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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-12 23:40:06 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -19.4347 Longitude: 155.1219 Position from underway logging |
| Sample number: | in2019_v04_D10_012 |
| Dredge: | D10 |
| Dredge Date: | 13/08/2019 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | grey-dark | red | yellow |
| Composition: | mafic |
| Phenocryst mineralogy: | feldspar | amphibole |
| Phenocryst abundance (%): | 10 |
| Phenocryst size range (mm): | 15 |
| Groundmass: | microcrystaline | altered |
| Features: | volcanic brecciated |
| Vesicle abundance: | 30-50% |
| Vesicle Filling (%): | 35 |
| Vesicle fill: | calcite |
| Alteration: | Mn crust |
| Sample bagged: | yes |
| Bucket number: | 20 |
| Rock name: | Olivine feldspar phyric vesicular basalt |
| Requested: | UK |
| Comments: | Phenocrysts of potentially fresh feldspar and altered olivine, vesicle filling with calcite |