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Event details
Voyage: | IN2020_V01 [details] |
When: | 2020-02-19 13:34:48 UTC |
Log: | Geology_Rocks_in2020_v01 |
Equipment: | Not specified |
Position: | Latitude: -32.0106 Longitude: 96.1683 Position from underway logging |
Sample number: | IN2020_V01_D14_001 |
Dredge: | D14 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | Yes IN2020_V01_D14_001 |
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): | 2 |
Vesicle abundance: | 10-30% |
Vesicle Filling (%): | 75 |
Vesicle fill: | Clay and zeolites |
Sample bagged: | yes |
Bucket number: | 1 of 1 |
Rock name: | Weakly altered, vesicular, aphanitic basalt |
Original Sample Dimensions: | 13x5x5 cm |
Comments: | Altered feldspar microphenocrysts (few; and a possible clot). Weakly altered. |