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Event details
Voyage: | IN2020_V01 [details] |
When: | 2020-03-02 18:07:50 UTC |
Log: | Geology_Rocks_in2020_v01 |
Equipment: | Not specified |
Position: | Latitude: -33.1597 Longitude: 101.2347 Position from underway logging |
Sample number: | IN2020_V01_D20_005 |
Dredge: | D20 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | yes, in IN2020_V01_D20_005 |
Number of photos: | 3 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | grey-light | yellow |
Composition: | mafic |
Phenocryst abundance (%): | 10 |
Phenocryst size range (mm): | 4 |
Groundmass: | microcrystaline | altered |
Mn crust thickness (mm): | <1 |
Vesicle abundance: | <10% |
Vesicle Filling (%): | 95 |
Sample bagged: | yes |
Bucket number: | 1 of 5 |
Rock name: | Moderately altered, porphyritic basalt |
Original Sample Dimensions: | 11x8x6 cm |
Comments: | Plagioclase phenocrysts are clay altered, and others are pseudomorphed with muscovite. |