Mizuno, Atsuyuki; Moritani, Tomoyuki (1977): Description of manganese nodules and crust collected from the Hakurei Maru Cruise GH76-1, January-March, 1976, in the Central Pacific Basin [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.859797, Supplement to: Mizuno, A; Moritani, T (1977): Deep Sea Mineral Resources Investigation in the Central-Eastern Part of Central Pacific Basin, January - March 1976 (GH76-1 Cruise). Geological Survey of Japan, Cruise Report, 8, 217 pp, https://www.gsj.jp/en/publications/cruise-rep/cruise08.html
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Abstract:
This report of the GH76-1 cruise mainly includes the results of the on-board observations in the survey area of the medial-eastern part of Central Pacific Basin (5 degree -10 degree N, 170 degree -175 degree W) and partly of analytical work at the on-shore laboratory. In addition, the results of some on-board optical and geophysical works along the tracks of Japan-Ogasawara-survey area-Hawaii, are described in appendices. The GH76-1 cruise of the R/V Hakurei-maru was carried out from the 10th January to the 9th March, 1976 as the second phase field work of the Geological Survey of Japan five-year research program of study on the manganese nodule deposits of the Central Pacific Basin and also as a part of the National Research Institute for Pollution and Resources research program of technological study on the exploitation of deep sea mineral resources. The GSJ research program (F.Y. 1974-F.Y. 1978) aims at providing basic information on the manganese nodule distribution and their origin on the deep sea floor of the Central Pacific Basin bounded by the Marshall Ridge to the west, the Christmas Ridge to the east, and the Mid-Pacific Mountains to the north. The first phase of investigation was carried out during the GH74-5 cruise in the eastern part of the area (6 degree -10 degree 30'W, 164 degree 30'-171 degree 30'N)(Mizuno and Chujo, eds., 1975), and the present second phase covered an areas of 5 degree square, just west of the GH74-5 area.
Project(s):
Coverage:
Median Latitude: 8.087700 * Median Longitude: -172.715131 * South-bound Latitude: 4.960000 * West-bound Longitude: -174.038330 * North-bound Latitude: 10.013330 * East-bound Longitude: -169.985000
Date/Time Start: 1976-01-25T00:00:00 * Date/Time End: 1976-02-29T00:00:00
Minimum DEPTH, sediment/rock: 0.0 m * Maximum DEPTH, sediment/rock: 3.0 m
Event(s):
GH76-1-C6 (Station 414A-3) * Latitude: 4.985000 * Longitude: -172.983330 * Date/Time: 1976-02-22T00:00:00 * Elevation: -5410.0 m * Location: Pacific Ocean * Campaign: GH76-1 * Basis: Hakurei-Maru (1974) * Method/Device: Photo/Video (PV)
GH76-1-C7 (Station 408A-1) * Latitude: 9.988330 * Longitude: -174.008330 * Date/Time: 1976-02-25T00:00:00 * Elevation: -5820.0 m * Location: Pacific Ocean * Campaign: GH76-1 * Basis: Hakurei-Maru (1974) * Method/Device: Photo/Video (PV)
GH76-1-C8(N) (Station 407A) * Latitude: 8.988330 * Longitude: -174.000000 * Date/Time: 1976-02-26T00:00:00 * Elevation: -5850.0 m * Location: Pacific Ocean * Campaign: GH76-1 * Basis: Hakurei-Maru (1974) * Method/Device: Photo/Video (PV)
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 | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Mizuno, Atsuyuki | |||
| 2 | Optional event label | Event 2 | Mizuno, Atsuyuki | |||
| 3 | Latitude of event | Latitude | Mizuno, Atsuyuki | |||
| 4 | Longitude of event | Longitude | Mizuno, Atsuyuki | |||
| 5 | Elevation of event | Elevation | m | Mizuno, Atsuyuki | ||
| 6 | Date/Time of event | Date/Time | Mizuno, Atsuyuki | |||
| 7 | Identification | ID | Mizuno, Atsuyuki | |||
| 8 | DEPTH, sediment/rock | Depth sed | m | Mizuno, Atsuyuki | Geocode | |
| 9 | Position | Position | Mizuno, Atsuyuki | Visual description | ||
| 10 | Deposit type | Deposit type | Mizuno, Atsuyuki | |||
| 11 | Quantity of deposit | Quantity | Mizuno, Atsuyuki | |||
| 12 | Size | Size | Mizuno, Atsuyuki | |||
| 13 | Substrate type | Substrate | Mizuno, Atsuyuki | |||
| 14 | Sediment type | Sediment | Mizuno, Atsuyuki | |||
| 15 | Description | Description | Mizuno, Atsuyuki |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
603 data points
Data
| 1 Event | 2 Event 2 | 3 Latitude | 4 Longitude | 5 Elevation [m] | 6 Date/Time | 7 ID | 8 Depth sed [m] | 9 Position | 10 Deposit type | 11 Quantity | 12 Size | 13 Substrate | 14 Sediment | 15 Description |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GH76-1-FG1-2 | Station 403 | 4.9600 | -173.9483 | -5660 | 1976-01-25 | GH76-1-FG1-2-1 | 0.0 | Surface | Mn nodule | Few | Moderate | Core; pumice coated oxides | Siliceous clay | Moderately sized polylobate nodules |
| GH76-1-G169 | Station 405 | 6.9700 | -174.0133 | -5600 | 1976-01-26 | GH76-1-G169-1 | 0.0 | Surface | Mn nodule | Few | Core; pumice | Siliceous clay | Spheroidal/ellipsoidal granular nodules. | |
| GH76-1-FG4-2 | Station 406 | 8.0000 | -174.0333 | -5980 | 1976-01-27 | GH76-1-FG4-2-1 | 0.0 | Surface | Mn nodule | Few | Small | Core; pumice | Siliceous clay | Small ellipsoidal granular nodules. |
| GH76-1-G171 | Station 407 | 9.0067 | -174.0117 | -5910 | 1976-01-27 | GH76-1-G171-1 | 0.0 | Surface | Mn nodule | Many | 2.0-10.0 cm | Core; fractured nodules and phosphatized sediments | Clay | Discoidal/irregular spheroidal nodules (ranging 2 to 10cm) with smooth surface |
| GH76-1-FG5-1 | Station 407 | 9.0050 | -174.0050 | -5910 | 1976-01-27 | GH76-1-FG5-1-1 | 0.0 | Surface | Mn nodule | Many | Up to large | Core; fractured nodules and phosphatized sediments | Clay | Large-small, variously shaped nodules; brittle; top surface smooth, botryoidal; bottom gritty. |
| GH76-1-FG5-2 | Station 407 | 9.0067 | -174.0050 | -5920 | 1976-01-27 | GH76-1-FG5-2-1 | 0.0 | Surface | Mn nodule | Many | 4.0-10.0 cm | Core; fractured nodules and phosphatized sediments | Clay | Irregular discoidal (4 to 10cm in diameter) with smooth surface |
| GH76-1-D137(N) | Station 407A | 8.9883 | -174.0000 | -5850 | 1976-02-26 | GH76-1-D137(N)-1 | 0.0 | Surface | Mn nodule | Many | Up to large | Core; fractured nodules and phosphatized sediments | Clay | Large-small, variously shaped nodules; brittle; top surface smooth, botryoidal; bottom gritty. |
| GH76-1-FG32-1 | Station 407A-2 | 9.0050 | -173.9617 | -5800 | 1976-02-29 | GH76-1-FG32-1-1 | 0.0 | Surface | Mn coating | Several | Hardground | Fragments of altered rock with manganese coating. | ||
| GH76-1-FG32-1 | Station 407A-2 | 9.0050 | -173.9617 | -5800 | 1976-02-29 | GH76-1-FG32-1-2 | 0.0 | Surface | Mn nodule | Few | 1.4-4.0 cm | Core; altered volcanic rocks | Hardground | Discoidal/ellipsoidal (1.4 to 4cm in diameter) with smooth surface |
| GH76-1-FG32-2 | Station 407A-2 | 9.0033 | -173.9267 | -5930 | 1976-02-29 | GH76-1-FG32-2-1 | 0.0 | Surface | Mn nodule | Many | 4.0-8.0 cm | Core; phosphatized sediments | Clay | Spheroidal/mushroom (4 to 8cm in diameter) with small botryoidal surface |
| GH76-1-FG32-3 | Station 407A-2 | 9.0050 | -173.8883 | -5930 | 1976-02-29 | GH76-1-FG32-3-1 | 0.0 | Surface | Mn nodule | Several | 2.0-6.0 cm | Core; phosphatized sediments | Clay | Spheroidal/ellipsoidal (2 to 6cm in diameter) with gritty strawberry-like surface |
| GH76-1-FG32-4 | Station 407A-2 | 9.0050 | -173.8550 | -5940 | 1976-02-29 | GH76-1-FG32-4-1 | 0.0 | Surface | Mn nodule | 4 | 1.0-4.0 cm | Core; phosphatized sediments | Clay | Four ellipsoidal/mushroom/polylobate nodules (1 to 4cm in diameter) with rough surface |
| GH76-1-FG32-5 | Station 407A-2 | 9.0383 | -173.8867 | -5920 | 1976-02-29 | GH76-1-FG32-5-1 | 0.0 | Surface | Mn nodule | 14 | 2.0-4.0 cm | Core; phosphatized sediments | Clay | Fourteen small gritty nodules. Spheroidal/ellipsoidal (ranging 2 to 4cm) with strawberry-like surface |
| GH76-1-FG32-6 | Station 407A-2 | 9.0400 | -173.9167 | -5900 | 1976-02-29 | GH76-1-FG32-6-1 | 0.0 | Surface | Mn nodule | 11 | 2.0-4.0 cm | Core; phosphatized sediments | Clay | Eleven small gritty nodules. Ellipsoidal (2 to 4cm in diameter) with strawberry-like surface |
| GH76-1-FG32-7 | Station 407A-2 | 9.0400 | -173.9467 | -5910 | 1976-02-29 | GH76-1-FG32-7-1 | 0.0 | Surface | Mn nodule | 20 | 2.0-6.0 cm | Core; phosphatized sediments | Clay | Twenty gritty small nodules. Spheroidal/ellipsoidal (2 to 6cm in diameter) with strawberry-like surface |
| GH76-1-FG32-8 | Station 407A-2 | 9.0400 | -173.9767 | -5980 | 1976-02-29 | GH76-1-FG32-8-1 | 0.0 | Surface | Mn nodule | 14 | 2.0-6.0 cm | Core; phosphatized sediments | Clay | Fourteen gritty small nodules. Spheroidal/discoidal/polylobate (ranging 2 to 6cm) with small botryoidal surface |
| GH76-1-G172 | Station 408 | 10.0117 | -173.9950 | -5830 | 1976-01-28 | GH76-1-G172-1 | 0.0 | Surface | Mn nodule | Many | 4.0-10.0 cm | Core; phosphatized sediments, composite pisolitic nodules | Clay | Large flattened botryoidal, with intergrowth, brittle nodules. Top surface smooth, bottom gritty. Irregular discoidal/ ellipsoidal/ polylobate (4 to 10cm in diameter) with smooth surface |
| GH76-1-FG6-1 | Station 408 | 10.0117 | -173.9950 | -5820 | 1976-01-28 | GH76-1-FG6-1-1 | 0.0 | Surface | Mn nodule | Many | Large | Core; phosphatized sediments, composite pisolitic nodules | Clay | Large flattened botryoidal, with intergrowth, brittle nodules. Top surface smooth, bottom gritty. |
| GH76-1-FG6-2 | Station 408 | 10.0133 | -173.9950 | -5820 | 1976-01-28 | GH76-1-FG6-2-1 | 0.0 | Surface | Mn nodule | Many | 0.5-7.0 cm | Core; phosphatized sediments, composite pisolitic nodules | Clay | Large flattened botryoidal, with intergrowth, brittle nodules. Top surface smooth, bottom gritty. Irregular discoidal/polynodule (ranging from 0.5 to 7cm) with smooth surface |
| GH76-1-P73 | Station 408A | 9.9783 | -174.0150 | -5820 | 1976-02-25 | GH76-1-P73-1 | 0.0 | Surface | Mn nodule | Several | Clay | 115 cm clay core, with manganese nodules at the top. | ||
| GH76-1-C7 | Station 408A-1 | 9.9883 | -174.0083 | -5820 | 1976-02-25 | GH76-1-C7-1 | 0.0 | Surface | Mn nodule | Many | Clay | Nodule coverage 70%. | ||
| GH76-1-G173 | Station 409 | 10.0000 | -173.0017 | -5810 | 1976-01-28 | GH76-1-G173-1 | 0.0 | Surface | Mn nodule | Several | Moderate | Core; small clay particles, shark's teeth | Siliceous clay | Moderate-Small spheroidal botryoidal nodules. |
| GH76-1-FG7-1 | Station 409 | 10.0050 | -173.0000 | -5830 | 1976-01-28 | GH76-1-FG7-1-1 | 0.0 | Surface | Mn nodule | Several | 2.0-4.0 cm | Core; small clay particles, shark's teeth | Siliceous clay | Moderate-Small spheroidal botryoidal nodules. Spheroidal (2 to 4cm in diameter) with rough surface |
| GH76-1-FG7-2 | Station 409 | 10.0033 | -173.0000 | -5830 | 1976-01-28 | GH76-1-FG7-2-1 | 0.0 | Surface | Mn nodule | Several | Moderate | Core; small clay particles, shark's teeth | Siliceous clay | Moderate-Small spheroidal botryoidal nodules. |
| GH76-1-G174 | Station 410 | 8.9817 | -173.0000 | -5890 | 1976-01-28 | GH76-1-G174-1 | 0.0 | Surface | Mn nodule | Few | Small | Siliceous clay | Small spheroidal granular nodules. | |
| GH76-1-FG8-1 | Station 410 | 8.9850 | -172.0098 | -5870 | 1976-01-28 | GH76-1-FG8-1-1 | 0.0 | Surface | Mn nodule | Several | Small | Siliceous clay | Small spheroidal granular nodules. | |
| GH76-1-FG8-2 | Station 410 | 8.9850 | -172.0098 | -5860 | 1976-01-28 | GH76-1-FG8-2-1 | 0.0 | Surface | Mn nodule | Several | 2.0-3.0 cm | Siliceous clay | Small spheroidal granular nodules. Spheroidal/discoidal (2 to 3cm in diameter) with rough surface | |
| GH76-1-G175 | Station 411 | 7.9700 | -172.0098 | -5880 | 1976-01-29 | GH76-1-G175-1 | 0.0 | Surface | Mn nodule | Several | 0.7-2.0 cm | Core; clay | Clay | Large-small subspheroidal. Spheroidal (0.7 to 2cm in diameter) with rough surface nodules |
| GH76-1-FG9-1 | Station 411 | 7.9767 | -172.0098 | -5870 | 1976-01-29 | GH76-1-FG9-1-1 | 0.0 | Surface | Mn nodule | Several | Up to large | Core; clay | Clay | Large-small subspheroidal nodules |
| GH76-1-FG9-2 | Station 411 | 7.9750 | -172.0098 | -5860 | 1976-01-29 | GH76-1-FG9-2-1 | 0.0 | Surface | Mn nodule | Several | Up to large | Core; clay | Clay | Large-small subspheroidal nodules |
| GH76-1-G176 | Station 412 | 6.9950 | -172.0098 | -5950 | 1976-01-30 | GH76-1-G176-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; pumice | Siliceous clay | Small ellipsoidal discoidal granular nodules. |
| GH76-1-FG10-1 | Station 412 | 6.9950 | -172.0098 | -5950 | 1976-01-30 | GH76-1-FG10-1-1 | 0.0 | Surface | Mn nodule | Several | Small | Siliceous clay | Small ellipsoidal discoidal granular nodules. | |
| GH76-1-FG10-2 | Station 412 | 6.9933 | -172.0098 | -5940 | 1976-01-30 | GH76-1-FG10-2-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; pumice | Siliceous clay | Small ellipsoidal discoidal granular nodules. Discoidal/ellipsoidal (2 to 4cm in diameter) with a little rough surface |
| GH76-1-FG12-1 | Station 414 | 4.9933 | -173.0000 | -5430 | 1976-01-31 | GH76-1-FG12-1-1 | 0.0 | Surface | Mn nodule | Many | Up to large | Core; phospahtized sediments | Siliceous clay | Large-small, subspheroidal nodules; top smooth; bottom granular. Irregular ellipsoidal/mushroom (2 to 6cm in diameter) with smooth surface |
| GH76-1-FG12-2 | Station 414 | 4.9900 | -173.0000 | -5430 | 1976-01-31 | GH76-1-FG12-2-1 | 0.0 | Surface | Mn nodule | Many | Up to large | Core; phospahtized sediments | Siliceous clay | Large-small, subspheroidal nodules; top smooth; bottom granular. |
| GH76-1-G193 | Station 414A | 5.0017 | -173.0000 | -5280 | 1976-02-21 | GH76-1-G193-1 | 0.0 | Surface | Mn nodule | Many | Moderate | Core; phospahtized sediments | Siliceous clay | Moderate-small discoidal flattened nodules; smooth as a whole. |
| GH76-1-P67 | Station 414A-1 | 4.9900 | -172.9717 | -5380 | 1976-02-21 | GH76-1-P67-1 | 0.0 | Surface | Mn nodule | Several | Clay | Manganese nodules at the top. | ||
| GH76-1-P67 | Station 414A-1 | 4.9900 | -172.9717 | -5380 | 1976-02-21 | GH76-1-P67-2 | 3.0 | Buried | P2O5 nodule | Several | Clay | 539 cm clay core, with phosphorite concretions at the middle | ||
| GH76-1-FG25-1 | Station 414A-2 | 4.9900 | -172.9717 | -5470 | 1976-02-21 | GH76-1-FG25-1-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; manganese oxide particle, small fossils | Clay | Small spheroidal gritty nodules. |
| GH76-1-FG25-2 | Station 414A-2 | 4.9900 | -172.9717 | -5470 | 1976-02-21 | GH76-1-FG25-2-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; manganese oxide particle, small fossils | Clay | Small spheroidal gritty nodules. |
| GH76-1-G181 | Station 417 | 7.0233 | -171.9950 | -5660 | 1976-02-01 | GH76-1-G181-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; clay | Clay | Small ellipsoidal-spheroidal granular nodules. |
| GH76-1-FG15-1 | Station 417 | 7.0267 | -171.9933 | -5670 | 1976-02-01 | GH76-1-FG15-1-1 | 0.0 | Surface | Mn nodule | Few | Small | Core; phosphatized sediments, otolith | Clay | Small ellipsoidal-spheroidal granular nodules. |
| GH76-1-FG15-2 | Station 417 | 7.0233 | -171.9950 | -5670 | 1976-02-01 | GH76-1-FG15-2-1 | 0.0 | Surface | Mn nodule | Few | Small | Core; nodule fragments | Clay | Small ellipsoidal-spheroidal granular nodules. |
| GH76-1-G182 | Station 418 | 7.9933 | -172.0050 | -5600 | 1976-02-02 | GH76-1-G182-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; clay, nodule fragments, phosphatized sediments, nodule fragments | Clay | Small ellipsoidal-spheroidal granular nodules. |
| GH76-1-FG16-1 | Station 418 | 7.9917 | -172.0017 | -5590 | 1976-02-02 | GH76-1-FG16-1-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; clay, nodule fragments, phosphatized sediments, nodule fragments | Clay | Small ellipsoidal-spheroidal granular nodules. |
| GH76-1-FG16-2 | Station 418 | 7.9950 | -172.0017 | -5590 | 1976-02-02 | GH76-1-FG16-2-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; clay, nodule fragments, phosphatized sediments, nodule fragments | Clay | Small ellipsoidal-spheroidal granular nodules. |
| GH76-1-G183 | Station 419 | 9.0117 | -172.0100 | -5510 | 1976-02-02 | GH76-1-G183-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; phosphatized sediments, nodule fragments | Clay | Small spheroidal nodules; largely granular, except smooth top-most surface. |
| GH76-1-FG17-1 | Station 419 | 9.0050 | -172.0050 | -5520 | 1976-02-02 | GH76-1-FG17-1-1 | 0.0 | Surface | Mn nodule | Many | Small | Core; phosphatized sediments, nodule fragments | Clay | Small spheroidal nodules; largely granular, except smooth top-most surface. |
| GH76-1-FG17-2 | Station 419 | 9.0067 | -172.0033 | -5510 | 1976-02-02 | GH76-1-FG17-2-1 | 0.0 | Surface | Mn nodule | Many | Small | Core; phosphatized sediments, nodule fragments | Clay | Small spheroidal nodules; largely granular, except smooth top-most surface. |
| GH76-1-G184 | Station 420 | 9.9850 | -172.0150 | -5670 | 1976-02-03 | GH76-1-G184-1 | 0.0 | In sediment | Mn micronodule | Several | Siliceous clay | Micronodules. | ||
| GH76-1-G186 | Station 422 | 8.9217 | -170.9950 | -5110 | 1976-02-18 | GH76-1-G186-1 | 0.0 | Surface | Mn nodule | Few | Small | Siliceous clay | Small sub-spheroidal granular nodules. | |
| GH76-1-G187 | Station 423 | 7.9850 | -170.9983 | -5450 | 1976-02-18 | GH76-1-G187-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; phospahtized sediments | Clay | Small spheroidal granular-gritty nodules. |
| GH76-1-FG19-1 | Station 423 | 7.9983 | -171.0000 | -5410 | 1976-02-18 | GH76-1-FG19-1-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; oxides | Clay | Small spheroidal granular-gritty nodules. |
| GH76-1-FG19-2 | Station 423 | 7.9967 | -170.9933 | -5410 | 1976-02-18 | GH76-1-FG19-2-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; oxides, clay | Clay | Small spheroidal granular-gritty nodules. |
| GH76-1-G188 | Station 424 | 7.0183 | -171.0017 | -5790 | 1976-02-19 | GH76-1-G188-1 | 0.0 | Surface | Mn nodule | Few | Very small | Core; clay, oxides fragment | Siliceous clay | Very small spheroidal granular nodules. |
| GH76-1-FG20-2 | Station 424 | 7.0117 | -171.0000 | -5790 | 1976-02-19 | GH76-1-FG20-2-1 | 0.0 | Surface | Mn nodule | Several | Very small | Core; clay, oxides fragment | Siliceous clay | Very small spheroidal granular nodules. |
| GH76-1-G189 | Station 425 | 6.0183 | -171.0183 | -5530 | 1976-02-19 | GH76-1-G189-1 | 0.0 | Surface | Mn nodule | Few | Very small | Siliceous clay | Very small spheroidal granular nodules. | |
| GH76-1-FG21-1 | Station 425 | 6.0067 | -171.0050 | -5560 | 1976-02-19 | GH76-1-FG21-1-1 | 0.0 | Surface | Mn nodule | Few | Very small | Siliceous clay | Very small spheroidal granular nodules. | |
| GH76-1-FG21-2 | Station 425 | 6.0100 | -171.0050 | -5590 | 1976-02-19 | GH76-1-FG21-2-1 | 0.0 | Surface | Mn nodule | Few | Very small | Siliceous clay | Very small spheroidal granular nodules. | |
| GH76-1-G190 | Station 426 | 6.0033 | -169.9933 | -5430 | 1976-02-20 | GH76-1-G190-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; clay, oxides particles | Clay | Small spheroidal-ellipsoidal gritty nodules. |
| GH76-1-FG22-1 | Station 426 | 6.0000 | -169.9867 | -5640 | 1976-02-20 | GH76-1-FG22-1-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; clay, oxides particles | Clay | Small spheroidal-ellipsoidal gritty nodules |
| GH76-1-FG22-2 | Station 426 | 6.0000 | -169.9850 | -5640 | 1976-02-20 | GH76-1-FG22-2-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; clay, oxides particles | Clay | Small spheroidal-ellipsoidal gritty nodules. |
| GH76-1-G191 | Station 427 | 4.9850 | -170.0317 | -5640 | 1976-02-20 | GH76-1-G191-1 | 0.0 | Surface | Mn nodule | Few | Very small | Siliceous clay | Very small ellipsoidal granular nodules. | |
| GH76-1-FG23-1 | Station 427 | 4.9900 | -170.0167 | -5610 | 1976-02-20 | GH76-1-FG23-1-1 | 0.0 | Surface | Mn nodule | Few | Very small | Siliceous clay | Very small discoidal granular nodule. | |
| GH76-1-FG27-1 | Station 429 | 8.8483 | -173.9950 | -6270 | 1976-02-25 | GH76-1-FG27-1-1 | 0.0 | Surface | Mn nodule | Many | Moderate | Core; composite phosphatized and cherty sediments | Siliceous clay | Moderate-Small spheroidal flattened discoidal nodules; large smooth. |
| GH76-1-FG27-2 | Station 429 | 8.8533 | -173.9967 | -6280 | 1976-02-25 | GH76-1-FG27-2-1 | 0.0 | Surface | Mn nodule | Many | Moderate | Core; composite phosphatized and cherty sediments | Siliceous clay | Moderate-Small spheroidal flattened discoidal nodules; large smooth. |
| GH76-1-G195 | Station 430 | 9.9933 | -173.4983 | -5850 | 1976-02-27 | GH76-1-G195-1 | 0.0 | Surface | Mn nodule | Many | Core; phosphatized sediment particles | Clay | Many rather smooth nodules | |
| GH76-1-FG28-1 | Station 430 | 9.9967 | -173.4983 | -5850 | 1976-02-27 | GH76-1-FG28-1-1 | 0.0 | Surface | Mn nodule | Many | Core; phosphatized sediment particles | Clay | Many rather smooth nodules. | |
| GH76-1-FG28-2 | Station 430 | 9.9967 | -173.5000 | -5850 | 1976-02-27 | GH76-1-FG28-2-1 | 0.0 | Surface | Mn nodule | Many | Core; phosphatized sediment particles | Clay | Many rather smooth nodules. | |
| GH76-1-G196 | Station 431 | 9.4800 | -173.4983 | -5880 | 1976-02-27 | GH76-1-G196-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; clay, phosphatized sediment particles | Siliceous clay | Small spheroidal gritty nodules. |
| GH76-1-FG29-1 | Station 431 | 9.4867 | -173.4967 | -5870 | 1976-02-27 | GH76-1-FG29-1-1 | 0.0 | Surface | Mn nodule | Several | Small | Core; clay, phosphatized sediment particles | Siliceous clay | Small spheroidal gritty nodules. |
| GH76-1-FG29-2 | Station 431 | 9.4833 | -173.4983 | -5860 | 1976-02-27 | GH76-1-FG29-2-1 | 0.0 | Surface | Mn nodule | Large | Large | Core; clay, phosphatized sediment particles | Siliceous clay | Large hamburger type nodule included. |
| GH76-1-FG30-1 | Station 432 | 9.0067 | -173.5067 | -5960 | 1976-02-28 | GH76-1-FG30-1-1 | 0.0 | Surface | Mn nodule | Several | Small | Siliceous clay | Small subspheroidal-subdiscoidal gritty nodules. | |
| GH76-1-FG30-2 | Station 432 | 9.0050 | -173.5067 | -5960 | 1976-02-28 | GH76-1-FG30-2-1 | 0.0 | Surface | Mn nodule | Several | Small | Siliceous clay | Small subspheroidal-subdiscoidal gritty nodules. | |
| GH76-1-FG31-1 | Station 433 | 9.5083 | -174.0383 | -5950 | 1976-02-28 | GH76-1-FG31-1-1 | 0.0 | Surface | Mn nodule | Several | Moderate | Core; phosphatized sediment particles, fossils | Siliceous clay | Moderate-small gritty nodules. |
| GH76-1-FG31-2 | Station 433 | 9.5083 | -174.0383 | -5950 | 1976-02-28 | GH76-1-FG31-2-1 | 0.0 | Surface | Mn nodule | Several | Moderate | Core; phosphatized sediment particles, fossils | Siliceous clay | Moderate-small gritty nodules. |
| GH76-1-G194 | Station 406A | 8.0000 | -173.9833 | -5990 | 1976-02-24 | GH76-1-G194-1 | 0.0 | Surface | Mn nodule | Few | Clay | |||
| GH76-1-C8(N) | Station 407A | 8.9883 | -174.0000 | -5850 | 1976-02-26 | GH76-1-C8(N)-1 | 0.0 | Surface | Mn nodule | Many | ||||
| GH76-1-C6 | Station 414A-3 | 4.9850 | -172.9833 | -5410 | 1976-02-22 | GH76-1-C6-1 | 0.0 | Surface | Mn nodule | Several | ||||
| GH76-1-G185-1 | Station 421 | 9.9883 | -171.0167 | -4385 | 1976-02-17 | GH76-1-G185-1-1 | 0.0 | Surface | Mn crust | Few | Calcareous ooze | |||
| GH76-1-P72 | Station 429 | 8.8567 | -174.0067 | -6310 | 1976-02-25 | GH76-1-P72-1 | 0.0 | Surface | Mn nodule | Few | Clay |