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Event details
| Voyage: | IN2020_V01 [details] |
| When: | 2020-02-04 15:07:44 UTC |
| Log: | Geology_Rocks_in2020_v01 |
| Equipment: | Not specified |
| Position: | Latitude: -53.1364 Longitude: 82.0257 Position from underway logging |
| Sample number: | IN2020_V01_D09_027 |
| Dredge: | D09 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | yes, in IN2020_V01_D09_027 |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | grey-light |
| Composition: | mafic |
| Alteration: | Mn crust | altered |
| Phenocryst mineralogy: | feldspar |
| Phenocryst abundance (%): | 10 |
| Phenocryst size range (mm): | 1 |
| Groundmass: | microcrystaline |
| Mn crust thickness (mm): | 1-10 |
| Vesicle abundance: | 30-50% |
| Vesicle Filling (%): | 85 |
| Vesicle fill: | other |
| Sample bagged: | yes |
| Bucket number: | 4 of 6 |
| Rock name: | bimodal vesicular and non-vesicular phaneritic basalt |
| Original Sample Dimensions: | 33 x 21 x 21 cm |
| Comments: | Minor fracturing; moderate alteration. 10% of phenocrysts are altered. Black mineral in some vesicles. Vesicles are concentrated in a layer, with zones of non-vesicular groundmass present. |