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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-21 10:59:36 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -13.3992 Longitude: 154.0384 Position from underway logging |
| Sample number: | in2019_v04_D33-008 |
| 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 | grey-dark | red | brown |
| Composition: | mafic |
| Alteration: | Mn crust | altered |
| Phenocryst mineralogy: | other |
| Groundmass: | altered |
| Features: | other |
| Vesicle abundance: | absent |
| Grain shape: | angular |
| Components: | volcanic non-vesicular |
| Sample bagged: | yes |
| Bucket number: | 48 |
| Rock name: | Red altered volcanic rock in manganese nodule |
| Comments: | Mn crust 20 mm thick. Veins are present - filled with zeolite - alteration varies within the pebble - dark brown and dark red parts |