Explore the architecture and sediment distribution of exhumed basin margin successions in this 52-minute lecture from Seds Online. Delve into the world of clinothems, the fundamental components of basin margin successions, and their three physiographic segments: shelf, slope, and basin floor. Examine how sedimentary transition zones, such as the shelf-edge rollover and base of slope, provide crucial information about accommodation versus sediment supply balance and sedimentary process interactions. Focus on the Karoo Basin in South Africa as a case study, which offers rare exposure of complete clinothem records. Learn how to characterize topset-foreset-bottomset deposits, locate sedimentary transition zones, and analyze facies distribution along and across depositional dips. Investigate the sequence stratigraphy of margins transitioning from erosional to accretionary dominance. Discuss broader implications for stratigraphic models of basin evolution, including asymmetric subsidence, fine-grained sediment distribution, and long-term climatic changes. Explore additional topics such as petrographic studies, trace fossils, large-scale muddy bed forms, and evidence for tidal influence in these ancient depositional systems. Read more