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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-31 22:21:32 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -23.9218 Longitude: 159.3081 Position from underway logging |
| Sample number: | in2019_v04_D54_010 |
| Dredge: | D54 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 5 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | black | brown |
| Composition: | mafic |
| Alteration: | Mn crust | altered |
| Phenocryst mineralogy: | feldspar |
| Groundmass: | microcrystaline | altered |
| Vesicle abundance: | 30-50% |
| Vesicle Filling (%): | 20 |
| Vesicle fill: | Calcite, Fe oxide |
| Sample bagged: | yes |
| Bucket number: | 91 |
| Rock name: | Highly vesicular feldspar-rich basalt |
| Comments: | Mn-crust 0.5 - 2 mm, vesicles suangular - angular and differ in size from 0.5 mm - 12 mm, coral fragment on top of Mn-crust, feldspar visible |