Original published in D.F. Merriam, ed., 1964, Symposium on cyclic sedimentation: Kansas Geological Survey, Bulletin 169, pp. 449-459

Figure 4--Tectonic activity of adjoining mobile belts (upper plot) as indicated by spread of clastic wedges to cratonic margins, and tectonic activity of interior of craton (lower three plots) in terms of yoked basins, interior basins, and relative position with respect to base level.