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Event details
| Voyage: | IN2018_V08 [details] |
| When: | 2019-01-02 05:21:05 UTC |
| Log: | Geology_Rocks_in2018_v08 |
| Equipment: | Not specified |
| Position: | Latitude: -37.6119 Longitude: 156.2831 Position from underway logging |
| Sample number: | IN2018_V08_D09_005 |
| Dredge: | 09 |
| Dredge Date: | 2/1/19 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Sample sawn: | Yes |
| Sawn sample photographed: | Yes |
| Number of photos: | 2 |
| Colour: | black | grey-dark |
| Composition: | mafic |
| Alteration: | Fresh | Mn crust |
| Phenocryst mineralogy: | feldspar |
| Phenocryst abundance (%): | 2 |
| Phenocryst size range (mm): | 1-2 |
| Groundmass: | microcrystaline |
| Vesicle abundance: | high (>50%) |
| Sample bagged: | yes |
| Sticker: | yes |
| Bucket number: | 025 |
| Rock name: | feldspar phyric vesicular basalt |
| Comments: | 1-2cm mn crust. 1-2cm alteration rim between fresh lava and mn crust. highly vesicular with some clay filled amygdales. most vesicles are spherical with diameters 1mm-3mm. |