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Event details
Voyage: | IN2018_V08 [details] |
When: | 2018-12-29 05:00:21 UTC |
Log: | Geology_Rocks_in2018_v08 |
Equipment: | Not specified |
Position: | Latitude: -40.0044 Longitude: 157.1561 Position from underway logging |
Sample number: | IN2018_V08_D01_010 |
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: | brown |
Composition: | felsic |
Alteration: | altered |
Grain shape: | mixture |
Sorting: | poor |
Components: | volcanic non-vesicular |
Phenocryst mineralogy: | amphibole |
Phenocryst abundance (%): | 1 |
Phenocryst size range (mm): | 2-5 |
Groundmass: | glassy | microcrystaline | altered |
Vesicle abundance: | low (<30%) |
Sample bagged: | yes |
Sticker: | yes |
Bucket number: | 003 |
Rock name: | Monomictic trachytic hyaloclastite (jig-saw fit) |
Comments: | in situ |