Sample: 94SJP60
Sample ID: | 94SJP60 [1] |
Station ID: | 94SJP60 |
AT Num: | |
Volcano: | Skookum Creek |
Possible source: | |
Eruption: | |
Collector: | Preece, S. J. |
Date sampled: | 1994-00-00 |
Sample type 1: | Lava |
Color: | |
Final unit: | |
Text Description: | Blocky, rubbly outcrop of Dome D at the top of Site 12. Fine grained, weakly porphyritic with a matrix of symplectic feldspar and quartz. Phenocrysts of feldspar are present. There are several small blue, green and brown microphenocrysts present. Electron microprobe analysis indicates that color is a poor guide to determining what the microphenocrysts are. The EMP analyses are amphibole-like, arfvedsonite? and astrophyllite?. Apatite needles are also present. |
Sample Location: |