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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-23 21:09:38 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -10.2239 Longitude: 157.2985 Position from underway logging |
| Sample number: | in2019_v04_D36-024 |
| Dredge: | D36 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | grey-dark | brown | yellow | green |
| Composition: | sedimentary |
| Phenocryst mineralogy: | feldspar | pyroxene |
| Phenocryst abundance (%): | 50 |
| Phenocryst size range (mm): | 2 |
| Groundmass: | microcrystaline |
| Features: | volcanic brecciated |
| Vesicle abundance: | absent |
| Alteration: | Mn crust | altered |
| Grain size: | sand (<2 mm) | pebble (2-64 mm) |
| Grain shape: | angular |
| Sorting: | poor |
| Components: | volcanic non-vesicular |
| Sample bagged: | yes |
| Bucket number: | 61 |
| Rock name: | Green altered polymictic volcanic breccia |
| Comments: | clay/chlorite? cement. Probably volcanic clasts - some maybe dolorite and baslat(?) |