Sampling a 50,000-year-old lava from in the Springerville volcanic field, Arizona

By Yellowstone Volcano Observatory June 2025 (approx.)

Two men examine a vertical outcrop of gray rock about twice their height, with brown grass at their feet and blue sky above

Detailed Description

USGS geologist Mark Stelten and San Jose State University student and USGS student contractor Darrian Ellis-Hardin collect a sample of an approximately 50,000 year old lava flow from the Springerville volcanic field. USGS photo by Dawnika Blatter, June 2025.

Sources/Usage

Public Domain.

Sampling a 50,000-year-old lava from in the Springerville volcanic field, Arizona

Detailed Description

Sources/Usage

Yellowstone Volcano Observatory (YVO)

Dawnika L. Blatter, PhD

Volcano Petrologist