Shipboard Scientific Party (1975): Annotated record of the detailed examination of Mn deposits from R/V Oceanographer Cruise RP-8-OC-75 in the DOMES, Site A, B and C areas [dataset]. U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California, PANGAEA, https://doi.org/10.1594/PANGAEA.877305
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Submarine photography and box cores described in this report were taken during the R/V Oceanographer Cruise RP-8-OC-75 in October-November 1975 over areas A, B and C of the DOMES project (Deep Ocean Mining Environmental Study). This cruise was part of Phase I of the DOMES project which was conducted by the U.S. Geological Survey under the auspices of the National Oceanic and Atmospheric Administration (NOAA). The purpose of DOMES project was to acquire the information necessary to provide both a timely and an independent assessment of the impact of deep ocean manganese nodule mining on the marine ecosystem before commercial mining operations begin. It was formulated in cooperation with the academic community and the mining industry. It consisted of a two-phase study, first to obtain basic information on the deep ocean environment and then to assess the impact of prototype mining operations on that environment.
Related to:
Shipboard Scientific Party (1975): Descriptions of cores and submarine photography for the R/V Oceanographer Cruise RP8-OC-75. U.S. Geological Survey, unpublished report; https://walrus.wr.usgs.gov/infobank/o/o175np/html/o-1-75-np.container.html, 60 pp (pdf 12.4 MB), https://www.ngdc.noaa.gov/mgg/curator/data/oceanographer/rp8-oc75/03045002.pdf
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: 10.425839 * Median Longitude: -144.322369 * South-bound Latitude: 8.238300 * West-bound Longitude: -151.238300 * North-bound Latitude: 15.343000 * East-bound Longitude: -125.447000
Date/Time Start: 1975-10-24T00:00:00 * Date/Time End: 1975-11-13T00:00:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 0.30 m
Event(s):
RP8OC75-46-01 * Latitude: 9.345000 * Longitude: -150.845000 * Date/Time: 1975-10-24T00:00:00 * Elevation: -5057.0 m * Recovery: 0.4826 m * Location: DOMES Site A, Pacific Ocean * Campaign: RP8OC7503 (RP-8-OC-75) * Basis: Oceanographer * Method/Device: Box corer (BC)
RP8OC75-46-1C * Latitude: 9.316667 * Longitude: -150.863333 * Date/Time: 1975-10-24T00:00:00 * Elevation: -5000.0 m * Location: DOMES Site A, Pacific Ocean * Campaign: RP8OC7503 (RP-8-OC-75) * Basis: Oceanographer * 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 | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | Method/Device of event | Method/Device | ||||
| 6 | Identification | ID | ||||
| 7 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 8 | Depth, top/min | Depth top | m | |||
| 9 | Depth, bottom/max | Depth bot | m | |||
| 10 | Position | Position | Visual description | |||
| 11 | Deposit type | Deposit type | ||||
| 12 | Quantity of deposit | Quantity | ||||
| 13 | Size | Size | ||||
| 14 | Substrate type | Substrate | ||||
| 15 | Sediment type | Sediment | ||||
| 16 | Comment | Comment | ||||
| 17 | Description | Description | ||||
| 18 | File name | File name | ||||
| 19 | Uniform resource locator/link to image | URL image |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
728 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 | 18 File name | 19 URL image |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RP8OC75-46-01 | 9.345 | -150.845 | -5057 | Box corer | RP8OC75-46-01-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | 2.5 cm | Clay | Color, chocolate brown, very soupy, several, shark teeth, one approx. 8.0 cm length. | Lots of small Mn nodules less than 2.5 cm. | |||
| RP8OC75-46-02 | 9.355 | -150.825 | -5086 | Box corer | RP8OC75-46-02-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Small | Clay | Core soupy on top, color chocolate brown. | Some small Mn nodules, filled container. | |||
| RP8OC75-46-03 | 9.317 | -150.875 | -4900 | Box corer | RP8OC75-46-03-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Clay | Mn nodules | |||||
| RP8OC75-46-04 | 9.397 | -150.880 | -4909 | Box corer | RP8OC75-46-04-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | 2.5-3.0 cm | Clay | Brown chocolate color, looked very gritty. Lots of speckles of lighter color. | 75% of box covered with small Mn nodules, 2.5-3.0 cm diameter. | |||
| RP8OC75-46-05 | 9.355 | -150.857 | -4999 | Box corer | RP8OC75-46-05-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 2 | Small | Clay | Material was very hard and very cohesive, broke into chunks. Color was very dark, lots of worm tubes. | Only one or two small Mn nodules on top. | |||
| RP8OC75-46-06 | 9.400 | -150.832 | -5121 | Box corer | RP8OC75-46-06-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Small | Clay | Light colored clay | Several small Mn nodules on top. | |||
| RP8OC75-46-07 | 9.327 | -150.845 | -5012 | Box corer | RP8OC75-46-07-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Clay | Bottom sediment was very stiff and brittle like. | Mn nodules (6 kg/m2) at surface. | ||||
| RP8OC75-46-07 | 9.327 | -150.845 | -5012 | Box corer | RP8OC75-46-07-2 | Buried | Mn nodule | Several | Clay | Bottom sediment was very stiff and brittle like. | Mn nodules (6 kg/m2) also buried. | |||||||
| RP8OC75-46-08 | 9.318 | -150.840 | -5108 | Box corer | RP8OC75-46-08-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Clay | Mn nodules | |||||
| RP8OC75-46-09 | 9.333 | -150.807 | -4745 | Box corer | RP8OC75-46-09-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | 4.0-8.0 cm | Clay | Color, chocolate brown | Lots of small Mn nodules 4.0-5.0 cm, 3 Mn nodules greater than 5.0 cm. | |||
| RP8OC75-47-10 | 9.005 | -151.182 | -5005 | Box corer | RP8OC75-47-10-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 2 | Clay | Material was very soupy and soft, core tubes went in real easy. Color chocolate brown | Only a couple Mn nodules noted. Pictures showed they had very few Mn nodules. | ||||
| RP8OC75-47-11 | 9.042 | -151.177 | -4951 | Box corer | RP8OC75-47-11-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 5 | Large | Clay | Material was a dark brown, very soupy | About 5 large Mn nodules present. | |||
| RP8OC75-47-12 | 9.058 | -151.185 | -4907 | Box corer | RP8OC75-47-12-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Large | Clay | Soupy on top. | Box had several large Mn nodules of outside surface which is rough. Mn nodules (5 kg/m2) at surface. | |||
| RP8OC75-47-12 | 9.058 | -151.185 | -4907 | Box corer | RP8OC75-47-12-2 | Buried | Mn nodule | Several | Clay | Stiff starting at 8.0 cm. | Mn nodules (5 kg/m2) also buried. | |||||||
| RP8OC75-47-13 | 9.038 | -151.187 | -4938 | Box corer | RP8OC75-47-13-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | 4.0-8.0 cm | Clay | Soupy appearance on top, becomes stiff very quickly. | Some large (4.0-8.0 cm) Mn nodules, rough surface type. Mn nodules (2 kg/m2) at surface. | |||
| RP8OC75-47-13 | 9.038 | -151.187 | -4938 | Box corer | RP8OC75-47-13-2 | Buried | Mn nodule | Several | Clay | Becomes stiff very quickly. | Mn nodules (2 kg/m2) also buried. | |||||||
| RP8OC75-47-14 | 9.067 | -151.237 | -5007 | Box corer | RP8OC75-47-14-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Large | Clay | Color light chocolate brown, surface of core looked very even and undisturbed, soupy appearance. | Several large Mn nodules present. | |||
| RP8OC75-47-15 | 9.080 | -151.185 | -5012 | Box corer | RP8OC75-47-15-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Up to 5.5 cm | Clay | Color light chocolate brown. Appearance, very soupy on the surface. Color changes from light to dark at 5.0 cm down. | Several large Mn nodules present. | RP8OC75_47-15.jpg | RP8OC75_47-15.jpg | |
| RP8OC75-47-16 | 9.038 | -151.190 | -4948 | Box corer | RP8OC75-47-16-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Clay | Mn nodules | |||||
| RP8OC75-47-18 | 9.080 | -151.157 | -5025 | Box corer | RP8OC75-47-18-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 38 | 2.0 cm | Clay | Surface not as soupy looking as others, color light chocolate brown. | Lots of smaller smooth type of Mn nodules average size 2.0 cm. Some buried under thin sediment cover | RP8OC75_47-18.jpg | RP8OC75_47-18.jpg | |
| RP8OC75-48-19 | 8.275 | -151.122 | -4942 | Box corer | RP8OC75-48-19-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | 2.5-4.0 cm | Clay | Color, light chocolate brown. Surface texture appearance, soft, soupy and granular in places. Lots of radiolarians in sediment. | Some Mn nodules (2.5-4.0 cm) present. | |||
| RP8OC75-48-20 | 8.238 | -151.238 | -4942 | Box corer | RP8OC75-48-20-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 50 | 2.5-4.0 cm | Clay | Surface texture, soft but not soupy, color light chocolate brown. | Lots of small Mn nodules (2.5-4.0 cm). Nodules are smooth type. | RP8OC75_48-20.jpg | RP8OC75_48-20.jpg | |
| RP8OC75-48-21 | 8.293 | -151.220 | -5097 | Box corer | RP8OC75-48-21-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Few | Clay | Mn nodules (1 kg/m2) | |||||
| RP8OC75-48-22 | 8.267 | -151.188 | -5014 | Box corer | RP8OC75-48-22-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 1 | 8.0 cm | Clay | Surface texture, very uniform, soupy-soft, color light chocolate brown. | One large knobby Mn nodule, 8.0 cm. | |||
| RP8OC75-48-23 | 8.302 | -151.158 | -5040 | Box corer | RP8OC75-48-23-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 10 | 5.0 cm | Clay | Surface of core was soupy-soft. Color, light chocolate brown. | Several average size Mn nodules, some naturally broken | RP8OC75_48-23.jpg | RP8OC75_48-23.jpg | |
| RP8OC75-48-24 | 8.458 | -150.778 | -4927 | Box corer | RP8OC75-48-24-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 2 | Clay | Surface texture, soft but not soupy. Material looked crumbly and gritty. Color light chocolate brown. | One or 2 Mn nodules in box. | ||||
| RP8OC75-49-25 | 8.475 | -150.742 | -4905 | Box corer | RP8OC75-49-25-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | 4.0-8.0 cm | Clay | Surface texture, soft but firm. Color of sediment, light chocolate brown. | Lots of Mn nodules 4.0-8.0 cm size, smooth surface. | |||
| RP8OC75-49-26 | 8.457 | -150.837 | -4872 | Box corer | RP8OC75-49-26-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | Clay | Material looked soft but firm. Color, light chocolate brown. | Lots of Mn nodules | ||||
| RP8OC75-49-27 | 8.503 | -150.797 | -4938 | Box corer | RP8OC75-49-27-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | Clay | Color, chocolate brown. | Lots of Mn nodules on surface. | ||||
| RP8OC75-50-28 | 8.695 | -150.312 | -4909 | Box corer | RP8OC75-50-28-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 100 | 1.0-2.5 cm | Clay | Surface material, light chocolate brown soft but firm (forams). | Lots of Mn nodules on surface. | RP8OC75_50-28.jpg | RP8OC75_50-28.jpg | |
| RP8OC75-50-28 | 8.695 | -150.312 | -4909 | Box corer | RP8OC75-50-28-2 | 0.30 | 0.20 | 0.40 | Buried | Mn nodule | Many | Clay | Half way down the core hit a very light brown layer of forams. | Lots of buried nodules in interval 20-40 cm | ||||
| RP8OC75-50-29 | 8.730 | -150.312 | -4933 | Box corer | RP8OC75-50-29-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | Small | Clay | Sediment was very similar to previous core. Sediment soft but firm, color light chocolate brown. | Lots of small Mn nodules on surface. | |||
| RP8OC75-50-30 | 8.685 | -150.252 | -4831 | Box corer | RP8OC75-50-30-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | Clay | Surface material soft, but firm (forams) Color, light chocolate brown. | |||||
| RP8OC75-50-30 | 8.685 | -150.252 | -4831 | Box corer | RP8OC75-50-30-2 | Buried | Mn nodule | Several | Clay | Firm (forams) Color, light chocolate brown. | Mn nodules (6 kg/m2) also buried. | |||||||
| RP8OC75-50-31 | 8.690 | -150.250 | -4870 | Box corer | RP8OC75-50-31-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Large | Clay | Surface sediment looked very different crumbly type, brown and very light brown shades, soft but firm. Light brown sediment was filled with forams. | Some large Mn nodules on the surface odd shapes, slab like. | |||
| RP8OC75-50-32 | 8.718 | -150.235 | -4852 | Box corer | RP8OC75-50-32-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | 1.0-2.5 cm | Clay | Surface texture, soft but firm. Color, light chocolate brown. | Medium quantity of small Mn nodules 1.0-2.5 cm size. | |||
| RP8OC75-51-33 | 11.693 | -139.183 | -4785 | Box corer | RP8OC75-51-33-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Large | Clay | Surface material was firm, color darker. Chocolate brown, sediment was gritty like. | Some large Mn nodules on surface. | |||
| RP8OC75-51-34 | 11.707 | -139.180 | -4828 | Box corer | RP8OC75-51-34-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Up to 10.0 cm | Clay | Surface sediment, soft but firm. Color light chocolate brown. | Several large and medium sized Mn nodules on surface. Mn nodule surface is gritty from small botryoids | RP8OC75_51-34.jpg | RP8OC75_51-34.jpg | |
| RP8OC75-51-35 | 11.718 | -139.148 | -4817 | Box corer | RP8OC75-51-35-1 | Buried | Mn nodule | Several | Clay | Surface material, very soft-soupy. Color, chocolate brown. | No nodules visible on the surface, only buried | |||||||
| RP8OC75-51-36 | 11.728 | -139.137 | -4817 | Box corer | RP8OC75-51-36-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 6 | Small | Clay | Surface soft but maintained form, color, chocolate brown. | Very few small Mn nodules (6) at surface. | |||
| RP8OC75-51-36 | 11.728 | -139.137 | -4817 | Box corer | RP8OC75-51-36-2 | Buried | Mn nodule | Several | Clay | Chocolate brown. | Mn nodules also buried. | |||||||
| RP8OC75-52-37 | 11.228 | -139.165 | -4778 | Box corer | RP8OC75-52-37-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 1 | Small | Clay | Color, light chocolate brown, gritty. | One small Mn nodule of type B at surface. | |||
| RP8OC75-52-37 | 11.228 | -139.165 | -4778 | Box corer | RP8OC75-52-37-2 | Buried | Mn nodule | Several | Clay | Light chocolate brown, gritty. | Mn nodules also buried. | |||||||
| RP8OC75-52-38 | 11.248 | -139.090 | -4835 | Box corer | RP8OC75-52-38-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 3 | 1.0-2.5 cm | Clay | Surface sediment firm appearance, lots of worm burrows. Color mottled. 2 or 3 small Mn nodules at surface, 1.0-2.5 cm, B type. | ||||
| RP8OC75-52-38 | 11.248 | -139.090 | -4835 | Box corer | RP8OC75-52-38-2 | Buried | Mn nodule | Several | Clay | Lots of worm burrows. Color mottled. | Mn nodules also buried. | |||||||
| RP8OC75-52-39 | 11.248 | -139.090 | -4831 | Box corer | RP8OC75-52-39-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 5 | Clay | 5 Large (10.0-15.0 cm), B Type Mn nodules | |||||
| RP8OC75-52-40 | 11.272 | -139.070 | -4765 | Box corer | RP8OC75-52-40-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 2 | Large | Clay | Surface sediment soft but firm. Color light chocolate brown. | 2 large Mn nodules on the surface. | |||
| RP8OC75-52-41 | 11.225 | -139.128 | -4756 | Box corer | RP8OC75-52-41-1 | 0.25 | 0.25 | 0.25 | Buried | Mn nodule | 1 | Large | Clay | Surface sediment soft but firm. Color light chocolate brown. | No nodules on surface. 1 large Mn nodule found buried halfway down core, B type. | |||
| RP8OC75-53-44 | 11.722 | -138.373 | -4902 | Box corer | RP8OC75-53-44-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 1 | Small | Clay | Surface sediment, soft but firm, gritty. Color, light chocolate brown. | One small Mn nodule at surface. | |||
| RP8OC75-53-44 | 11.722 | -138.373 | -4902 | Box corer | RP8OC75-53-44-2 | Buried | Mn nodule | Several | Clay | Color, light chocolate brown. | Mn nodules also buried. | |||||||
| RP8OC75-53-45 | 11.732 | -138.370 | -4887 | Box corer | RP8OC75-53-45-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 2 | Large | Clay | Surface sediment, soft, semi firm. Color, chocolate brown. | 2 large Mn nodules, B type. | |||
| RP8OC75-53-46 | 11.738 | -138.353 | -4833 | Box corer | RP8OC75-53-46-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Clay | Surface sediment soft. Color, light chocolate brown. | Mn nodules. | ||||
| RP8OC75-54-47 | 12.173 | -137.735 | -4833 | Box corer | RP8OC75-54-47-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | 1.0-50 cm | Clay | Sediment, soft but firm. Color, chocolate brown. | Lots of Mn nodules on the surface (14 kg/m2). Mn nodule surface is gritty from small botryoids. Large variety of sizes | RP8OC75_54-47.jpg | RP8OC75_54-47.jpg | |
| RP8OC75-54-47 | 12.173 | -137.735 | -4833 | Box corer | RP8OC75-54-47-2 | Buried | Mn nodule | Several | Clay | Sediment, soft but firm. Color, chocolate brown. | Mn nodules also buried. | |||||||
| RP8OC75-54-48 | 12.183 | -137.683 | -4833 | Box corer | RP8OC75-54-48-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | Clay | Sediment, soft but firm. Color, chocolate brown. | Lots of Mn nodules on the surface (11 kg/m2). | ||||
| RP8OC75-54-48 | 12.183 | -137.683 | -4833 | Box corer | RP8OC75-54-48-2 | Buried | Mn nodule | Several | Clay | Sediment, soft but firm. Color, chocolate brown. | Mn nodules also buried. | |||||||
| RP8OC75-54-49 | 12.200 | -137.745 | -4942 | Box corer | RP8OC75-54-49-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Clay | Mn nodules at surface. | |||||
| RP8OC75-54-49 | 12.200 | -137.745 | -4942 | Box corer | RP8OC75-54-49-2 | Buried | Mn nodule | Several | Clay | Mn nodules also buried. | ||||||||
| RP8OC75-54-50 | 12.142 | -137.767 | -4978 | Box corer | RP8OC75-54-50-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Clay | Mn nodules at surface (3 kg/m2). | |||||
| RP8OC75-54-50 | 12.142 | -137.767 | -4978 | Box corer | RP8OC75-54-50-2 | Buried | Mn nodule | Several | Clay | Mn nodules also buried. | ||||||||
| RP8OC75-54-51 | 12.148 | -137.743 | -4837 | Box corer | RP8OC75-54-51-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | Clay | Sediment soft but firm. Color, chocolate brown. | Surface filled with Mn nodules. | ||||
| RP8OC75-54-52 | 12.160 | -137.707 | -4855 | Box corer | RP8OC75-54-52-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | Clay | Surface sediment soft-firm. Color, chocolate brown. | Many Mn nodules on surface. | ||||
| RP8OC75-55-53 | 11.810 | -137.472 | -4765 | Box corer | RP8OC75-55-53-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | 0.5-1.0 cm | Clay | Surface sediment looked in good condition soft-firm; color chocolate brown. | Some very small Mn nodules 0.5-1.0 cm size varied shapes, long-narrow. | |||
| RP8OC75-55-54 | 11.847 | -137.445 | -4737 | Box corer | RP8OC75-55-54-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Large | Clay | Sediment soft-firm. Color, chocolate brown. | Several large Mn nodules. | |||
| RP8OC75-55-55 | 11.803 | -137.438 | -4759 | Box corer | RP8OC75-55-55-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | 4.0 cm | Clay | Sediment soft, but maintaining shape. Color, chocolate brown, gritty appearance. | Lots of Mn nodules. Mn nodule surface is gritty from small botryoids. | RP8OC75_55-55.jpg | RP8OC75_55-55.jpg | |
| RP8OC75-55-56 | 11.810 | -137.405 | -4800 | Box corer | RP8OC75-55-56-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | Up to 6.0 cm | Clay | Sediment soft-firm. Color chocolate brown. | Lots of Mn nodules on surface. Mn nodule surface is gritty from small botryoids. | RP8OC75_55-56.jpg | RP8OC75_55-56.jpg | |
| RP8OC75-57-57 | 15.297 | -125.922 | -4438 | Box corer | RP8OC75-57-57-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | 2.5 cm | Clay | Sediment soft but firm, color dark or redish brown, very uniform color and very homogeneous throughout the core. | Lots of small (2.5 cm) smooth Mn nodules. | RP8OC75_57-57.jpg | RP8OC75_57-57.jpg | |
| RP8OC75-57-58 | 15.327 | -125.907 | -4551 | Box corer | RP8OC75-57-58-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | 19 | 2.5-7.0 cm | Clay | Surface sediment soft but firm dark-reddish chocolate brown, a little gritty in appearance. | Approx 19 Mn nodules about half of them 2.5-5.0 cm, the other half 5.0-7.0 cm inches. | |||
| RP8OC75-58-60 | 15.297 | -125.473 | -4298 | Box corer | RP8OC75-58-60-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | 1.0-2.6 cm | Clay | Sediment looked soft but firm. Color, dark chocolate brown. | Surface of sediment filled with small 1.0-2.6 cm smooth type Mn nodules. | RP8OC75_58-60.jpg | RP8OC75_58-60.jpg | |
| RP8OC75-58-61 | 15.343 | -125.447 | -4414 | Box corer | RP8OC75-58-61 -1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Hard ground | Lots of basaltic rocks. | Mn nodules at surface. | ||||
| RP8OC75-46-1C | 9.317 | -150.863 | -5000 | Photo/Video | RP8OC75-46-1C-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | Clay | Dense cover of Mn nodules with frequent zones of sediment surface bioturbation | domes_rp8oc75-3_cam-1_1.jpg | domes_rp8oc75-3_cam-1_1.jpg | |||
| RP8OC75-46-1C | 9.317 | -150.863 | -5000 | Photo/Video | RP8OC75-46-1C-2 | 0.00 | 0.00 | 0.00 | Surface | Mn coating | Several | Rock, pebble | Some areas show scattered fragments, probably volcanics, coated with Mn. A cliff is also encountered | domes_rp8oc75-3_cam-1_2.jpg | domes_rp8oc75-3_cam-1_2.jpg | |||
| RP8OC75-47-2C | 9.027 | -151.203 | -5080 | Photo/Video | RP8OC75-47-2C-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Rather scattered Mn nodules laying over thick sediment cover | domes_rp8oc75-3_cam-2.jpg | domes_rp8oc75-3_cam-2.jpg | ||||
| RP8OC75-48-3C | 8.267 | -151.180 | -5088 | Photo/Video | RP8OC75-48-3C-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | Dense cover of Mn nodules with some zones almost devoid of them | domes_rp8oc75-3_cam-3_1.jpg | domes_rp8oc75-3_cam-3_1.jpg | ||||
| RP8OC75-48-3C | 8.267 | -151.180 | -5088 | Photo/Video | RP8OC75-48-3C-2 | 0.00 | 0.00 | 0.00 | Surface | Mn coating | Several | Rock, pebble | Some areas show scattered fragments, probably volcanics, coated with Mn. | domes_rp8oc75-3_cam-3_2.jpg | domes_rp8oc75-3_cam-3_2.jpg | |||
| RP8OC75-52-4C | 11.257 | -139.153 | -4871 | Photo/Video | RP8OC75-52-4C-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Several | Rather scattered Mn nodules laying over thick sediment cover | domes_rp8oc75-3_cam-4.jpg | domes_rp8oc75-3_cam-4.jpg | ||||
| RP8OC75-53-5C | 11.675 | -138.432 | -4944 | Photo/Video | RP8OC75-53-5C-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Few | Area with thick sediment cover with extremely few small Mn nodules seen at the surface | domes_rp8oc75-3_cam-5.jpg | domes_rp8oc75-3_cam-5.jpg | ||||
| RP8OC75-54-6C | 12.145 | -137.757 | -5052 | Photo/Video | RP8OC75-54-6C-1 | 0.00 | 0.00 | 0.00 | Surface | Mn nodule | Many | Dense homogenous cover of Mn nodules | domes_rp8oc75-3_cam-6.jpg | domes_rp8oc75-3_cam-6.jpg |
