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Event details
Voyage: | IN2020_V01 [details] |
When: | 2020-03-01 14:59:23 UTC |
Log: | Geology_Rocks_in2020_v01 |
Equipment: | Not specified |
Position: | Latitude: -33.6446 Longitude: 101.4662 Position from underway logging |
Sample number: | IN2020_V01_D19_005 |
Dredge: | D19 |
Sample Number Assigned: | Yes |
Sample photographed (include scale and sample number): | yes, in IN2020_V01_D19_005 |
Number of photos: | 3 |
Sample sawn: | Yes |
Sticker: | yes |
Colour: | white | brown |
Composition: | mafic |
Alteration: | altered |
Phenocryst abundance (%): | 5 |
Phenocryst size range (mm): | 1-2 |
Groundmass: | microcrystaline |
Vesicle abundance: | <10% |
Vesicle Filling (%): | 50 |
Vesicle fill: | White mineral |
Sample bagged: | yes |
Bucket number: | 1 of 1 |
Rock name: | Moderately altered, plagioclase-phyric basalt |
Original Sample Dimensions: | 19x8x8 cm |
Comments: | >20% fracturing, infilled with white minerals. <2% vesicles. Plagioclase phenocrysts slightly clay altered. Possibly in-situ. |