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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-19 19:38:30 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -14.1162 Longitude: 155.5683 Position from underway logging |
Sample number: | in2019_v04_D30_002 |
Dredge: | D30 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | Yes |
Number of photos: | 4 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | white | brown | yellow |
Composition: | mafic |
Alteration: | Mn crust | altered |
Phenocryst mineralogy: | feldspar | altered |
Phenocryst abundance (%): | 50 |
Phenocryst size range (mm): | 1-3 |
Groundmass: | microcrystaline | altered |
Vesicle abundance: | 30-50% |
Vesicle Filling (%): | 50 |
Vesicle fill: | calcite, clay, zeolite |
Sample bagged: | yes |
Bucket number: | 40 |
Rock name: | Vesicular rich altered basalt |
Comments: | Vesicles have greenish-grey rims surrounding them |