Mesa Falls Tuff

Mesa Falls ash bed

Mesa Falls Tuff Exposed at Rim of Caldera Near Ashton, Idaho

The Mesa Falls Tuff is a tuff formation created by the Mesa Falls eruption that formed the Henry's Fork Caldera that is located in Idaho west of Yellowstone Park.^[1] It is the second most recent caldera forming eruption from the Yellowstone hotspot and ejected of 280 km³ of material. This eruption, 1.3 million years BP, was preceded by the Huckleberry Ridge Tuff and succeeded by the Lava Creek Tuff both of which were created by the Yellowstone hotspot.^[2]

See also

• Yellowstone Caldera
• Snake River Plain
• Island Park, Idaho

References

1. ^ Christiansen, R.L., 2001, The Quaternary and Pliocene Yellowstone Plateau Volcanic Field of Wyoming, Idaho, and Montana: U.S. Geological Survey Professional Paper 729-G, 145 p.
2. ^ Yellowstone Caldera, Wyoming