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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-21 01:45:26 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -12.6484 Longitude: 153.643 Position from underway logging |
Sample number: | in2019_v04_D32_026 |
Dredge: | D32 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | yes |
Number of photos: | 5 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | grey-dark | grey-light | brown |
Composition: | intermediate |
Phenocryst mineralogy: | feldspar |
Phenocryst abundance (%): | 30 |
Phenocryst size range (mm): | 0.5-1 |
Groundmass: | microcrystaline |
Vesicle abundance: | absent |
Sample bagged: | yes |
Bucket number: | 45 |
Rock name: | Altered feldspar phyric (Intermediate mafic ?) |
Comments: | Abundant feldspar phenocrysts, leaves like pattern (Dentrites) on surface |