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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-26 03:49:41 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -14.1333 Longitude: 159.6795 Position from underway logging |
Number of photos: | 6 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | black | red | brown |
Composition: | mafic |
Alteration: | Mn crust | altered |
Phenocryst mineralogy: | feldspar | pyroxene | altered |
Groundmass: | microcrystaline |
Vesicle abundance: | absent |
Sample bagged: | yes |
Bucket number: | 78 |
Rock name: | Weakly altered basalt to altered glass breccia |
Comments: | Perlite -> probably has been volcanic glass eventually still glass visible but altered. Basalt sows steps of alteration from subtle to strongly altered. Fe2O3 oxidised minerals. Altered pyroxene and olivine |
Sample number: | in2019_v04_D42-016 |
Dredge: | D42 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | Yes |