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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-18 23:25:39 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -14.382 Longitude: 155.458 Position from underway logging |
Sample number: | in2019_v04_D27_003 |
Dredge: | D27 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | Yes |
Number of photos: | 4 |
Sample sawn: | No |
Sticker: | yes |
Colour: | black | grey-dark | red |
Composition: | intermediate |
Phenocryst mineralogy: | feldspar |
Groundmass: | microcrystaline |
Vesicle abundance: | <10% |
Vesicle Filling (%): | 100 |
Vesicle fill: | Mica |
Alteration: | Mn crust | altered |
Sample bagged: | yes |
Bucket number: | 37 |
Rock name: | Trachyte |
Comments: | Mn-crust 3mm, infilled amygdale with mica, trachitic texture, very fined grained, plagioclase laths are not alligned. |