On June 5, 2017, a convoy of vans and SUVs drove west from El Paso, Texas, and crossed into New Mexico, headed to a location about 20 miles southwest of Las Cruces. Leaving the pavement behind, we bumped along single-file on dirt roads, marking our way with a trail of GPS “breadcrumbs” and stopping occasionally to let the lagging vehicles catch up. Our destination: a geologist’s wonderland called the Potrillo volcanic field.
New Mexico is home to an impressive number and variety of volcanoes, spread over the state from top to bottom. Among them is the Potrillo volcanic field, a now-dormant region in the New Mexico portion of the Chihuahuan Desert. My team spent 10 days in June 2017 at Potrillo, visiting ancient craters and gently sloping shield volcanoes.
Our team chose Potrillo because it combines the maar craters formed by explosive volcanism with the shield volcanoes formed by effusive volcanism. This makes it a perfect analog site for testing the kinds of instruments that future explorers might use to investigate volcanic areas on the Moon, Mars and other rocky planets or moons. We brought an array of instruments to map the topography of this terrain and to investigate the mineral composition and chemistry of the volcanic features here.
One of our destinations in the Potrillo volcanic field was the crater called Kilbourne Hole, shown in this fly-over footage taken by our unmanned aerial vehicle. Music in this short video was provided by Killer Tracks. NASA/GSFC/UTEP.
I’m Jake Bleacher from NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and I led this trip. The group included planetary geologists from NASA Goddard; Stony Brook University in Stony Brook, New York; the University of Texas, El Paso; Johnson Space Center in Houston; and other institutions. This team is part of RIS4E, short for Remote, In Situ, and Synchrotron Studies for Science and Exploration, a five-year project led by Timothy Glotch of Stony Brook University. RIS4E is funded by NASA’s Solar System Exploration Research Virtual Institute, or SSERVI, which promotes collaboration linking science to human exploration.
The Goddard Instrument Field Team, as a part of the RIS4E Project, explores Kilbourne Hole, a maar crater in the Potrillo volcanic field in New Mexico.NASA/GSFC
Helping me document the trip for NASA were Elizabeth Zubritsky, who worked with me on these blog entries, and two members of Goddard’s video team, David Ladd (producer) and Rob Andreoli (videographer).