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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-21 00:35:36 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -12.6465 Longitude: 153.64 Position from underway logging |
| Sample number: | in2019_v04_D32_004 |
| Dredge: | D32 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | black | grey-dark | grey-light |
| Composition: | intermediate |
| Phenocryst mineralogy: | feldspar |
| Groundmass: | microcrystaline |
| Vesicle abundance: | <10% |
| Vesicle Filling (%): | 30 |
| Vesicle fill: | zeolite? |
| Alteration: | Mn crust | altered |
| Grain size: | sand (<2 mm) |
| Grain shape: | angular |
| Sorting: | poor |
| Sample bagged: | yes |
| Bucket number: | 44 |
| Rock name: | Vesicular feldspar phyric basalt |
| Comments: | Mn-crust 2 - 3 mm, abundant feldspar phenocryst |