John Fegyveresi publishes on ice core bubbles as strain indicators
Adjunct Assistant Professor John Fegyveresi and his colleagues have penned “Instruments and methods: a case study of ice core bubbles as strain indicators” in Annals of Glaciology. In their abstract, the authors note, “Measurements of a sample from ~580 m depth in the WAIS Divide (WDC06A) ice core reveal that bubbles are preferentially elongated in the basal plane of their parent grain, as expected if bubble shape preserves the record of dominant basal glide. This suggests that a method using bubbles as strain gauges could provide insights to grain-scale ice deformation. We introduce a technique using fabric and image analyses of paired thin and thick sections.”