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Event details
Voyage: | IN2018_V08 [details] |
When: | 2018-12-29 05:23:26 UTC |
Log: | Geology_Rocks_in2018_v08 |
Equipment: | Not specified |
Position: | Latitude: -39.9521 Longitude: 157.1954 Position from underway logging |
Phenocryst abundance (%): | 7 |
Phenocryst size range (mm): | 1-4 |
Groundmass: | altered |
Vesicle abundance: | low (<30%) |
Sample bagged: | yes |
Sticker: | yes |
Bucket number: | 006 |
Rock name: | altered feldspar-phyric andesite |
Sample number: | IN2018_V08_D01_018 |
Dredge: | 01 |
Dredge Date: | 28/12/2018 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | Yes |
Sample sawn: | Yes |
Sawn sample photographed: | Yes |
Colour: | black | white | red | brown |
Composition: | intermediate |
Alteration: | Mn crust | altered |
Phenocryst mineralogy: | feldspar | feromagnesian | altered |