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Event details
| Voyage: | IN2018_V08 [details] |
| When: | 2018-12-29 06:18:14 UTC |
| Log: | Geology_Rocks_in2018_v08 |
| Equipment: | Not specified |
| Position: | Latitude: -39.8112 Longitude: 157.2957 Position from underway logging |
| Sample number: | IN2018_V08_D01_046 |
| Dredge: | 01 |
| Dredge Date: | 28/12/2018 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Sample sawn: | Yes |
| Sawn sample photographed: | Yes |
| Number of photos: | 3 |
| Colour: | brown |
| Composition: | felsic |
| Grain size: | pebble (2-64 mm) |
| Grain shape: | angular |
| Sorting: | moderate |
| Phenocryst mineralogy: | amphibole |
| Phenocryst abundance (%): | <1 |
| Groundmass: | altered |
| Vesicle abundance: | low (<30%) |
| Sample bagged: | yes |
| Sticker: | yes |
| Bucket number: | 008 |
| Rock name: | Monomictic trachytic hyaloclastite |
| Comments: | some clasts are volcanic non-vesicular and the groundmass is former glass |