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Event details
Voyage: | IN2020_V01 [details] |
When: | 2020-03-03 16:54:49 UTC |
Log: | Geology_Rocks_in2020_v01 |
Equipment: | Not specified |
Position: | Latitude: -32.697 Longitude: 105.5082 Position from underway logging |
Sample number: | IN2020_V01_D20_023 |
Dredge: | D20 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | yes, in IN2020_V01_D20_023 |
Number of photos: | 3 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | brown | yellow | green |
Composition: | mafic |
Alteration: | Mn crust | altered |
Phenocryst abundance (%): | 0 |
Groundmass: | microcrystaline | altered | crystalline |
Vesicle abundance: | absent |
Sample bagged: | yes |
Bucket number: | 3 of 5 |
Rock name: | Intensely altered basalt |
Original Sample Dimensions: | 21x14x10 cm |
Comments: | Half sample kept. Patchy, thin manganese coating. Intensely fractures. Altered to qtz and green mineral (epitdote, chlorite, actinolite?). |