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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-30 22:51:55 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -22.2987 Longitude: 159.2213 Position from underway logging |
Sample number: | in2019_v04_D51-006 |
Dredge: | D51 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | Yes |
Number of photos: | 4 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | brown |
Composition: | sedimentary |
Alteration: | Mn crust | altered |
Vesicle abundance: | 10-30% |
Vesicle Filling (%): | 80 |
Vesicle fill: | Fe-oxide alteration and Mn Oxide |
Grain size: | silt | sand (<2 mm) |
Grain shape: | rounded |
Sorting: | good |
Components: | carbonate/shell |
Cement: | calcite |
Sample bagged: | yes |
Bucket number: | 90 |
Rock name: | Altered good sorted sandy siltstone |
Comments: | Mn-oxide alteration 1-2mm throughout rock. Tiny white (<1mm) well rounded grains -> forams? |