Please login if you have access to particular applications.
Event details
| Voyage: | IN2020_V01 [details] |
| When: | 2020-03-02 18:05:07 UTC |
| Log: | Geology_Rocks_in2020_v01 |
| Equipment: | Not specified |
| Position: | Latitude: -33.1597 Longitude: 101.2347 Position from underway logging |
| Sample number: | IN2020_V01_D20_004 |
| Dredge: | D20 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | yes, in IN2020_V01_D20_004 |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | grey-dark |
| Composition: | mafic |
| Alteration: | Mn crust | altered |
| Phenocryst abundance (%): | 10 |
| Phenocryst size range (mm): | 4 |
| Groundmass: | microcrystaline | altered |
| Mn crust thickness (mm): | <1 |
| Vesicle abundance: | <10% |
| Vesicle Filling (%): | 100 |
| Sample bagged: | yes |
| Bucket number: | 1 of 5 |
| Rock name: | Strongly altered porphyritic basalt |
| Original Sample Dimensions: | 25x21x18 cm |
| Comments: | Plagioclase phenocrysts are clay altered, and others are pseudomorphed with muscovite. Moderately fractured; fractures infilled with white mineral. |