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: | 2019-08-11 02:48:30 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -20.7286 Longitude: 155.9888 Position from underway logging |
| Sample number: | in2019_v04_D06_003 |
| Dredge: | D06 |
| Dredge Date: | 11/08/19 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 7 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | grey-dark | red | brown |
| Composition: | mafic |
| Phenocryst mineralogy: | olivine[iddingsite] | glass[fresh] |
| Phenocryst abundance (%): | 20 |
| Phenocryst size range (mm): | 1-3 |
| Groundmass: | altered |
| Features: | volcanic brecciated |
| Vesicle abundance: | <10% |
| Vesicle Filling (%): | 30 |
| Vesicle fill: | calcite |
| Alteration: | Mn crust |
| Grain size: | pebble (2-64 mm) |
| Grain shape: | angular |
| Sorting: | poor |
| Components: | glass | volcanic vesicular |
| Cement: | calcite |
| Sample bagged: | yes |
| Bucket number: | 13 |
| Rock name: | clast supported olivine pheric basalt and glass breccia |
| Comments: | Mn crust 1 mm, carbonate cement come in two colours brown and grey, mineralogy section describes the volcanic clasts, polymict (mafic/basalt , altered glass) |