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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-23 03:04:03 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -10.8497 Longitude: 156.7359 Position from underway logging |
| Sample number: | in2019_v04_D35_005 |
| Dredge: | D35 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 4 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | black | brown |
| Composition: | mafic |
| Phenocryst mineralogy: | feldspar | olivine[iddingsite] | pyroxene | altered |
| Phenocryst abundance (%): | 10 |
| Phenocryst size range (mm): | <1 |
| Groundmass: | altered |
| Vesicle abundance: | 30-50% |
| Vesicle Filling (%): | 20 |
| Vesicle fill: | Calcite |
| Alteration: | Mn crust |
| Sample bagged: | yes |
| Bucket number: | 53 |
| Rock name: | Altered pyroxene roch gabbro |
| Comments: | Mn-crust 5 mm, granulas are pzroxene? range from 1 - 2 mm, feldspar is visible, possibly pyroxenite, possibly ultramafic |