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Event details
Voyage: | IN2020_V01 [details] |
When: | 2020-02-21 16:45:33 UTC |
Log: | Geology_Rocks_in2020_v01 |
Equipment: | Not specified |
Position: | Latitude: -32.4962 Longitude: 101.9663 Position from underway logging |
Sample number: | IN2020_V01_D16_004 |
Dredge: | D16 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | yes, in IN2020_V01_D16_004 |
Number of photos: | 4 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | grey-light | yellow |
Composition: | mafic |
Alteration: | Mn crust | altered |
Groundmass: | microcrystaline | altered |
Mn crust thickness (mm): | 15 |
Vesicle abundance: | absent |
Grain size: | pebble (2-64 mm) |
Grain shape: | angular |
Sorting: | poor |
Components: | volcanic vesicular | volcanic non-vesicular |
Cement: | calcite | other |
Sample bagged: | yes |
Bucket number: | 1 of 1 |
Rock name: | Strongly altered aphanitic basalt breccia |
Original Sample Dimensions: | 15x8x5 cm |
Comments: | Basalt begining to form a breccia. Mixed vesicular and aphanitic basalt clasts. |