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- '''Figure 49''' Stage 1: Deposition of the Delafield Member as a series of coalescing deltas during the onset of a glacial stage as the sea level began to fall. The product is a thick succession of clastic rocks that coarsen upward. +
- '''Figure 50''' Stage 2: Channel incision of delta sediments. +
- '''Figure 51''' Stage 3: The Galatia channel developed a meander belt. +
- '''Figure 52''' Stage 4: The change to a humid climate caused the Springfield peat to begin to form. +
- '''Figure 53''' Stage 5: Springfield peat accumulates across a large area of the basin. +
- '''Figure 54''' Stage 6: A warming climate brought rapid melting of the glaciers and a sea-level rise. The Galatia channel became an estuary, subject to strong tidal currents. +
- '''Figure 55''' Stage 7: Peat swamps drowned as the estuary became an embayment. Dykersburg sediments rapidly buried the peat. +
- '''Figure 56''' Stage 8: As the transgression continued apace, the entire basin area was submerged in deep water, which became stratified and anoxic, and black mud (Turner Mine Shale) was deposited. +
- '''Figure 57''' Stage 9: Normal marine circulation resumed near the apex of an interglacial stage (marine highstand), bringing a brief interlude of carbonate sedimentation (St. David Limestone). +
- '''Figure 58''' Stage 10: Marine regression begins the next cycle. +