Muséum National d'Histoire Naturelle (MNHN) (1979): Annotated record of the detailed examination of Mn deposits from SAFARI I cruise stations [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.855138
Always quote citation above when using data! You can download the citation in several formats below.
Published: 1979 (exact date unknown) • DOI registered: 2015-12-19
Related to:
MNHN (1979): SAFARI I Cruise - MD20, R/V Marion Dufresne, Core list. Muséum National d'Histoire Naturelle, Paris, unpublished, https://www.pangaea.de/expeditions/events/MD20
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):
Coverage:
Median Latitude: -29.376950 * Median Longitude: 53.812412 * South-bound Latitude: -32.700000 * West-bound Longitude: 35.750000 * North-bound Latitude: -22.683330 * East-bound Longitude: 68.366670
Date/Time Start: 1979-08-22T00:00:00 * Date/Time End: 1979-09-24T00:00:00
Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 7.400 m
Event(s):
MD20-03 (PS790265) * Latitude: -29.933330 * Longitude: 35.750000 * Date/Time: 1979-08-22T00:00:00 * Elevation: -2122.0 m * Recovery: 0.15 m * Location: Indian Ocean * Campaign: MD20 (SAFARI I, OSIRIS4) * Basis: Marion Dufresne (1972) * Method/Device: Piston corer (PC)
MD20-05 (PS790267) * Latitude: -29.750000 * Longitude: 36.366670 * Date/Time: 1979-08-22T00:00:00 * Elevation: -2317.0 m * Recovery: 6.18 m * Location: Indian Ocean * Campaign: MD20 (SAFARI I, OSIRIS4) * Basis: Marion Dufresne (1972) * Method/Device: Piston corer (PC)
MD20-06 (CP790001) * Latitude: -30.466670 * Longitude: 39.783330 * Date/Time: 1979-08-24T00:00:00 * Elevation: -4987.0 m * Recovery: 1 kg * Location: Indian Ocean * Campaign: MD20 (SAFARI I, OSIRIS4) * Basis: Marion Dufresne (1972) * Method/Device: Dredge (DRG)
Comment:
The cores and dredges described at this site were taken on the SAFARI I cruise from 20 August until 26 September 1979 by the Muséum National d'Histoire Naturelle from the R/V Marion Dufresne. A total of 51 cores, dredges and camera stations were recovered and are available at MNHN for sampling and study.
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 | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | MNHN | |||
| 2 | Latitude of event | Latitude | MNHN | |||
| 3 | Longitude of event | Longitude | MNHN | |||
| 4 | Elevation of event | Elevation | m | MNHN | ||
| 5 | Method/Device of event | Method/Device | MNHN | |||
| 6 | Identification | ID | MNHN | |||
| 7 | DEPTH, sediment/rock | Depth sed | m | MNHN | Geocode | |
| 8 | Depth, top/min | Depth top | m | MNHN | ||
| 9 | Depth, bottom/max | Depth bot | m | MNHN | ||
| 10 | Position | Position | MNHN | Visual description | ||
| 11 | Deposit type | Deposit type | MNHN | |||
| 12 | Quantity of deposit | Quantity | MNHN | |||
| 13 | Size | Size | MNHN | |||
| 14 | Substrate type | Substrate | MNHN | |||
| 15 | Sediment type | Sediment | MNHN | |||
| 16 | Comment | Comment | MNHN | |||
| 17 | Description | Description | MNHN |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
889 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Elevation [m] | 5 Method/Device | 6 ID | 7 Depth sed [m] | 8 Depth top [m] | 9 Depth bot [m] | 10 Position | 11 Deposit type | 12 Quantity | 13 Size | 14 Substrate | 15 Sediment | 16 Comment | 17 Description |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MD20-03 | -29.9333 | 35.7500 | -2122 | Piston corer | MD-PS790265-1 | 0.000 | 0.00 | 0.00 | Surface | Mn crust | 1 | Sediment | Nannofossil ooze | Nannofossil ooze with coccoliths, discoasters and foraminifers. | 0-0 Sediment covered by a crust with polymetallic oxydes. | |
| MD20-05 | -29.7500 | 36.3667 | -2317 | Piston corer | MD-PS790267-1 | 6.000 | 6.00 | 6.00 | Buried | Mn crust | Several | Fragment | Silt | Beige silt with coccoliths and foraminifers. Discoasters. Siliciclastics in traces. Pliocene (NN14) reworked debris (5%) | 600-600 At bottom, clayed, oxydes and amorphous components rich csediment with fragments of polymetallic crust. Siliciclastics. | |
| MD20-06 | -30.4667 | 39.7833 | -4987 | Dredge | MD-CP790001-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | 1 | Detrital ooze | Detrital ooze with clay minerals, nannofossils, and biogenous silica. Oxydes abundant. Rare foraminifers. Benthic fauna . | 1 polymetallic nodule. | ||
| MD20-08A | -30.7500 | 48.3167 | -4281 | Piston corer | MD-SI790007-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | 3.5 cm | Nannofossil ooze | Nannofossil ooze, beige to brown, with foraminifers and oxydes. Exogenous silica at top. Traces of detrital. | 0-0 Mn nodules, subspherical, 3.5 cm, 80 Nod/m2, 6.9 kg/m2 | |
| MD20-08A | -30.7500 | 48.3167 | -4281 | Piston corer | MD-SI790007-2 | 0.075 | 0.05 | 0.10 | Buried | Mn nodule | Several | 3.5 cm | Nannofossil ooze | Nannofossil ooze, beige to brown, with foraminifers and oxydes. Exogenous silica at top. Traces of detrital. | 5-10 Mn nodules, subspherical, 3.5 cm, 7 Nod/m2, 0.75 kg/m2 | |
| MD20-08A | -30.7500 | 48.3167 | -4281 | Piston corer | MD-SI790007-3 | 0.125 | 0.10 | 0.15 | Buried | Mn nodule | Several | 4.0 cm | Nannofossil ooze | Nannofossil ooze, beige to brown, with foraminifers and oxydes. Exogenous silica at top. Traces of detrital. | 10-15 0-0 Mn nodules, subspherical, 4 cm, 10 Nod/m2, 1.45 kg/m2 | |
| MD20-08A | -30.7500 | 48.3167 | -4281 | Piston corer | MD-SI790007-4 | 0.205 | 0.18 | 0.23 | Buried | Mn nodule | Several | 4.0 cm | Nannofossil ooze | Nannofossil ooze, beige to brown, with foraminifers and oxydes. Exogenous silica at top. Traces of detrital. | 18-23 Mn nodules, subspherical, 4 cm, 23 Nod/m2, 2.7 kg/m2 | |
| MD20-08A | -30.7500 | 48.3167 | -4281 | Piston corer | MD-SI790007-5 | 0.335 | 0.31 | 0.36 | Buried | Mn nodule | Several | 4.0 cm | Nannofossil ooze | Nannofossil ooze, beige to brown, with foraminifers and oxydes. Exogenous silica at top. Traces of detrital. | 31-36 Mn nodules, subspherical, 4 cm, 11 Nod/m2, 1.4 kg/m2 | |
| MD20-08A | -30.7500 | 48.3167 | -4281 | Piston corer | MD-SI790007-6 | 0.380 | 0.36 | 0.40 | Buried | Mn nodule | Several | 4.0 cm | Nannofossil ooze | Nannofossil ooze, beige to brown, with foraminifers and oxydes. Exogenous silica at top. Traces of detrital. | 36-40 Mn nodules, subspherical, 4 cm, 6 Nod/m2, 0.8 kg/m2 | |
| MD20-08B | -30.7333 | 48.3167 | -4365 | Dredge | MD-CP790002-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | 3.5 cm | Nannofossil ooze | Nannofossil ooze, beige to brown, with foraminifers and oxydes. Exogenous silica at top. | Spherical manganese nodules (mean diameter: 3.5cm) and of botryoidal shape | |
| MD20-08B | -30.7333 | 48.3167 | -4365 | Dredge | MD-CP790002-2 | 0.000 | 0.00 | 0.00 | Surface | Mn crust | Few | Nannofossil ooze | Nannofossil ooze, beige to brown, with foraminifers and oxydes. Exogenous silica at top. | Rare manganese crusts. | ||
| MD20-08B | -30.7333 | 48.3167 | -4365 | Dredge | MD-CP790002-3 | 0.000 | 0.00 | 0.00 | Surface | Mn coating | Several | Bone | Nannofossil ooze | Nannofossil ooze, beige to brown, with foraminifers and oxydes. Exogenous silica at top. | Some fragments of bones. | |
| MD20-08C | -30.7333 | 48.3667 | -4340 | Dredge | MD-DS790003-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | Nannofossil ooze | Nannofossil ooze, beige to brown, with foraminifers and oxydes. Fluid mud. | Polymetallic nodules of botryoidal and spherical shape. | ||
| MD20-08D | -30.5833 | 48.5167 | -4515 | Dredge | MD-CP790003-1 | 0.000 | 0.00 | 0.00 | Surface | Mn crust | Several | Concretion; hardened sediment | Nannofossil ooze | Nannofossil ooze, beige to brown, with foraminifers and oxydes. | Flat sedimentary concretions with polymetallic crusts | |
| MD20-08E | -30.6500 | 48.4667 | -4500 | Dredge | MD-DS790004-1 | 0.000 | 0.00 | 0.00 | Surface | Mn crust | 1 | Block; hardened sediment | Nannofossil ooze | Nannofossil ooze, beige to brown, with foraminifers and oxydes. | One Mn coated block of sediment. | |
| MD20-08F | -30.6833 | 48.4667 | -4450 | Piston corer | MD-SI790009-1 | 0.725 | 0.65 | 0.80 | Buried | Mn crust | Several | Fragment | Hardened sediment | Clayed carbonaceous ooze | Clayed carbonaceous ooze brown, with coccoliths, biogenous silica (diatoms) and oxydes. Detrital. Discoasters in traces. | 65-80 Indurated clayed level with debris of polymetallic crusts. |
| MD20-09 | -30.7833 | 48.1667 | -3976 | Piston corer | MD-PS790274-1 | 0.200 | 0.20 | 0.20 | Buried | Mn crust | Several | Fragment | Carbonate ooze | Carbonate ooze beige to brown with coccoliths (discoasters at bottom of CP) and foraminifers. Oxides and amorphous components. | 20-20 Fragments of polymetallic crust. | |
| MD20-10 | -30.7500 | 48.2500 | -4150 | Piston corer | MD-GS790275-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | 2.0-3.0 cm | Carbonate ooze | Carbonate ooze beige with coccoliths and discoasters. | 0-0 Mn nodules (2-3 cm) | |
| MD20-11 | -30.6500 | 48.2667 | -4035 | Dredge | MD-CP790004-1 | 0.000 | 0.00 | 0.00 | Surface | Mn coating | Several | Hardened detrital and bones | Calcareous ooze | Beige calcareous ooze with foraminifers. | Weak polymetallic crusts on detritical and bioclastic material (inner ears Cetacea). | |
| MD20-12 | -30.7500 | 48.2667 | -3927 | Piston corer | MD-GS790276-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | 2.0 cm | Nannofossil ooze | Nannofossil ooze with foraminifers. Biogenous silica and oxides. Discoasters in traces. | 0-0 Nodule beds (diameter of nodules 2cm) at sea floor level. | |
| MD20-13A | -30.7833 | 48.2333 | -4092 | Piston corer | MD-GS790277-1 | 1.150 | 1.15 | 1.15 | Buried | Mn nodule | Several | Nannofossil ooze | Nannofossil ooze beige with foraminifers. Oxides and discoasters in traces. | 115-115 Mn nodule bed. | ||
| MD20-13B | -30.7833 | 48.2333 | -4252 | Dredge | MD-CP790005-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Many | 3.5 cm | Nannofossil ooze | Nannofossil ooze beige with foraminifers biogenous silica. Oxides and discoasters in traces. | Spherical manganese nodules (more than 300 kg), with a mean size of 3.5 cm. Rare botryoidal shape. | |
| MD20-13B | -30.7833 | 48.2333 | -4252 | Dredge | MD-CP790005-2 | 0.000 | 0.00 | 0.00 | Surface | Mn crust | Several | 3.0-6.0 cm | Nannofossil ooze | Nannofossil ooze beige with foraminifers biogenous silica. Oxides and discoasters in traces. | Crusts and flat concretions with 3 to 6 cm width. | |
| MD20-13C | -30.7833 | 48.3000 | -4250 | Piston corer | MD-SI790010-1 | 0.150 | 0.15 | 0.15 | Buried | Mn nodule | Several | 1.0 cm | Carbonate ooze | Carbonate ooze brown with nannofossils and foraminifers. Biogenous silica at top. Oxides. | 15-15 Mn nodules, flattened, 1cm, 7 Nod/m2, 0.15 kg/m2. | |
| MD20-13C | -30.7833 | 48.3000 | -4250 | Piston corer | MD-SI790010-2 | 0.420 | 0.42 | 0.42 | Buried | Mn nodule | Several | 1.0-6.0 cm | Carbonate ooze | Carbonate ooze brown with nannofossils and foraminifers. Biogenous silica at top. Oxides. | 42-42 Mn nodules,various shapes, flattened, 6cm, 1 Nod/m2, 0.2 kg/m2. | |
| MD20-13C | -30.7833 | 48.3000 | -4250 | Piston corer | MD-SI790010-3 | 0.510 | 0.51 | 0.51 | Buried | Mn nodule | Several | 4.0 cm | Carbonate ooze | Carbonate ooze brown with nannofossils and foraminifers. Biogenous silica at top. Oxides. | 51-51 Mn nodules, 4cm, 15 Nod/m2, 0.85 kg/m2. | |
| MD20-13C | -30.7833 | 48.3000 | -4250 | Piston corer | MD-SI790010-4 | 0.580 | 0.58 | 0.58 | Buried | Mn nodule | Several | 4.0 cm | Carbonate ooze | Carbonate ooze brown with nannofossils and foraminifers. Biogenous silica at top. Oxides. | 58-58 Mn nodules, various shapes, 4cm, 1 Nod/m2, 0.15 kg/m2. | |
| MD20-15 | -31.8667 | 48.4667 | -3787 | Dredge | MD-CP790006-1 | 0.000 | 0.00 | 0.00 | Surface | Mn coating | Several | Block; hardened sediment | Nannofossil ooze | Nannofossil ooze with biogenous silica at top. Oxides in traces. | Hardened blocks of clear color, weakly coated on one side and bored burrows on the other side (hard-ground?). | |
| MD20-16 | -30.8500 | 49.0000 | -4725 | Dredge | MD-CP790007-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Few | Carbonate ooze | Carbonate ooze beige to brown with nannofossils and foraminifers. | Rare manganese nodules. | ||
| MD20-18 | -29.8667 | 48.5833 | -3800 | Dredge | MD-CP790008-1 | 0.000 | 0.00 | 0.00 | Surface | Mn slab | Several | 1.5 cm | Foraminiferal sand | Foraminiferal sand with biogenous silica. | Flat concretions, 1.5 cm broad | |
| MD20-18 | -29.8667 | 48.5833 | -3800 | Dredge | MD-CP790008-2 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Few | 2.0 cm | Foraminiferal sand | Foraminiferal sand with biogenous silica. | Rare small spherical and tubular nodules (2cm). | |
| MD20-19A | -32.6500 | 50.7667 | -4342 | Piston corer | MD-GS790284-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | 1 | Small | Nannofossil ooze | Nannofossil ooze beige, with foraminifers biogenous silica and amorphous components. Oxides and detrital. Discoasters in traces. | 0-0 One small spherical nodule. | |
| MD20-19A | -32.6500 | 50.7667 | -4342 | Piston corer | MD-GS790284-2 | 0.150 | 0.10 | 0.20 | Buried | Mn nodule | 3 | 2.5 cm | Nannofossil ooze | Nannofossil ooze beige, with foraminifers biogenous silica and amorphous components. Oxides and detrital. Discoasters in traces. | 10-20 3 botryoidal nodules (2.5 cm) | |
| MD20-19A | -32.6500 | 50.7667 | -4342 | Piston corer | MD-GS790284-3 | 0.850 | 0.80 | 0.90 | Buried | Mn nodule | 1 | 10.0 cm | Nannofossil ooze | Nannofossil ooze beige, with foraminifers biogenous silica and amorphous components. Oxides and detrital. Discoasters in traces. | 80-90 1 spherical nodule (10 cm) | |
| MD20-19A | -32.6500 | 50.7667 | -4342 | Piston corer | MD-GS790284-4 | 1.950 | 1.95 | 1.95 | Buried | Mn nodule | 1 | 2.5 cm | Red clay | 100-250 Red clay, brownish, with quartz and weathered feldspars, amorphous components and phillipsite. Volcanic ashes in traces. | 195-195 1 Mn nodule (2.5 cm) | |
| MD20-19B | -32.6500 | 50.7833 | -4340 | Piston corer | MD-SI790011-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | 5.0-10.0 cm | Nannofossil ooze | Nannofossil ooze beige, with foraminifers biogenous silica and amorphous components. | Nodules from the bottom scraper, spherical, 5-10 cm, 20 Nod/m2, 6.5 kg/m2 | |
| MD20-19C | -32.6667 | 50.7833 | -4155 | Dredge | MD-CP790009-1 | 0.000 | 0.00 | 0.00 | Surface | Mn slab | Several | 10.0-15.0 cm | Nannofossil ooze | Brown nannofossil ooze with foraminifers. Biogenous silica (more abundant at top) and discoasters. | Flat concretions and crusts, 10-15 cm width | |
| MD20-19C | -32.6667 | 50.7833 | -4155 | Dredge | MD-CP790009-2 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Few | Small | Nannofossil ooze | Brown nannofossil ooze with foraminifers. Biogenous silica (more abundant at top) and discoasters. | Rare small spherical nodules. | |
| MD20-19D | -32.6833 | 50.7667 | -4272 | Piston corer | MD-SI790012-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | Nannofossil ooze | Brown nannofossil ooze with foraminifers. Biogenous silica (more abundant at top) and discoasters. | 0-0 Mn nodules 6 levels of polymetallic nodules (total weight 57 kg/m3) | ||
| MD20-19D | -32.6833 | 50.7667 | -4272 | Piston corer | MD-SI790012-2 | 0.075 | 0.05 | 0.10 | Buried | Mn nodule | Several | Nannofossil ooze | Brown nannofossil ooze with foraminifers. Biogenous silica (more abundant at top) and discoasters. | 5-10 Mn nodules. 6 levels of polymetallic nodules (total weight 57 kg/m3) | ||
| MD20-19D | -32.6833 | 50.7667 | -4272 | Piston corer | MD-SI790012-3 | 0.150 | 0.15 | 0.15 | Buried | Mn nodule | Several | Nannofossil ooze | Brown nannofossil ooze with foraminifers. Biogenous silica (more abundant at top) and discoasters. | 15-15 Mn nodules. 6 levels of polymetallic nodules (total weight 57 kg/m3) | ||
| MD20-19D | -32.6833 | 50.7667 | -4272 | Piston corer | MD-SI790012-4 | 0.200 | 0.20 | 0.20 | Buried | Mn nodule | Several | Nannofossil ooze | Brown nannofossil ooze with foraminifers. Biogenous silica (more abundant at top) and discoasters. | 20-20 Mn nodules. 6 levels of polymetallic nodules (total weight 57 kg/m3) | ||
| MD20-19D | -32.6833 | 50.7667 | -4272 | Piston corer | MD-SI790012-5 | 0.300 | 0.30 | 0.30 | Buried | Mn nodule | Several | Nannofossil ooze | Brown nannofossil ooze with foraminifers. Biogenous silica (more abundant at top) and discoasters. | 30-30 Mn nodules. 6 levels of polymetallic nodules (total weight 57 kg/m3) | ||
| MD20-19D | -32.6833 | 50.7667 | -4272 | Piston corer | MD-SI790012-6 | 0.400 | 0.40 | 0.40 | Buried | Mn nodule | Several | Nannofossil ooze | Brown nannofossil ooze with foraminifers. Biogenous silica (more abundant at top) and discoasters. | 40-40 Mn nodules. 6 levels of polymetallic nodules (total weight 57 kg/m3) | ||
| MD20-19E | -32.6833 | 50.7667 | -4290 | Dredge | MD-CP790010-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | 5.0-6.0 cm | Nannofossil ooze | Brown nannofossil ooze with foraminifers. | Spherical nodules with mean diameter 5 -6 cm. | |
| MD20-19F | -32.6667 | 50.7667 | -4295 | Piston corer | MD-SI790013-1 | 0.500 | 0.50 | 0.50 | Buried | Mn nodule | Several | 5.0-15.0 cm | Nannofossil ooze | Brown nannofossil ooze with foraminifers | 50-50 Nodules from the basal part of the box-core (estimated depth: 50cm bsf). spherical and flattened. 5-15 cm. 80 Nod/m2 80 kg/m2 | |
| MD20-20 | -32.7000 | 52.7667 | -4538 | Dredge | MD-CP790011-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | 3.0 cm | Nannofossil ooze | Brown nannofossil ooze with foraminifers | Manganese nodules of botryoidal shape and flat concretions. | |
| MD20-22A | -31.4000 | 61.7833 | -3862 | Piston corer | MD-PS790286-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | Nanofossil ooze | Nannofossil ooze with foraminifers. Biogenous silica. | 0-0 Mn nodules. | ||
| MD20-22B | -31.3833 | 61.7667 | -3931 | Piston corer | MD-PS790287-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | 4 | 1.0 cm | Nannofossil ooze | Nanofossil ooze, beige, with oxides and amorphous components.Biogenous silica at top. | 0-0 4 Mn nodules, 1 cm | |
| MD20-22B | -31.3833 | 61.7667 | -3931 | Piston corer | MD-PS790287-2 | 1.150 | 1.15 | 1.15 | Buried | Mn nodule | 1 | 1.0 cm | Nannofossil ooze | Nanofossil ooze, beige, with oxides and amorphous components.Biogenous silica at top. | 115-115 1 Mn nodule, 1 cm | |
| MD20-22B | -31.3833 | 61.7667 | -3931 | Piston corer | MD-PS790287-3 | 2.140 | 2.13 | 2.15 | Buried | Mn nodule | 1 | 2.0 cm | Nannofossil ooze | Nanofossil ooze, beige, with oxides and amorphous components.Biogenous silica at top. | 213-215 1 Mn nodule, 2 cm | |
| MD20-22B | -31.3833 | 61.7667 | -3931 | Piston corer | MD-PS790287-4 | 3.560 | 3.56 | 3.56 | Buried | Mn nodule | 1 | 1.0 cm | Nannofossil ooze | Nanofossil ooze, beige, with oxides and amorphous components.Biogenous silica at top. | 356-356 1 Mn nodule, 1 cm | |
| MD20-22B | -31.3833 | 61.7667 | -3931 | Piston corer | MD-PS790287-5 | 3.725 | 3.71 | 3.74 | Buried | Mn nodule | 1 | 3.0 cm | Nannofossil ooze | Nanofossil ooze, beige, with oxides and amorphous components.Biogenous silica at top. | 371-374 1 Mn nodule, 3 cm | |
| MD20-22B | -31.3833 | 61.7667 | -3931 | Piston corer | MD-PS790287-6 | 3.885 | 3.87 | 3.90 | Buried | Mn nodule | 1 | 3.0 cm | Nannofossil ooze | Nanofossil ooze, beige, with oxides and amorphous components.Biogenous silica at top. | 387-390 1 Mn nodule, 3 cm | |
| MD20-22B | -31.3833 | 61.7667 | -3931 | Piston corer | MD-PS790287-7 | 5.350 | 5.33 | 5.37 | Buried | Mn nodule | 1 | 2.5 cm | Nannofossil ooze | Nanofossil ooze, beige, with oxides and amorphous components.Biogenous silica at top. | 533-537 1 Mn nodule, 2.5 cm | |
| MD20-22B | -31.3833 | 61.7667 | -3931 | Piston corer | MD-PS790287-8 | 6.130 | 6.12 | 6.14 | Buried | Mn nodule | 1 | 1.5 cm | Nannofossil ooze | Nanofossil ooze, beige, with oxides and amorphous components.Biogenous silica at top. | 612-614 1 Mn nodule, 1.5 cm | |
| MD20-22B | -31.3833 | 61.7667 | -3931 | Piston corer | MD-PS790287-9 | 7.280 | 7.26 | 7.30 | Buried | Mn nodule | 1 | 4.0 cm | Nannofossil ooze | Nanofossil ooze, beige, with oxides and amorphous components.Biogenous silica at top. | 726-730 1 Mn nodule, 4 cm | |
| MD20-22C | -31.3833 | 61.8000 | -4215 | Piston corer | MD-PS790288-1 | 0.000 | 0.00 | 0.00 | Surface | Mn crust | Few | Thick | Bolck: basalt | Detrital red clay | Detrital Red clay with amorphous components, smectites and oxydes. Nannofossils. Discoasters in traces, biogenous silica, and phillipsite. | Rare blocks of basalt, weathered and with a thick oxyde crust. |
| MD20-22D | -31.4000 | 61.7667 | -3910 | Piston corer | MD-GS790289-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | Fragment | Core; basalt | Detrital sand | Detrital sand with clay minerals, foraminifer-rich. Traces of zeolithes. | Blocks of strongly weathered basalt (well-crystallized day minerals). Fragments of oxyde concretions with basalt nuclei. Rare well-preserved basalt debris. |
| MD20-23A | -29.8667 | 62.0000 | -4110 | Piston corer | MD-PS790290-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | 20 | Small | Calcareous ooze | Brown calcareous ooze with nannos, and foraminifers. Biogenoussilica. Phillipsite and volcanicglass in traces | 0-0 Bed of small nodules on top (20 nodules retrieved) | |
| MD20-23A | -29.8667 | 62.0000 | -4110 | Piston corer | MD-PS790290-2 | 2.700 | 0.60 | 4.80 | Buried | Mn nodule | Many | Red clay | 60-480 Red clay with oxydes and amorphous components. Detrital fraction vwth quartz and plagioclases at the top of the unit, and palagonite plus pryoxene at the bottom. Micro-nodules abundant. | Approx. 15 beds of interstratified nodules and polymetallic crusts. | ||
| MD20-23B | -29.8833 | 62.0500 | -3348 | Piston corer | MD-PS790291-1 | 0.050 | 0.00 | 0.10 | Buried | Mn crust | Several | Fragment | Calcareous ooze | Brown calcareous ooze with nannos, and foraminifers. | 0-10 Alteration basaltic sand and fragments of oxide crusts. Carbonate debris (foraminiters ?) | |
| MD20-23C | -29.8667 | 62.0000 | -4000 | Dredge | MD-DR790020-1 | 0.000 | 0.00 | 0.00 | Surface | Mn crust | Many | 4.0 cm thick | Rock; green rock | Calcareous ooze | Brown calcareous ooze with nannos, and foraminifers. | Crusts (350kg) with irregular shapes, 4 cm thick. Petrography: Base of crusts made of green rocks. |
| MD20-23C | -29.8667 | 62.0000 | -4000 | Dredge | MD-DR790020-2 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Few | 3.5 cm | Calcareous ooze | Brown calcareous ooze with nannos, and foraminifers. | Rare spherical manganese nodules (10 kg) with a mean size of 3.5 cm. | |
| MD20-23D | -29.9000 | 61.9167 | -4309 | Piston corer | MD-GS790292-1 | 0.550 | 0.55 | 0.55 | Buried | Mn nodule | 2 | 3.0 cm | Nannofossil ooze | Beige to brown nannofossil ooze, with amorphous components and oxides. On top, foraminifers and biogenous silica . DetritaI and phillipsite in traces. | 55-55 2 Mn nodules, 3 cm | |
| MD20-23D | -29.9000 | 61.9167 | -4309 | Piston corer | MD-GS790292-2 | 3.500 | 3.50 | 3.50 | Buried | Mn nodule | 2 | 4.0 cm | Nannofossil ooze | Beige to brown nannofossil ooze, with amorphous components and oxides. On top, foraminifers and biogenous silica . DetritaI and phillipsite in traces. | 350-350 2 Mn nodules, 4 cm | |
| MD20-23D | -29.9000 | 61.9167 | -4309 | Piston corer | MD-GS790292-3 | 3.800 | 3.80 | 3.80 | Buried | Mn nodule | 1 | 5.0 cm | Nannofossil ooze | Beige to brown nannofossil ooze, with amorphous components and oxides. On top, foraminifers and biogenous silica . DetritaI and phillipsite in traces. | 380-380 1 Mn nodule, 5 cm | |
| MD20-23D | -29.9000 | 61.9167 | -4309 | Piston corer | MD-GS790292-4 | 5.550 | 5.55 | 5.55 | Buried | Mn nodule | 8 | 4.0 cm | Carbonate ooze | 420-755 Clayed carbonate ooze with amorphous components, oxydes, and carbonates (nannofossils and discoasters). Phillipsite in the upper part of the unit. More detrital at the bottom of the unit. | 555-555 8 Mn nodules, 4 cm | |
| MD20-23D | -29.9000 | 61.9167 | -4309 | Piston corer | MD-GS790292-5 | 6.000 | 6.00 | 6.00 | Buried | Mn nodule | 2 | 2.0 cm | Carbonate ooze | 420-755 Clayed carbonate ooze with amorphous components, oxydes, and carbonates (nannofossils and discoasters). Phillipsite in the upper part of the unit. More detrital at the bottom of the unit. | 600-600 2 Mn nodules, 2 cm | |
| MD20-23D | -29.9000 | 61.9167 | -4309 | Piston corer | MD-GS790292-6 | 7.050 | 7.05 | 7.05 | Buried | Mn nodule | 1 | 1.5 cm | Carbonate ooze | 420-755 Clayed carbonate ooze with amorphous components, oxydes, and carbonates (nannofossils and discoasters). Phillipsite in the upper part of the unit. More detrital at the bottom of the unit. | 705-705 1 Mn nodule, 1.5 cm | |
| MD20-23D | -29.9000 | 61.9167 | -4309 | Piston corer | MD-GS790292-7 | 7.400 | 7.40 | 7.40 | Buried | Mn nodule | 1 | 4.0 cm | Carbonate ooze | 420-755 Clayed carbonate ooze with amorphous components, oxydes, and carbonates (nannofossils and discoasters). Phillipsite in the upper part of the unit. More detrital at the bottom of the unit. | 740-740 1 Mn nodule, 4 cm | |
| MD20-24A | -28.9333 | 68.3667 | -4320 | Piston corer | MD-PS790293-1 | 0.000 | 0.00 | 0.00 | Surface | Mn crust | Several | Block; basalt | Red clay | Red clay with oxides and amorphous components, phillipsite. | Blocks and gravels of basalt with crust. Fragments of oxide crusts. | |
| MD20-24B | -28.8833 | 68.2500 | -4386 | Piston corer | MD-GS790294-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | Small | Calcareous ooze | Brown calcareous ooze (10YR5/4 to 3/4) with nannofossils, amorphous components and oxides. Foraminifers, detrital in traces in darker levels.Traces of phillipsite and, on top, biogenous silica. | 0-0 a bed of small nodules | |
| MD20-24B | -28.8833 | 68.2500 | -4386 | Piston corer | MD-GS790294-2 | 7.350 | 7.35 | 7.35 | In sediment | Mn micronodule | Several | Calcareous ooze | Brown calcareous ooze (10YR5/4 to 3/4) with nannofossils, amorphous components and oxides. Foraminifers, detrital in traces in darker levels.Traces of phillipsite and, on top, biogenous silica. | 735-735 Micronodules | ||
| MD20-24B | -28.8833 | 68.2500 | -4386 | Piston corer | MD-GS790294-3 | 7.400 | 7.40 | 7.40 | In sediment | Mn nodule | Several | 6.0 cm | Calcareous ooze | Brown calcareous ooze (10YR5/4 to 3/4) with nannofossils, amorphous components and oxides. Foraminifers, detrital in traces in darker levels.Traces of phillipsite and, on top, biogenous silica. | 740-740 Bed of large nodules (6 cm). | |
| MD20-24C | -28.8833 | 68.3667 | -4575 | Dredge | MD-DR790021-1 | 0.000 | 0.00 | 0.00 | Surface | Mn crust | Several | 6.0-7.0 thick crust | Rock; weathered baslt | Calcareous ooze | Brown calcareous ooze (10YR5/4 to 3/4) with nannofossils, amorphous components and oxides. | Massive crusts with a knolly surface, 6 to 7 cm thick. Base of these crusts are made of weathered basaltic material. Numerous basaltic rocks. |
| MD20-25A | -24.0667 | 59.9000 | -4574 | Piston corer | MD-GS790296-1 | 0.050 | 0.00 | 0.10 | In sediment | Mn crust | Several | Fragment | Pebble; basalt | Clayed ooze | Brown clayed ooze with phillipsite, oxydes and detrital material. | 0-10 Fragments of crusts, of basalts and indurated pebbles. |
| MD20-25A | -24.0667 | 59.9000 | -4574 | Piston corer | MD-GS790296-2 | 0.050 | 0.00 | 0.10 | In sediment | Mn nodule | Several | Fragment | Clayed ooze | Brown clayed ooze with phillipsite, oxydes and detrital material. | 0-10 Fragments of polymetallic nodules | |
| MD20-25B | -24.0667 | 59.9000 | -4653 | Piston corer | MD-GS790297-1 | 0.050 | 0.00 | 0.10 | In sediment | Mn crust | Several | Rock; weathered basalt | Clayed ooze | Brown clayed ooze with phillipsite, oxydes and detrital material. | 0-10 Oxyde crusts on weathered basalt fragments at the bottom | |
| MD20-26A | -24.3500 | 58.2833 | -5050 | Dredge | MD-DS790005-1 | 0.000 | 0.00 | 0.00 | Surface | Mn crust | Several | Red clay | Red clay with biogenous silica, detrital, amorphous components. | 0-0 Crusts and flat concretions | ||
| MD20-26A | -24.3500 | 58.2833 | -5050 | Dredge | MD-DS790005-2 | 0.000 | 0.00 | 0.00 | Surface | Mn slab | Several | Red clay | Red clay with biogenous silica, detrital, amorphous components. | 0-0 Crusts and flat concretions | ||
| MD20-26B | -24.3833 | 58.3500 | -4890 | Dredge | MD-CP790012-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | 3.5 cm | Red clay | Red clay with biogenous silica, detrital, amorphous components. | 0-0 Manganese nodules of botryoidal shape with a mean diameter of 3.5 cm. | |
| MD20-26B | -24.3833 | 58.3500 | -4890 | Dredge | MD-CP790012-2 | 0.000 | 0.00 | 0.00 | Surface | Mn coating | Many | Tooth; shark and Cetecea ear | Red clay | Red clay with biogenous silica, detrital, amorphous components. | 0-0 Numerous coated teeth of sharks. Weakly coated inner ear of Cetacea. | |
| MD20-26C | -24.4167 | 58.3167 | -4987 | Dredge | MD-CP790013-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | 3.0 cm | Red clay | Red clay with biogenous silica, detrital, amorphous components. | 0-0 Manganese nodules of botryoidal shape, with a mean diameter of 3 cm | |
| MD20-26C | -24.4167 | 58.3167 | -4987 | Dredge | MD-CP790013-2 | 0.000 | 0.00 | 0.00 | Surface | Mn coating | Few | Bone | Red clay | Red clay with biogenous silica, detrital, amorphous components. | 0-0 Some coated bones. | |
| MD20-27A | -23.4833 | 57.9000 | -4740 | Dredge | MD-CP790014-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | 2.0-6.0 cm | Red clay | Red clay with oxides, amorphous components and biogenous silica. On top: foraminifers and nannos. | Manganses nodules of botryoidal shape. Rare spherical concretions. Size between 2 and 6 cm. | |
| MD20-27B | -23.5833 | 57.9667 | -4500 | Piston corer | MD-SI790016-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | 6.0 cm | Carbonaceous ooze | Clayed carbonaceous ooze, brown, with biogenous silica and detrital material. | Nodules on top, spherical and bothryoidal, 6.0 cm max, 160 Nod/m2 160, 10 kg/m2 | |
| MD20-28A | -22.6833 | 58.3500 | -4560 | Photo/Video | MD-CS790019-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Many | Detrital ooze | Clayed detrital ooze, brown, with oxydes and amorphous components. Phillipsite, foraminiters, and biogenous silica at the top. | Camera - Dense nodule field. | ||
| MD20-28B | -22.6833 | 58.3500 | -4460 | Piston corer | MD-SI790017-1 | 0.200 | 0.20 | 0.20 | In sediment | Mn nodule | Several | 4.0 cm | Red clay | Clayed detrital mud with oxides. | 20-20 Mn nodule bed. Spherical, 4.0 cm, 100 kg/m2, 100 kg/m3. | |
| MD20-29 | -24.3667 | 58.2833 | -5060 | Dredge | MD-CP790015-1 | 0.000 | 0.00 | 0.00 | Surface | Mn nodule | Several | 3.0 cm | Detrital ooze | Clayed detrital ooze with biogenous silica and amorphous components. | Manganese nodules of botryoidal shape with a mean diameter of 3 cm. |