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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-26 03:49:41 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -14.1333 Longitude: 159.6795 Position from underway logging |
| Number of photos: | 6 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | black | red | brown |
| Composition: | mafic |
| Alteration: | Mn crust | altered |
| Phenocryst mineralogy: | feldspar | pyroxene | altered |
| Groundmass: | microcrystaline |
| Vesicle abundance: | absent |
| Sample bagged: | yes |
| Bucket number: | 78 |
| Rock name: | Weakly altered basalt to altered glass breccia |
| Comments: | Perlite -> probably has been volcanic glass eventually still glass visible but altered. Basalt sows steps of alteration from subtle to strongly altered. Fe2O3 oxidised minerals. Altered pyroxene and olivine |
| Sample number: | in2019_v04_D42-016 |
| Dredge: | D42 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |