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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-15 23:55:40 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -15.0814 Longitude: 155.9534 Position from underway logging |
| Sample number: | in2019_v04_D18_003` |
| Dredge: | D18 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 1 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | grey-dark |
| Composition: | mafic |
| Phenocryst mineralogy: | feldspar |
| Phenocryst abundance (%): | 15 |
| Phenocryst size range (mm): | 2 |
| Groundmass: | microcrystaline |
| Features: | volcanic brecciated |
| Vesicle abundance: | 30-50% |
| Vesicle Filling (%): | 20 |
| Vesicle fill: | Clay |
| Alteration: | Mn crust | altered |
| Sample bagged: | yes |
| Bucket number: | 36 |
| Rock name: | Highly vesicular feldsparic basalt |
| Comments: | Extremely granular, difficult to see what it is -> highly vesicular basalt? |