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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-23 21:35:21 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -10.2238 Longitude: 157.2987 Position from underway logging |
| Sample number: | in2019_v04_D36-028 |
| Dredge: | D36 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | black | grey-light | white |
| Composition: | mafic |
| Alteration: | Mn crust | altered |
| Phenocryst mineralogy: | feldspar | pyroxene |
| Phenocryst abundance (%): | 30 |
| Phenocryst size range (mm): | 0-3 |
| Groundmass: | altered |
| Vesicle abundance: | 10-30% |
| Vesicle Filling (%): | 10 |
| Vesicle fill: | zeolite? |
| Sample bagged: | yes |
| Bucket number: | 61 |
| Rock name: | Altered feldspar - Pyroxene phyric basalt |
| Comments: | Large vesicles filled with zeolite? Interlocking crystals. Altered pyroxene + feldspar |