Alternatively, sedimentary rocks take shape when the tiny, weathered fragments of stones are compacted and cemented together. The process begins when rocks, minerals and organic materials — such as ...

However, once rocks or fossils become much older than that, ... Sometimes sedimentary rocks are disturbed by events, such as fault movements, that cut across layers after the rocks were deposited.

Understanding geology is critical to studying paleontology because fossils are preserved in rock. The characteristics of the rocks that hold fossils can be as informative as the fossils themselves.

The geology of the Oxford, Ohio area includes (but is not limited to) the following rocks and features: Limestone Southwestern Ohio's limestone (a sedimentary rock) is saturated with life — life from ...

The fossils of this rock sequence are commonly found in ancient Archean chert, a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz. 5.

Anita Evans/Courtesy of Friends of Youth and Nature. Searching for fossils in the sedimentary rock layers at the Dominquez- Escalante National Conservation Area located between Grand Junction and ...

Sometimes sedimentary rocks are disturbed by events, such as fault movements, that cut across layers after the rocks were deposited. This is the principle of cross-cutting relationships .