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Event details
Voyage: | IN2020_V01 [details] |
When: | 2020-02-15 19:23:07 UTC |
Log: | Geology_Rocks_in2020_v01 |
Equipment: | Not specified |
Position: | Latitude: -43.7953 Longitude: 87.3955 Position from underway logging |
Sample number: | IN2020_V01_D12_017 |
Dredge: | D12 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | yes, in IN2020_V01_D12_017 |
Number of photos: | 5 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | grey-light | pink |
Composition: | mafic |
Alteration: | Mn crust | altered |
Phenocryst abundance (%): | 0 |
Groundmass: | microcrystaline |
Mn crust thickness (mm): | <1 |
Vesicle abundance: | 10-30% |
Vesicle Filling (%): | 50 |
Vesicle fill: | calcite and other |
Sample bagged: | yes |
Bucket number: | 3 of 3 |
Rock name: | weak-moderately altered, vesicular, aphanitic basalt |
Original Sample Dimensions: | 40x23x20 cm |
Comments: | minor fracturing; not all sample kept; band of increased alteration along one face; |