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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-30 02:44:11 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -19.728 Longitude: 158.1564 Position from underway logging |
Sample number: | in2019_v04_D41_006 |
Dredge: | D41 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | Yes |
Number of photos: | 4 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | grey-light |
Composition: | mafic |
Alteration: | Mn crust | altered |
Phenocryst mineralogy: | feldspar |
Phenocryst abundance (%): | 0 |
Groundmass: | microcrystaline |
Vesicle abundance: | absent |
Sample bagged: | yes |
Bucket number: | 73 |
Rock name: | Altered feldspar-rich basalt |
Comments: | Mn-crust 10 mm, very fine groundmass, difficult to tell type but looks like a basalt, fractures filled with clay |