abstract:Pericline is a form of albite exhibiting elongate prismatic crystal. Pericline twinning is a type of crystal twinning which show fine parallel twin laminae typically found in the alkali feldspars sanidine, microcline and albite.
The accumulation of deep gas is controlled by the volcanicapparatus, whichconsists of 3elements: volcanic plateau, periclineandcrater, all having clearseismicreflectivecharacteristics.