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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-26 02:37:53 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -14.0369 Longitude: 159.647 Position from underway logging |
Sample number: | in2019_v04_D42-007 |
Dredge: | D42 |
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 |
Composition: | mafic |
Alteration: | Mn crust | altered |
Phenocryst mineralogy: | pyroxene | altered |
Groundmass: | microcrystaline |
Vesicle abundance: | <10% |
Vesicle Filling (%): | 80 |
Vesicle fill: | Calcite, Nn-oxide |
Sample bagged: | yes |
Bucket number: | 78 |
Rock name: | Altered feldspar-rich basalt |
Comments: | Cracks Fe2O3 altered. Greenish alteration on one side of the rock ~ 15mm long at rim |