Литология и фациальный анализ
Геологические науки и горное дело
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Catuneanu O. Principles of Sequence Stratigraphy
Elsevier, 2006, p. 375

Sequence stratigraphy analyzes the sedimentary response to changes in base level, and the depositional trends that emerge from the interplay of accommodation (space available for sediments to fill) and sedimentation. Sequence stratigraphy has tremendous potential to decipher the Earth’s geological record of local to global changes, and to improve the predictive aspect of economic exploration and production. For these reasons, sequence stratigraphy is currently one of the most active areas of research in both academic and industrial environments. ‘Principles’ of sequence stratigraphy are to a large extent independent of the type of depositional environments established within a sedimentary basin (e.g. , siliciclastic vs. carbonate), and clastic systems are generally used by default to explain and exemplify the concepts. However, the difference in stratigraphic responses to changes in base level between clastic and carbonate systems is discussed in the book, and the departure of the carbonate sequence stratigraphic model from the ‘standard’ model developed for clastic rocks is examined. The principles of sequence stratigraphy are also independent of scale. The resolution of the sequence stratigraphic work can be adjusted as a function of the scope of observation, from subdepositional system scales to the scale of entire sedimentary basin fills. Between these end members, processes that operate over different spatial and temporal scales are interrelated. The sequence stratigraphic framework of facies relationships provides a template that allows one to see how smaller-scale processes and depositional elements fit into the bigger picture. As such, sequence stratigraphy is an approach to understanding the 4D development of sedimentary systems, integrating cross-sectional information (stratigraphy) with plan-view data (geomorphology) and insights into the evolution of sedimentation regimes through time (process sedimentology). Any of these ‘conventional’ disciplines may show a more pronounced affinity to sequence stratigraphy, depending on case study, scale, and scope of observation. The application of the sequence stratigraphic method also relies on the integration of multiple data sets that may be derived from outcrops, core, well logs, and seismic volumes. Even though widely popular among all groups interested in the analysis of sedimentary systems, sequence stratigraphy is yet a difficult undertaking due to the proliferation of informal jargon and the persistence of conflicting approaches as to how the sequence stratigraphic method should be applied to the rock record. This book examines the relationship between such conflicting approaches from the perspective of a unifying platform, demonstrating that sufficient common ground exists to eliminate terminology barriers and to facilitate communication between all practitioners of sequence stratigraphy. The book is addressed to anyone interested in the analysis of sedimentary systems, from students to geologists, geophysicists, and reservoir engineers.
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