OLLI Talks (Online) Geology of the Northern Colorado Front Range in Larimer County

This lecture is designed to give non-geologists an overview of the Geology of the Northern Colorado Front Range in Larimer County. The exposed rock units that constitute the foundation of our spectacular scenery were formed, altered, and eroded by various geologic processes over the last 1.75 billion years.  A few of the geologic features we will discuss include the Virginia Dale Ring Dike complex, the granite exfoliation domes of RMNP, and the hogbacks, and folded rock units along our foothills.  If you are new to Northern Colorado or to Osher or just want to gain an understanding of the character, distribution, origin, and age of the exposed rock units, this lecture may be for you.  

Dr. Frank Ethridge, professor emeritus at Colorado State University, worked as a geologist with the U.S. Army Corps of Engineers, the Texas Highway Commission, and Chevron Oil.  He taught geology at Southern Illinois University and Colorado State University for a total of 35 years.  During this time, Frank also conducted geology courses and led field trips for geological societies and petroleum companies.  He and his graduate students completed several research projects on modern rivers and ancient river deposits.  He has a long-term interest in the variability and complexity of modern rivers and has lectured extensively on this topic.

Notes

• A current OLLI membership is required to register for all courses and lectures.
• If you do not have a current Spring 2021 membership, one will be added to your cart at check-out.
• OLLI membership fees and course tuition are critical to the Institute’s sustainability and are non-refundable.

Testimonials

“Frank provides an excellent science class for non-scientists. He uses lay terms and good explanations for an accessible class. He allows for good interaction about the topic.”

“Frank Ethridge's classes are always excellent! He is a very enthusiastic and fun instructor.”