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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-29 09:50:52 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -17.6909 Longitude: 158.3779 Position from underway logging |
| Sample number: | in2019_v04_D49-003 |
| Dredge: | D49 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 4 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | grey-dark |
| Composition: | mafic |
| Alteration: | Fresh | Mn crust |
| Phenocryst mineralogy: | feldspar | olivine[iddingsite] | pyroxene |
| Phenocryst abundance (%): | 30 |
| Phenocryst size range (mm): | 3 |
| Groundmass: | crystalline |
| Vesicle abundance: | 10-30% |
| Vesicle Filling (%): | 0 |
| Sample bagged: | yes |
| Bucket number: | 87 |
| Rock name: | Fresh feldspar-phyric basalt |
| Comments: | 1mm Mn Crust thickness. Large feldspar phenoocrysts (3mm). Visible olivine (idingsite grains) |