Andrew Hurst, Antony T. Buller; Dish structures in some Paleocene deep-sea sandstones (Norwegian Sector, North Sea); origin of the dish-forming clays and their effect on reservoir quality. Journal of Sedimentary Research ; 54 (4): 1206–1211. doi: https://doi.org/10.1306/212F859E-2B24-11D7-8648000102C1865D
The clay mineralogy of dish-structured sandstones supports the intrastratal, rather than the interstratal, redistribution of clays during the formation of dish structures. Authigenic Fe-chlorite is the predominant constituent clay mineral in the dish structures. Interbedded mudstones comprise illite/smectite with minor illite and chlorite. Dish-structured horizons cause a marked reduction in average vertical permeability.