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In chapter 4 we concluded that sea level fluctuations are but one of several ways to generate sequences and systems tracts. This claim is based on a sedimentologic evaluation of sequence anatomy. Where sea level does exert the dominant control on sequence stratigraphy, sedimentology must be called upon again, this time to assess the differences of the sea-level records of depositional systems. Siliciclastics and carbonates are the two most prominent examples that come to mind, but evaporites, too, have their specific ways of recording sea level. Depositional systems resemble newspapers that all report on the events of the day, but each with different editorial bias. It behooves the reader to learn about the editorial bias of his paper. Similarly, the geologist ought to know about the bias of depositional systems in recording changes of sea level (and other environmental factors). Below, we discuss some peculiarities of carbonates vis a vis siliciclastics.

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