Skip to main content
U.S. flag

An official website of the United States government

Quartz-hosted embayment from the Mesa Falls Tuff

By Yellowstone Volcano Observatory August 2024 (approx.)
Photomicrograph showing a quartz-hosted embayment from the Mesa Falls Tuff, accompanied by a map showing the location of the tuff in eastern Idaho.
Original Thumbnail Medium

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