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Event details
| Voyage: | IN2019_V04 [details] |
| When: | 2019-08-25 22:00:10 UTC |
| Log: | Geology_Rocks_in2019_v04 |
| Equipment: | Not specified |
| Position: | Latitude: -13.4534 Longitude: 159.1273 Position from underway logging |
| Sample number: | in2019_v04_D41-011 |
| Dredge: | D41 |
| Sample Number Assigned: | Yes |
| Sample photographed (include scale and sample number): | Yes |
| Number of photos: | 3 |
| Sample sawn: | Yes |
| Sticker: | yes |
| Colour: | black | grey-dark | red |
| Composition: | sedimentary |
| Alteration: | Mn crust | altered |
| Phenocryst mineralogy: | feldspar |
| Phenocryst abundance (%): | 10 |
| Groundmass: | altered |
| Vesicle abundance: | <10% |
| Vesicle Filling (%): | 50 |
| Vesicle fill: | calcite |
| Grain size: | sand (<2 mm) | pebble (2-64 mm) |
| Grain shape: | rounded |
| Sorting: | poor |
| Components: | volcanic vesicular | volcanic non-vesicular | other |
| Sample bagged: | yes |
| Bucket number: | 75 |
| Rock name: | Matrix supported polymictic conglomerate |
| Comments: | - Grains, mostly subrounded - Alteration varies in different grains/clasts - Some clasts are volcanics an contain feldspars - Black rounded spots - Mn oxide? - in clasts - 0.5-1mm white crystals in clasts are usually calcite - Weak grading? |
| Comments: | - Grains, mostly subrounded - Alteration varies in different grains/clasts - Some clasts are volcanics an contain feldspars - Black rounded spots - Mn oxide? - in clasts - 0.5-1mm white crystals in clasts are usually calcite - Weak grading? |