Please login if you have access to particular applications.
Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-19 21:01:35 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -13.9178 Longitude: 155.5239 Position from underway logging |
| Sample number: | in2019_v04_D30_021 |
| Dredge: | D30 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 2 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | black | red |
| Composition: | mafic |
| Phenocryst mineralogy: | altered |
| Groundmass: | altered |
| Vesicle abundance: | 10-30% |
| Vesicle Filling (%): | 50 |
| Vesicle fill: | Clay |
| Alteration: | Mn crust | altered |
| Sample bagged: | yes |
| Bucket number: | 41 |
| Rock name: | Mn crust iron oxide altered vesicular basalt |
| Comments: | Majority Mn but small area (5mm thick) of red (fe-altered) basalt. Lots of tiny vesicles, calcite veins and Mn filled fractures. |