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Event details
| Voyage: | IN2018_V08 [details] |
| When: | 2019-01-08 09:57:21 UTC |
| Log: | Geology_Rocks_in2018_v08 |
| Equipment: | Not specified |
| Position: | Latitude: -46.2285 Longitude: 150.3225 Position from underway logging |
| Sample number: | IN2018_V08_D16_042 |
| Dredge: | 16 |
| Dredge Date: | 08/01/2019 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Sample sawn: | Yes |
| Sawn sample photographed: | Yes |
| Number of photos: | 2 |
| Colour: | grey-dark | brown |
| Composition: | mafic |
| Alteration: | Mn crust | altered |
| Grain size: | sand and silt (<2 mm) | pebble (2-64 mm) |
| Grain shape: | mixture |
| Sorting: | poor |
| Components: | volcanic non-vesicular |
| Phenocryst mineralogy: | feldspar | pyroxene |
| Phenocryst abundance (%): | 5 |
| Phenocryst size range (mm): | 1-3 |
| Groundmass: | microcrystaline |
| Sample bagged: | yes |
| Sticker: | yes |
| Bucket number: | 056 |
| Rock name: | poorly sorted polymictic volcanic breccia |
| Comments: | 2-3 cm Mn crust |