Mudrocks, mudstone, and shale comprise about 65% of all sedimentary ... There are several great nearby places to see geology for yourself, whether you're interested in collecting Late Ordovician ...

Understanding geology is critical to studying paleontology because fossils ... where sediment is likely to bury them and shelter them from scavengers and decay. Mudstone, shale, and limestone are ...

The geology of the Don catchment varies considerably. The map below shows the underlying bedrock of the catchment, mainly comprised of mudstone and sandstone, but with strips of limestone and dolomite ...