4Shanely K W, Mccabe P J. Perspective on the sequence stratigraphy of continental strata. AAPG Bulletin, 1994,78 (4) :544 -568.
5Reidun Kleven,Jorolf Alstad. Interaction of alkali ,alkaline earth and sulPhate ions with clay minerals and sedimentary rocks. Journal of petroleum Science and Engineering, 15 (1996) : 181 - 200.
