Reworked palynomorphs and their use in the determination of sedimentary cycles

The Permian-Triassic sequence in the subsurface of Israel was deposited" "near the margin of the Arabian craton, which was a major source for both" "reworked organic and inorganic detritus. Three major depositional cycles" "are identified in this sequence, each consisting of a transgressive interval" "and a regressive interval. Analysis of the stratigraphic variation in the" "amounts of reworked palynomorphs indicates that they are most abundant in" "regressive intervals. This is considered to be a result of changes in the" "extent of exposed land, which was the source for the reworked palynomorphs," "or of changes in the transportational regime. Stratigraphic variation in the" "abundance of reworked organic detritus may be useful for identifying depositional" "cycles that are not otherwise evident in the rock record.