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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-09-01 03:10:38 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -24.1176 Longitude: 158.9218 Position from underway logging |
Sample number: | in2019_v04_D55-002 |
Dredge: | D55 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | Yes |
Number of photos: | 4 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | black | white |
Composition: | carbonate |
Phenocryst mineralogy: | feldspar |
Phenocryst abundance (%): | 10 |
Phenocryst size range (mm): | 0.5-2 |
Groundmass: | microcrystaline | altered |
Vesicle abundance: | 10-30% |
Vesicle Filling (%): | 20 |
Vesicle fill: | iron oxide |
Grain size: | sand (<2 mm) | pebble (2-64 mm) |
Grain shape: | rounded |
Sorting: | poor |
Components: | volcanic vesicular | carbonate/shell |
Cement: | calcite |
Sample bagged: | yes |
Bucket number: | 94 |
Rock name: | Grainstone matrix-supported feldspar-phyric basalt clast conglomerate |
Comments: | feldspar phenocryst present. Corals and bivalve fossils |