--> Figure 19

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Figure 19. Distribution of Delle Phosphatic Member (modified from Sandberg and Gutschick, 1984). Delle Phosphatic Member of the Deseret Limestone could be the dominant source rock during this time slice. The Delle on the hanging wall of the Nebo thrust would likely be “over cooked” but should be in an optimum thermal regime in the central area. Note that the Chainman Shale is restricted to western Utah and eastern Nevada, and is not likely a viable source for the Mississippian oil in central Utah. 

Click to view in sequence Figures 18 and 19 (distribution of Manning Canyon Shale and Delle Phosphatic Member).