Figure 30. A — Accumulation on flank of an anticline as a result of crestal cementa- 

 tion of producing strata. B — Trap resulting from terracing and updip cementa- 

 tion. C — Anticlinal accumulation of an overthrust sheet. D — Structural accumu- 

 lation in the npdip nonmarine section. E — Accumulation along an unconformity 

 and in solution cavities within a carbonate section. F — Anticlinal accumulation 

 above a non-piercement salt mass. G — Accumulation in a complexly folded re- 

 gion. H — Accumulation in thrust-fault areas. 



