Aggregate
Mining quartzite bedrock | Mining river gravel | Concrete |
Mining quartzite bedrock for aggregate. Near Baraboo, Wisconsin. The nested cones of recently sorted
material makes a good example of the Angle of Repose.
Gravel mining operation on edge of Chippewa River, Wisconsin.
Concrete: a combination of aggregate and cement! Image is about 20 cm across.
Return to Resources
Return to images
Return to Geology page
Return to home page