Chalk, limestone, shale, and sandstone are all examples of sedimentary rocks. All these different sedimentary rocks are formed from the broken remains of other rocks that become joined together.

Mudstone, shale, and limestone are examples of sedimentary rock likely to contain fossils. As the layers of sediment build up on top of one another, they create a physical timeline. The oldest layers, ...

Oak Park is a 9-acre park situated on one of the many sedimentary rock ledges ... close view of the beautiful ledges made of sandstone, limestone, shale and coal. It's a great spot for experienced ...