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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-21 10:30:11 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -13.4218 Longitude: 153.9532 Position from underway logging |
Sample number: | in2019_v04_D33-014 |
Dredge: | D33 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | yes |
Number of photos: | 3 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | black | brown |
Composition: | sedimentary |
Alteration: | Fresh | Mn crust | altered |
Grain size: | silt |
Grain shape: | rounded |
Sorting: | good |
Components: | other |
Sample bagged: | yes |
Bucket number: | 48 |
Rock name: | Trace fossil contained mudstone |
Comments: | Mn crust 30 mm thick. Fewer trace fossils than in D33-013 - some vertical and horizontal burrows filled with either Mn oxide or really dark brown/black clay - a few 3-4mm size clay fragments in the Mn crust - thin Mn oxide layers in the mudstone itself, in the cracks? |