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Event details
Voyage: | IN2020_V01 [details] |
When: | 2020-03-02 18:20:00 UTC |
Log: | Geology_Rocks_in2020_v01 |
Equipment: | Not specified |
Position: | Latitude: -33.1592 Longitude: 101.2349 Position from underway logging |
Sample number: | IN2020_V01_D20_008 |
Dredge: | D20 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | yes, in IN2020_V01_D20_008 |
Number of photos: | 3 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | grey-light | white | green |
Composition: | mafic |
Alteration: | altered |
Phenocryst abundance (%): | 0 |
Groundmass: | microcrystaline | altered |
Vesicle abundance: | 10-30% |
Vesicle Filling (%): | 80 |
Vesicle fill: | Black mineral |
Sample bagged: | yes |
Bucket number: | 1 of 5 |
Rock name: | Strongly altered, vesicular, aphanitic basalt |
Original Sample Dimensions: | 7x6.5x4 cm |
Comments: | Green alteration (epidote?, chlorite?, actinolite?). Minor fracturing. Sample encrusted in carbonate. Minor fracturing infilled with carbonate. |