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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-24 03:20:47 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -10.5245 Longitude: 157.3329 Position from underway logging |
Sample number: | in2019_v04_D37-028 |
Dredge: | D37 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | Yes |
Number of photos: | 3 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | black | grey-dark | red |
Composition: | mafic |
Alteration: | altered |
Phenocryst mineralogy: | feldspar |
Groundmass: | microcrystaline |
Vesicle abundance: | 10-30% |
Vesicle Filling (%): | 35 |
Vesicle fill: | calcite, zeolite |
Sample bagged: | yes |
Bucket number: | 72 |
Rock name: | Altered microcrystalline basalt |
Comments: | very fine grained, amygdules present, feldspar is altered, some calcite filled vesivles, altered veins |