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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-15 00:49:58 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -16.7454 Longitude: 155.5693 Position from underway logging |
Sample number: | in2019_v04_D16_007 |
Dredge: | D16 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | Yes |
Number of photos: | 3 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | white | brown | yellow |
Composition: | sedimentary |
Phenocryst mineralogy: | feldspar | olivine[iddingsite] | pyroxene |
Phenocryst abundance (%): | 35 |
Phenocryst size range (mm): | <1-10 |
Groundmass: | altered |
Vesicle abundance: | 30-50% |
Vesicle Filling (%): | 100% |
Vesicle fill: | calcite |
Alteration: | Mn crust | altered |
Grain size: | pebble (2-64 mm) |
Grain shape: | angular |
Sorting: | poor |
Components: | carbonate/shell |
Cement: | calcite |
Sample bagged: | yes |
Bucket number: | 33 |
Rock name: | Altered vesicular baslt in a fossilforous limestone crust |
Comments: | Mn <1mm, Limestine crust surrounding the basalt, surrounding carbonate crust contains forminifera, coral and, various shells. |