Mark Stelten

Mark Stelten

Mark Stelten has conducted research on magmatic systems since 2008 with an emphasis on geochronology and geochemistry. He has worked on a variety of volcanic and plutonic systems over the course of his career. Prior to working with the U.S. Geological Survey, he conducted research on the Tuolumne Intrusive Suite in Yosemite National Park, the South Sister volcano in Oregon and the Yellowstone Plateau Volcanic Field in Wyoming.

roadcut exposure on Huckleberry Ridge Tuff and Mesa Falls Tuff

Ashton to Island Park: 2.1 million years of Idaho’s volcanic history in 30 minutes

By: - March 27, 2023

When people think of Yellowstone, they typically think of Yellowstone National Park, complete with its spectacular geysers and hot springs, abundant wildlife and stunning volcanic features that attract millions of visitors each year. Volcanic features within the park largely reflect the recent geologic history of Yellowstone (well, recent in a geologic sense) over the past […]

Bison in Yellowstone National Park

What Yellowstone National Park’s changing magmatic system has taught us over the past 631,000 years

By: - October 24, 2022

Yellowstone National Park hosts a large magma reservoir that was the source of some of the largest volcanic eruptions in Earth’s recent past. The current magma reservoir is located beneath Yellowstone Caldera, which is a large basin-shaped depression in the Earth’s surface that formed during eruption of the Lava Creek Tuff about 631,000 years ago. […]