Allen Glazner is a geologist, educator and author with expertise in volcanoes, tectonics, geochemistry, and mountain building. He believes strongly that understanding how geology shapes the planet greatly enhances one’s enjoyment of the landscape and everything that lives on it. A native Southern Californian, Allen earned geology degrees from Pomona College and UCLA before embarking on a 38-year career at the University of North Carolina at Chapel Hill, where he is Distinguished Professor Emeritus.

Field studies have taken Allen to geologic sites all over the world, including Iceland, Alaska, Japan, the Caribbean, South Africa, Mexico, the Canadian Rockies, Australia, New Zealand, Italy, Sicily, Scotland, Switzerland, Patagonia, and the high Andes. An award-winning teacher, he has led dozens of field trips for groups ranging from the general public to academic specialists, and has trained astronauts and national park personnel in the field and classroom. In addition to over 150 academic papers and the 2025 textbook Petrology and Plate Tectonics, he has coauthored several books for the public including Geology Underfoot books on Death Valley, Yosemite National Park, and Southern California. 

Allen was a runner and now is an avid cyclist and hiker. He enjoys photography, especially landscape, aerial, and 3D-reconstructive. Reading, especially fiction, is one of his sedentary pursuits. See landscape photos and more at allenglazner.com.