Quartz-hosted embayment from the Mesa Falls Tuff
By Yellowstone Volcano Observatory
August 2024 (approx.)
Detailed Description
(A) Photomicrograph of a quartz-hosted embayment from the Mesa Falls Tuff. “MI” indicates a glassy inclusion of melt within the crystal. (B) Thickness (in centimeters) and extent of the Mesa Falls ash flow deposit (pink areas) and its source, Henrys Fork Caldera (dashed line). Figure by Kenneth Befus, University of Texas at Austin.
Sources/Usage
Can be used with attribution to Kenneth Befus, University of Texas at Austin