If there are no steam vents at the earth's surface to release the pressure of the powerful force that lies beneath, its only outlet comes in the form of an eruption.
The reverse faults that extend to the surface in some high and steep structural zones can cause pressurerelease and hydrocarbon emission.
部分高陡构造带上“通天”破裂逆断层出现压力释放和油气大量散失的现象。
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In the BEM model, the radiation impedance boundary condition at air intake surface is used and the results demonstrate that it is superior to the traditional pressurerelease boundary.