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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-19 20:59:13 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -13.925 Longitude: 155.523 Position from underway logging |
Sample number: | in2019_v04_D30_020 |
Dredge: | D30 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | Yes |
Number of photos: | 3 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | black | grey-light | white |
Composition: | sedimentary |
Phenocryst mineralogy: | feldspar |
Phenocryst abundance (%): | 20 |
Phenocryst size range (mm): | <2 |
Groundmass: | microcrystaline |
Vesicle abundance: | absent |
Grain size: | pebble (2-64 mm) |
Grain shape: | angular |
Cement: | calcite |
Sample bagged: | yes |
Bucket number: | 41 |
Rock name: | Calcite matrix supported basalt brecccia |
Comments: | Feldspar laths up to 3 mm, band size glass grains |