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Event details

Voyage: IN2018_V08       [details]
When: 2019-01-03 15:12:13 UTC
Log: Geology_Rocks_in2018_v08
Equipment: Not specified
Position: Latitude: -39.9283 Longitude: 153.6313 Position from underway logging
Sample number:IN2018_V08_D12_025
Dredge:12
Dredge Date:03/01/2019
Sample Number Assigned:Yes
Sample photographed (include scale and sample number):Yes
Sample sawn:Yes
Sawn sample photographed:Yes
Number of photos:3
Colour:brown
Composition:mafic
Alteration:Fresh | Mn crust | altered
Phenocryst mineralogy:feldspar | pyroxene | feromagnesian
Phenocryst abundance (%):2
Phenocryst size range (mm):1-5
Groundmass:microcrystaline | altered
Vesicle abundance:low (<30%)
Sample bagged:yes
Sticker:yes
Bucket number:034
Rock name:non-vesicular feldspar-pyroxene phyric basalt
Comments:thick mn crust >5cm. alteration of some phenocrysts. alteration of fractures. calcitic veins.
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