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: | 2019-08-19 20:14:07 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -14.0557 Longitude: 155.548 Position from underway logging |
| Sample number: | in2019_v04_D30_006 |
| Dredge: | D30 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | white | brown |
| Composition: | mafic |
| Phenocryst mineralogy: | feldspar | altered |
| Phenocryst abundance (%): | 50 |
| Phenocryst size range (mm): | 1 |
| Groundmass: | microcrystaline |
| Vesicle abundance: | 10-30% |
| Vesicle Filling (%): | 80 |
| Vesicle fill: | calcite |
| Alteration: | Mn crust | altered |
| Sample bagged: | yes |
| Bucket number: | 41 |
| Rock name: | Trachyte/altered basalt |
| Comments: | Mn-crust 20 - 40 mm, vesicles surrounded by dark rim. Blueish-brown filling at some part soft so fingernail can scratch it, some parts to hard to scretch. |