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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-21 03:19:15 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -12.6508 Longitude: 153.6433 Position from underway logging |
| Sample number: | in2019_v04_D32_042 |
| Dredge: | D32 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | grey-light | yellow |
| Composition: | mafic |
| Phenocryst mineralogy: | feldspar | pyroxene | altered |
| Phenocryst abundance (%): | 25 |
| Phenocryst size range (mm): | 4 |
| Groundmass: | altered |
| Features: | volcanic brecciated |
| Vesicle abundance: | 10-30% |
| Vesicle Filling (%): | 5 |
| Alteration: | Mn crust | altered |
| Sample bagged: | yes |
| Bucket number: | 46 |
| Rock name: | Vesicular feldspar phyric intermediate breccia |
| Comments: | Mn - crust 15 mm, Mn oxide nodule, glassy texture due to volcanic glass and mica phenocryst. |