Introduction Some other day, I thought that I need to post a small blogger note. It should describe the spatial extent of a sequence stratigraphic unit. In my experience, it has been an common misunderstanding in communication and interpretation. If one interprets a systems tract over 100s of kilometers with the same nature (e.g. regression), then other will sub-divide it into several strike oriented systems tracts. Well, I will not go that deep but will simply say, "all sequence stratigraphic units are site-specific just like lithostratigraphic units. " Sequence stratigraphy has an advantage because it defines time-based units e.g. base level rise/fall. The main objective of this post is to show my personal opinions on the present day example taken from Louisiana Holocene continental shelf (N. America) . See the figure below. Supply vs. Accommodation vs. Shoreline Trajectories: In the figure above, what do you learn? Increasing sedimentation of Ho
Open discussion for fun!