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Event details
| Voyage: | IN2020_V01 [details] |
| When: | 2020-02-15 17:43:59 UTC |
| Log: | Geology_Rocks_in2020_v01 |
| Equipment: | Not specified |
| Position: | Latitude: -44.0763 Longitude: 87.1687 Position from underway logging |
| Sample number: | IN2020_V01_D12_003 |
| Dredge: | D12 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | yes, in IN2020_V01_D12_003 |
| Number of photos: | 5 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | pink | brown |
| Composition: | mafic |
| Alteration: | Mn crust | altered |
| Phenocryst mineralogy: | other |
| Phenocryst abundance (%): | 0 |
| Groundmass: | microcrystaline | altered |
| Mn crust thickness (mm): | 1-2 |
| Vesicle abundance: | <10% |
| Vesicle Filling (%): | 98 |
| Vesicle fill: | calcite, clay and other |
| Grain size: | pebble (2-64 mm) |
| Grain shape: | rounded |
| Sorting: | moderate |
| Components: | volcanic vesicular |
| Cement: | calcite | zeolite | other |
| Sample bagged: | yes |
| Bucket number: | 2 of 3 |
| Rock name: | strongly altered vesicular aphanitic basalt breccia |
| Original Sample Dimensions: | 19x16x8.5 cm |
| Comments: | calcite infilled fracture/matrix; fine-grained strongly altered; jigsaw-fit texture; monomict. (either autoclastic or pseudo brecciation of a previously coherent but fractured basalt); subrounded clasts up to 4cm; |