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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-26 11:49:31 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -14.2061 Longitude: 159.671 Position from underway logging |
Sample number: | in2019_v04_D43-007 |
Dredge: | D43 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | Yes |
Number of photos: | 3 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | grey-light | brown |
Composition: | mafic |
Alteration: | Mn crust |
Phenocryst mineralogy: | feldspar | pyroxene |
Phenocryst abundance (%): | 5 |
Phenocryst size range (mm): | 1 |
Groundmass: | crystalline |
Vesicle abundance: | <10% |
Vesicle Filling (%): | 0 |
Grain size: | pebble (2-64 mm) |
Grain shape: | angular |
Sorting: | poor |
Components: | volcanic vesicular |
Cement: | calcite |
Sample bagged: | yes |
Bucket number: | 80 |
Rock name: | Feldspar-phyric basaltic breccia |
Comments: | 30mm Mn crust. Fragments of basaltic rocks similar to -002 and -006. Calcite cement with smaller feldspar grains inside groundmass 2-4mm. |