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Event details
Voyage: | IN2020_V01 [details] |
When: | 2020-02-21 15:04:14 UTC |
Log: | Geology_Rocks_in2020_v01 |
Equipment: | Not specified |
Position: | Latitude: -32.5063 Longitude: 101.605 Position from underway logging |
Sample number: | IN2020_V01_D15_008 |
Dredge: | D15 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | yes, in IN2020_V01_D15_008 |
Number of photos: | 3 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | grey-dark |
Composition: | mafic |
Alteration: | Mn crust | altered |
Phenocryst abundance (%): | 0 |
Groundmass: | microcrystaline | altered |
Mn crust thickness (mm): | <1 |
Vesicle abundance: | 30-50% |
Vesicle Filling (%): | 100 |
Vesicle fill: | Clay and black mineral |
Sample bagged: | yes |
Bucket number: | 2 of 2 |
Rock name: | Weakly altered, aphanitic basalt |
Original Sample Dimensions: | 16x8x14 cm |
Comments: | Few grains of a green alteration mineral. |