Information: - Our applications will be disrupted from 2024-05-03 16:30 AEST to 2024-05-03 18:00 AEST Friday due to infrastructure upgrades. We apologize for any inconvenience and appreciate your patience during this maintenance window.
Please login if you have access to particular applications.
Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-14 02:34:13 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -17.4872 Longitude: 155.8793 Position from underway logging |
| Sample number: | in2019_v04_D13_004 |
| Dredge: | D13 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 2 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | brown |
| Composition: | mafic |
| Phenocryst mineralogy: | feldspar | olivine[iddingsite] |
| Phenocryst abundance (%): | 40 |
| Phenocryst size range (mm): | ~0.5 |
| Groundmass: | glassy | microcrystaline |
| Vesicle abundance: | <10% |
| Vesicle Filling (%): | 100 |
| Vesicle fill: | Iron oxide |
| Alteration: | Mn crust | altered |
| Sample bagged: | yes |
| Bucket number: | 26 |
| Rock name: | Altered basalt |
| Comments: | Mn-cust ~0.5 mm, milky green alteration, white plagioclase ~25% in groundmass, red-brown iddingsite crystals (0.5 mm) and ~2% |