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Event details

Voyage: IN2020_V01       [details]
When: 2020-02-15 18:39:31 UTC
Log: Geology_Rocks_in2020_v01
Equipment: Not specified
Position: Latitude: -43.92 Longitude: 87.295 Position from underway logging
Sample number:IN2020_V01_D12_010
Dredge:D12
Sample Number Assigned:Yes
Sample photographed (include scale and sample number):yes, in IN2020_V01_D12_010
Number of photos:4
Sample sawn:Yes
Sticker:yes
Colour:grey-dark
Composition:mafic
Alteration:Mn crust | altered
Phenocryst mineralogy:feldspar | pyroxene | biotite
Phenocryst abundance (%):0
Groundmass:microcrystaline
Mn crust thickness (mm):<1
Vesicle abundance:<10%
Vesicle Filling (%):50
Vesicle fill:clay and other
Sample bagged:yes
Bucket number:3 of 3
Rock name:moderately altered, aphanitic basalt
Original Sample Dimensions:17.5x9x5 cm
Comments:minor fracturing; zone of finer grains; occasional pyroxene and plagioclase pseudomorphs
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