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Petroleum Geology

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Fault Trap

The next type of structural trap that we will discuss is the fault trap. These are formed by the movement of rock along a fault line. These fault lines allow oil to flow in. Clay material between the walls traps the oil, prohibiting it from leaving(Sun Machinery). This is known as a fault gouge (The Paleontological). Fault traps are very common in the North Sea Basin between Norway and Britain.

faulttrap.gif
http://www.priweb.org/ed/pgws/systems/traps/structural/structural.html#anticline