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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-21 13:42:29 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -13.2721 Longitude: 154.5163 Position from underway logging |
| Comments: | Mn crust 10-30 mm. Similar to D33-021 and -025 to -032, rock contains other clasts that have not been cut by the saw - sme of the space between clasts is filled by silicaeous mud (does not react with hcl) |
| Sample number: | in2019_v04_D33-028 |
| Dredge: | D33 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 7 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | black | grey-light | white | brown |
| Composition: | mafic |
| Alteration: | Mn crust | altered |
| Phenocryst mineralogy: | feldspar |
| Phenocryst abundance (%): | 10 |
| Groundmass: | altered |
| Vesicle abundance: | <10% |
| Vesicle Filling (%): | 100 |
| Vesicle fill: | zeolite |
| Sample bagged: | yes |
| Bucket number: | 50 |
| Rock name: | Highly altered basalt clast in Mn nodule |