"The geological revolution (Lecture 1)"


Charles L. Drake



Streaming Media


24th Annual Condon Lecture


50 minutes


Dr. Drake, a professor of earth science at Dartmouth University, was most well-known for his role in the scientific debate over the disappearance of the dinosaurs. In the first of two lectures, Drake discussed the problem of the active belts of the earth's crust, some of which exhibit compressional features, while others exhibit tensional features. Dr. John Allen, founder of the Portland State University Department of Earth Sciences (later Geology), provided the introduction. A second lecture followed. [Note: Original audio cuts of for 3 minutes during Dr. Allen's introduction]

Transferred and preserved by Portland State University Library’s Special Collections with the generous support of the Institute of Museum and Library Services through the Library Services and Technology Act, administered by the Oregon State Library.



Original Format

Reel to reel, 3.75 ips, 2 track, mono


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