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Event details
| Voyage: | IN2020_V01 [details] |
| When: | 2020-03-03 16:09:58 UTC |
| Log: | Geology_Rocks_in2020_v01 |
| Equipment: | Not specified |
| Position: | Latitude: -32.721 Longitude: 105.3469 Position from underway logging |
| Sample number: | IN2020_V01_D20_015 |
| Dredge: | D20 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | yes, in IN2020_V01_D20_015 |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | grey-light |
| Composition: | mafic |
| Alteration: | Mn crust | altered |
| Phenocryst abundance (%): | 0 |
| Groundmass: | microcrystaline | altered |
| Mn crust thickness (mm): | <1 |
| Vesicle abundance: | <10% |
| Vesicle Filling (%): | 95 |
| Grain size: | pebble (2-64 mm) |
| Grain shape: | angular |
| Sorting: | moderate |
| Components: | volcanic non-vesicular |
| Cement: | other |
| Bucket number: | 2 of 5 |
| Rock name: | Moderately to strongly altered basalt breccia |
| Original Sample Dimensions: | 21x16x8 cm |
| Comments: | Brecciation possibly due to alteration, or autobrecciation. Matrix consits of black and white minerals. Matrix supported. Moderately altered aphanitic basalt clasts. Strongly altered matrix. |