Sample: 94SJP64
Sample ID: | 94SJP64 [1] |
Station ID: | 94SJP64 |
AT Num: | |
Volcano: | Skookum Creek |
Possible source: | |
Eruption: | |
Collector: | Preece, S. J. |
Date sampled: | 1994-00-00 |
Sample type 1: | Tuff |
Color: | |
Final unit: | |
Text Description: | Rounded block from a palagonitized tuff at Gutbuster. Fine grained, vesicular, holocrystalline, porphyritic with a matrix of devitrified brown glass and plagioclase. Plagioclase phenocrysts (An38, An55 - An61) are up to 4.37 mm; both normal and oscillatory zoning are present; grains are occasionally sieve textured with brown melt inclusions. Orthopyroxene phenocrysts are up to 2.87 mm. |
Sample Location: |