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Event details
Voyage: | IN2020_V01 [details] |
When: | 2020-03-03 20:36:57 UTC |
Log: | Geology_Rocks_in2020_v01 |
Equipment: | Not specified |
Position: | Latitude: -32.6316 Longitude: 106.314 Position from underway logging |
Sample number: | IN2020_V01_D20_038 |
Dredge: | D20 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | yes, in IN2020_V01_D20_038 |
Number of photos: | 5 |
Sample sawn: | Yes |
Sticker: | no |
Colour: | grey-dark | grey-light | white | green |
Composition: | other |
Alteration: | Mn crust | altered |
Phenocryst abundance (%): | 0 |
Groundmass: | altered |
Mn crust thickness (mm): | <1 |
Vesicle abundance: | <10% |
Vesicle Filling (%): | 100 |
Vesicle fill: | quartz |
Sample bagged: | yes |
Bucket number: | 5 of 5 |
Rock name: | Intensely altered, silicified basalt |
Original Sample Dimensions: | 25x30x30 cm |
Comments: | Intense quartz veining, veins ~3 cm thick. Green minerals in veins also (epidote?). Partial sample saved. |