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Event details
Voyage: | IN2019_V04 [details] |
When: | 2019-08-21 12:31:58 UTC |
Log: | Geology_Rocks_in2019_v04 |
Equipment: | Not specified |
Position: | Latitude: -13.3272 Longitude: 154.3092 Position from underway logging |
Sample number: | in2019_v04_D33-010 |
Dredge: | D33 |
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 | brown |
Composition: | mafic |
Alteration: | Mn crust | altered |
Phenocryst mineralogy: | other |
Groundmass: | altered |
Vesicle abundance: | absent |
Sample bagged: | yes |
Bucket number: | 49 |
Rock name: | Brown altered volcanic rock |
Comments: | Zeolite. rock is highly altered to dark brown. white mineral (zeolite?) has size of <2 mm. Fine grained texture. Similar to sample 006, 007, 008, 009 |