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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-19 20:22:01 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -14.0367 Longitude: 155.5289 Position from underway logging |
| Sample number: | in2019_v04_D30_010 |
| Dredge: | D30 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | grey-dark |
| Composition: | mafic |
| Alteration: | Mn crust |
| Phenocryst abundance (%): | 20 |
| Phenocryst size range (mm): | 1-3 |
| Vesicle abundance: | 10-30% |
| Vesicle Filling (%): | 100 |
| Vesicle fill: | zeolite |
| Sample bagged: | yes |
| Bucket number: | 41 |
| Rock name: | Zeolite-filled vesicular intermediate trachite/basalt |
| Comments: | Mn-crust - 20 mm, intermediate/mafic trachite surrounded by 20 mm of Mn crust, 2 generations of vesicle infill with zeolite and manganese. |