Structural Traps

Structural traps

hold oil and gas because the earth has been bent and deformed in some way. The trap may be a simple dome (or big bump), just a "crease" in the rocks, or it may be a more complex fault trap like the one shown at the right.

Strat_Trap_2.gif (8496 bytes)

Stratigraphic traps are depositional in nature. This means they are formed in place, usually by a sandstone ending up enclosed in shale. The shale keeps the oil and gas from escaping the trap.



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