How is the distance to (or form) shore of sea changing in this area as sherburne was being deposit?

As Sherburne was being deposited, the distance to shore of the sea was progressively shifting. During the initial stages of Sherburne's deposition, the sea was situated further inland, resulting in a shorter distance between the shore and the deposition site. Over time, as Sherburne continued to accumulate and the landmass extended further seaward, the distance to the shoreline gradually increased, thereby pushing the sea further away from the depositional area.