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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-12 06:25:34 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -19.8054 Longitude: 154.7698 Position from underway logging |
Sample number: | IN2019_V04_D08_010 |
Dredge: | D08 |
Dredge Date: | 12.08.2019 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | Yes |
Number of photos: | 02 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | grey-light | yellow |
Composition: | mafic |
Phenocryst size range (mm): | Non visiblle, <1mm |
Groundmass: | microcrystaline |
Vesicle abundance: | absent |
Alteration: | altered |
Sample bagged: | yes |
Bucket number: | 18 |
Rock name: | Highly altered microcrystaline basalt/ Trachyte |
Comments: | Some highly altered veins scattered along the weakned planes |