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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-26 11:39:48 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -14.1803 Longitude: 159.691 Position from underway logging |
| Sample number: | in2019_v04_D43-003 |
| Dredge: | D43 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 4 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | grey-light | brown |
| Composition: | mafic |
| Alteration: | altered |
| Phenocryst mineralogy: | feldspar | pyroxene |
| Phenocryst abundance (%): | 30 |
| Phenocryst size range (mm): | <0.5-2 |
| Groundmass: | microcrystaline |
| Vesicle abundance: | <10% |
| Vesicle Filling (%): | 30 |
| Vesicle fill: | Calcite and other? |
| Sample bagged: | yes |
| Bucket number: | 80 |
| Rock name: | Altered, vesicular, feldspar-phyric basalt |
| Comments: | Similar to -004, -005, -006. 11mm calcite vein between rock surface and Mn-crust. Mn crust thickness 5-15mm. Small px phenocrysts (<0.5mm) maybe? |