County: Riley

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Photographer: John Charlton/KGS

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Short description: Kimberlite trench in Riley County. Kimberlite is one of only two igneous rocks (formed from molten magma that pushes toward the surface from Earth's interior) found at the surface in Kansas. It forms in vertical structures in Earth's crust called kimberlite pipes.

Hi-Resolution Version

Credit: This photo may be reproduced for non-commercial and educational purposes. When using this photo in a publication, website, or presentation, please credit Kansas Geological Survey. For information about use for commercial purposes, please contact the KGS editor.