LPL Field Trip Fall 2021

LPL Field Trip Fall 2021

The Chiricahua Mountains: Igneous Processes and Planetary Analogs
by Christopher Hamilton
The LPL Graduate Field Trip (PTYS 590) resumed this semester with a three-day trip to the Chiricahua mountains in southeast Arizona. All participants were vaccinated and—while travelling in vehicles and on trails where social distancing was not possible—students always wore masks.
 

On the first day of our trip, we travelled to Texas Canyon, where we visited the Triangle T Guest Ranch and exceptional granite outcrops with spherical weathering. Folks at the ranch kindly let our group explore the rock formations and guided us to see exceptional Native American petroglyphs. We then visited Willcox Playa and hiked to Fort Bowie to learn more about the region’s cultural history. The next day, we explored Chiricahua National Monument, including ancient volcanoes with spectacular hoodoo formations eroded into the 27-million-year-old Turkey Creek ignimbrite deposit. Our group of sixteen visited Massai Point, hiked the "Echo Canyon Trail," and climbed to the top of Sugarloaf to see the exceptional geologic history exposed within the walls of the valley.

For the final day or our trip, we crossed into Cave Creek Canyon, which is the largest and most biologically diverse canyon in the region. We then visited the Chiricahua Desert Museum and explored monogenetic volcanoes in San Bernardino Volcanic Field, which include exceptional mantle xenoliths. On the way home to Tucson, we enjoyed the final student presentations with ice cream in Tombstone. After two-years, it was great to explore the beautiful geology and cultural history of the Southwest again, and students are looking forward to exploring the Mojave Desert next semester with Professor Shane Byrne.

You can support the LPL field trip with a gift to the Wilkening-Sill endowment.