Please login if you have access to particular applications.
Event details
| Voyage: | IN2020_V01 [details] |
| When: | 2020-03-03 16:59:44 UTC |
| Log: | Geology_Rocks_in2020_v01 |
| Equipment: | Not specified |
| Position: | Latitude: -32.6944 Longitude: 105.5257 Position from underway logging |
| Sample number: | IN2020_V01_D20_024 |
| Dredge: | D20 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | yes, in IN2020_V01_D20_024 |
| 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 (%): | 97 |
| Vesicle fill: | Black mineral |
| Sample bagged: | yes |
| Bucket number: | 3 of 5 |
| Rock name: | Strongly altered, vesicular, aphanitic basalt |
| Original Sample Dimensions: | 9x19x18 cm |
| Comments: | Partial sample saved. Hydrothermal alteration; groundmass altered to qtz + green minerals (epidote, chlorite, actinolite?). Minor fracturing, |