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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-19 12:09:35 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -14.4592 Longitude: 155.8641 Position from underway logging |
| Sample number: | in2019_v04_D29_004 |
| Dredge: | D29 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | black | red | brown |
| Composition: | mafic |
| Phenocryst mineralogy: | feldspar |
| Phenocryst abundance (%): | 1 |
| Phenocryst size range (mm): | 1 |
| Vesicle abundance: | <10% |
| Vesicle Filling (%): | 0 |
| Vesicle fill: | clay |
| Alteration: | Mn crust |
| Sample bagged: | yes |
| Bucket number: | 37 |
| Rock name: | Mainly dominated Mn-crust with a few basalt pebbles |
| Comments: | Mn-oxide crust is very thick. Tiny altered basalt clasts. |