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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-24 00:49:11 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -10.5082 Longitude: 157.3421 Position from underway logging |
| Sample number: | in2019_v04_D37-006 |
| Dredge: | D37 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | black | white | yellow |
| Composition: | mafic |
| Alteration: | Mn crust |
| Phenocryst mineralogy: | feldspar | altered |
| Phenocryst abundance (%): | 0 |
| Groundmass: | microcrystaline |
| Features: | volcanic brecciated |
| Vesicle abundance: | absent |
| Grain size: | pebble (2-64 mm) |
| Grain shape: | angular |
| Sorting: | poor |
| Components: | crystals | volcanic non-vesicular |
| Sample bagged: | yes |
| Bucket number: | 69 |
| Rock name: | polymictic breccia |
| Comments: | calcite in some parts, one clasts shows high amounts of pyroxine > pyroximite (?), 3 other big clasts, fina grain basalt, clast supported matrix, somtimes fizzes, yellow alteration on some minerals |