This scientific study of the geology of Riley County, Kansas, provides a detailed analysis of the composition and structure of the region's igneous rocks. The author, a prominent geologist and petrologist, uses a variety of analytical techniques to examine the mineral content and texture of the rocks, as well as their geological history. The book includes detailed maps and diagrams, as well as extensive descriptions of the various rock formations. This book is essential reading for anyone interested in the geology of the Midwest region of the United States.

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