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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-21 10:46:00 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -13.4097 Longitude: 153.9988 Position from underway logging |
| Sample number: | in2019_v04_D33-031 |
| Dredge: | D33 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | black | brown | yellow |
| Composition: | sedimentary |
| Alteration: | Mn crust | altered |
| Grain size: | cobble (>64 mm) |
| Grain shape: | rounded |
| Sorting: | moderate |
| Components: | other |
| Sample bagged: | yes |
| Bucket number: | 48 |
| Rock name: | Manganese nodule with core of clay and detrital volcaniclastic grains |
| Comments: | Mn crust 15 mm thick. Core of clay surrounded by thick Mn crust - some clear elongate crystals within the clay, possible plag laths - a few white mica crystals - and some shiny black minerals concentrated close to the Mn crust, cubic in shape, unsure of, maybe pyroxene? |