Please login if you have access to particular applications.
Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-14 03:10:01 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -17.4901 Longitude: 155.883 Position from underway logging |
| Sample number: | in2019_v04_D13_018 |
| Dredge: | D13 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | black | grey-dark | brown |
| Composition: | mafic |
| Phenocryst mineralogy: | feldspar | olivine[iddingsite] |
| Phenocryst abundance (%): | 10 |
| Phenocryst size range (mm): | 2 |
| Groundmass: | microcrystaline |
| Vesicle abundance: | absent |
| Alteration: | Mn crust | altered |
| Sample bagged: | yes |
| Bucket number: | 29 |
| Rock name: | Altered feldspar olivine phyric basalt |
| Requested: | UK |
| Comments: | Mn-crust <1 mm, variably altered feldspar in groundmass, altered pyroxene? |