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Event details

Voyage: IN2018_V08       [details]
When: 2019-01-08 08:00:38 UTC
Log: Geology_Rocks_in2018_v08
Equipment: Not specified
Position: Latitude: -45.8633 Longitude: 150.2991 Position from underway logging
Sample number:IN2018_V08_D16_004
Dredge:16
Dredge Date:08/01/2019
Sample Number Assigned:Yes
Sample photographed (include scale and sample number):Yes
Sample sawn:Yes
Sawn sample photographed:Yes
Number of photos:2
Colour:grey-dark
Composition:mafic
Alteration:Mn crust | altered
Phenocryst mineralogy:feldspar | pyroxene
Phenocryst abundance (%):15
Phenocryst size range (mm):0.15-3
Groundmass:microcrystaline
Vesicle abundance:low (<30%)
Sample bagged:yes
Sticker:yes
Bucket number:051
Rock name:Feldspar-pyroxene phyric basalt
Comments:Some fresh pyroxene, others are altered (orange colour). Pitted altered pyroxene. 2cm alteration rim (iron oxide). 0.5cm Mn crust
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