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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-27 08:39:11 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -14.7458 Longitude: 160.3558 Position from underway logging |
| Sample number: | in2019_v04_D45_002 |
| Dredge: | D45 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 5 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | black | grey-dark | white | brown |
| Composition: | sedimentary |
| Alteration: | Mn crust | altered |
| Phenocryst mineralogy: | feldspar | olivine[iddingsite] |
| Phenocryst abundance (%): | 30 |
| Phenocryst size range (mm): | 1-3 |
| Groundmass: | microcrystaline |
| Vesicle abundance: | 30-50% |
| Vesicle Filling (%): | 10 |
| Vesicle fill: | calcite |
| Grain size: | pebble (2-64 mm) | cobble (>64 mm) |
| Grain shape: | angular |
| Sorting: | poor |
| Components: | volcanic vesicular |
| Cement: | calcite |
| Sample bagged: | yes |
| Bucket number: | 82 |
| Rock name: | Carbonate matrix-supported feldspar phyric basalt clast breccia |
| Requested: | UK |
| Comments: | Matrix is calcareous grainstone with burrows. Clasts are fresh feldspar phyric basalts and aphyric basalts. The core of the clasts are more fresh than the ring. |