Alaska Volcano Observatory

Backscatter electron polished mount image of an Edgecumbe basalt scoria clast (sample 81ARJ073A). A rare ~1 mm-long plagioclase phenocryst is visible in this image. Image acquired on an JEOL 6510LV SEM at 20 kV, 12 mm working distance, spot size of 65, and in BEC imaging mode.

Credit: Image courtesy of AVO/USGS.
Use Restriction: Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.
Full Resolution.