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Stop 11 at Ries

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Bunte breccia at the Harburg quarry
Bunte breccia at the Harburg quarry
Photo: G. Osinski, University of Western Ontario
Location: 2 kilometers outside the southeast crater rim
Scale: Height of the cliff is 10 meters

This large active quarry at Harburg is one of the best places around the Ries structure to study the Bunte Breccia ejecta blanket. As we've discussed before, Bunte Breccia is an impact breccia that contains fragments of sedimentary rocks with some crystalline material, but no impact glass. At this location, we can see several meter-sized fragments and blocks of limestone, sandstone, and shale, all mixed together by the force of the impact event.

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