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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-23 04:43:22 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -10.5597 Longitude: 156.8448 Position from underway logging |
Sample number: | in2019_v04_D35_024 |
Dredge: | D35 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | Yes |
Number of photos: | 5 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | black | grey-dark | grey-light |
Composition: | mafic |
Phenocryst mineralogy: | feldspar | pyroxene |
Phenocryst abundance (%): | 10 |
Phenocryst size range (mm): | <1 |
Groundmass: | altered |
Vesicle abundance: | 10-30% |
Vesicle Filling (%): | 5 |
Vesicle fill: | ? |
Alteration: | altered |
Sample bagged: | yes |
Bucket number: | 55 |
Rock name: | Altered feldspar phyric basalt |
Comments: | Pyroxene crystals in a few places, manganese infills present, very fine grained |