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Unformatted text preview: at constant rate through time C. Superposition 1. Sedimentary rocks form on flat surfaces; continental shelf--margin of the continent; is most well represented sedimentary environment (globally) 2. Young sediments are deposited on old sediments 3. Environments change in predictable ways (uniformitarianism) ex. braided stream ---> meandering stream beach ----> estuaries eroding mountains (sediments in grain size) coarse ---> fine grain D. Paleoenvironmental information 1. deltas ------> continental margin sediments beaches 2. shallow water (oxygen) plant growth -----> fossils animal community...
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- Spring '99
- Sediment, 4.5 billion years, Continental margin sediments, Professor Furman