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Show how a Stratigraphical Sequence can be Deduced. How can Fossils be Used to Tell the Relative Age
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Show how a Stratigraphical Sequence can be Deduced. How can Fossils be Used to Tell the Relative Age "Stratigraphy is the key to understanding the Earths crust and it's materials, structure and past life." "Within geology the study of time is the study of Stratigraphy." The earth's crust consists of bodies of rocks that can be divided into two groups: layered and unlayered. Layered rock bodies are described as stratified and unlayered are described as massive. The most common example of stratified rocks are sedimentary rocks. These have been built up by layer upon layer of sediments, some of which will be vastly similar and in some cases will have changed in character rapidly. Three basic principles must be recognised before a stratified rock sequence can be analysed. Firstly we must accept superposition that states that when a layer of rock was forming the layer beneath it...
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