky foraminiferal clay. Mixed with chalky, friable limestone fragments.Dark bluish-black manganese nodules ranging up to 3 x 2 x 1.5 cm. in size
V15-2021959-07-0627.9000-76.6000-3197Piston corerV15-202-20.480.390.57BuriedMn micronoduleFewClayYellowish-gray (5 Y 7/2), blocky foraminiferal clay10% manganese nodules and micronodules
V15-61SBT 1958-12-014.2500-85.1000-3266DredgeV15-61SBT-10.000.000.00SurfaceMn noduleSeveralManganese nodules
V15-78SBT 1958-12-22-9.5170-87.3670-4276DredgeV15-78SBT-10.000.000.00SurfaceMn nodule2Small2 small Mn nodules