Sample: 93SJP16
Sample ID: | 93SJP16 [1] |
Station ID: | 93SJP16 |
AT Num: | |
Volcano: | Skookum Creek |
Possible source: | |
Eruption: | |
Collector: | Preece, S. J. |
Date sampled: | 1993-00-00 |
Sample type 1: | Lava |
Color: | |
Final unit: | |
Text Description: | Weathered and fractured outcrop of Dome C at Finger Creek. Fine-grained, holocrystalline, pilotaxitic, seriate to porphyritic with a matrix of feldspar, opaque, alteration, and biotite? or amphibole?. Plagioclase phenocrysts (An52) are up to 2.5 mm and commonly zoned. Orthopyroxene phenocrysts up to 0.2 mm. Opaque phenocrysts up to 0.25 mm. Altered phase is present that consists of calcite, feldspar, and opaque. |
Sample Location: |