The state of Arizona and its picturesque landscapes have been shaped by a geological history of volcano eruptions across the region. Some of the oldest volcanic rocks in the state are 1.8 billion ...

FLAGSTAFF — Just 30 minutes from downtown Flagstaff, Sunset Crater Volcano National Monument offers a striking look at northern Arizona’s explosive past. The cinder cone, now standing over 8,000 feet ...

Volcanoes and contact metamorphism (existing rocks exposed to magma) have played an important role in the geologic history and diverse mineral composition of Arizona. From 1.8 billion years ago during ...

The annual Quey Hebrew Memorial Lecture at Brigham Young University will host a special guest speaker from the U.S. Geological Survey Thursday, March 10, at 7 p.m. in 2084 Jessie Knight Building.

FLAGSTAFF, Ariz. — Before Neil Armstrong and Buzz Aldrin knew they would be the first to walk on the moon, they took crash courses in geology at the Grand Canyon and a nearby impact crater that is the ...

In building Discovery Tours, one of the biggest delights has been exploring how we can share the history and deep-time processes of the rocks beneath our feet. Visit the particle-smashing Large Hadron ...