Estimates of eroded material based on vitrinite-reflectance data from Newark basin. Red ines are contour lines showing estimated amount of eroded syn-rift strata in kilometers. N is the location of the Nursery core, used to calculate the reflectance/depth trend for all erosion estimates. The amount of erosion generally is least adjacent to the border-fault system on the NW side of the basin and greatest on the SE side. Cross section based on interpretation of NB-1 seismic line uses black bars to indicate the amount of eroded syn-rift material. Modified from Withjack et al. (2013) and Malinconico (2010).