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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-21 12:26:27 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -13.3314 Longitude: 154.293 Position from underway logging |
Sample number: | in2019_v04_D33_009 |
Dredge: | D33 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | Yes |
Number of photos: | 4 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | black | grey-dark | red |
Composition: | mafic |
Alteration: | Mn crust | altered |
Phenocryst abundance (%): | 0% |
Vesicle abundance: | absent |
Grain size: | pebble (2-64 mm) |
Grain shape: | angular |
Sorting: | poor |
Components: | volcanic non-vesicular |
Sample bagged: | yes |
Bucket number: | 49 |
Rock name: | Red/green altered volcanic rock in Mn nodule |
Comments: | Mn nodule with crust 20 mm. Cracks in the last and alteration around the cracks. Small class in Mn crust (size 0.5 cm long) |