Sequence stratigraphy of C and M factories
The discussion of sequence stratigraphy started in chapter 6 by examinig the standard model and its observational support based largely on siliciclastics. Chaper 7 introduced carbonate sequence stratigraphy with a detailed look at the T factory - the best known carbonate system and the most productive one. The present chapter deals with the sequence stratigraphy of the C and M factories. It does so by high-lighting differences to the T factory. This is not to say, however, that the principles of marine carbonate production out-lined in chapters 2 and 7 are no longer valid simply because they are not discussed at length here. In the C and M factories, just as in the T factory, sediment is largely produced by organic activity within the depositional setting. Environmental factors therefore strongly influence the sediment type and the rate of production. Consequently, environmental change is a major competitor of sea-level change in shaping the sequence record.
Figures & Tables
Sedimentology and stratigraphy are neighbors yet distinctly separate entities within the earth sciences. Sedimentology searches for the common traits of sedimentary rocks regardless of age as it reconstructs environments and processes of deposition and erosion from the sediment record. Stratigraphy, by contrast, concentrates on changes with time, on measuring time and correlating coeval events. Sequence stratigraphy straddles the boundary between the two fields. This book, dedicated to carbonate rocks, approaches sequence stratigraphy from its sedimentologic background. This book attempts to communicate by combining different specialities and different lines of reasoning, and by searching for principles underlying the bewildering diversity of carbonate rocks. It provides enough general background, in introductory chapters and appendices, to be easily digestible for sedimentologists and stratigraphers as well as earth scientists at large.