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Event details
| Voyage: | IN2018_V08 [details] |
| When: | 2019-01-03 22:26:02 UTC |
| Log: | Geology_Rocks_in2018_v08 |
| Equipment: | Not specified |
| Position: | Latitude: -40.2494 Longitude: 153.4308 Position from underway logging |
| Sample number: | IN2018_V08_D13_009 |
| Dredge: | 13 |
| Dredge Date: | 04/01/2019 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Sample sawn: | Yes |
| Sawn sample photographed: | Yes |
| Number of photos: | 2 |
| Colour: | black | grey-dark | red |
| Composition: | mafic |
| Alteration: | Fresh | Mn crust | altered |
| Phenocryst mineralogy: | feldspar |
| Phenocryst abundance (%): | 15 |
| Phenocryst size range (mm): | 025-1 |
| Groundmass: | microcrystaline | altered |
| Vesicle abundance: | low (<30%) |
| Sample bagged: | yes |
| Sticker: | yes |
| Bucket number: | 036 |
| Rock name: | altered basalt |
| Comments: | 1-2cm Mn crust. Altered red in the center, band of fresh between altered center and Mn crust |