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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-21 13:32:37 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -13.2799 Longitude: 154.4868 Position from underway logging |
| Sample number: | in2019_v04_D33-027 |
| Dredge: | D33 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 4 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | black | brown | green |
| Composition: | mafic |
| Alteration: | Mn crust | altered |
| Phenocryst mineralogy: | feldspar |
| Phenocryst abundance (%): | 10 |
| Groundmass: | altered |
| Vesicle abundance: | absent |
| Sample bagged: | yes |
| Bucket number: | 49 |
| Rock name: | Two highly altered basalt clasts in Mn nodule |
| Comments: | Mn crust 10-20 mm thick. Similar to D33-021 and -025 to -032, some of the space between the two clasts is filled by silicaceous mud (does not react with hcl) |