1. Blatt H, Middleton G, Murray R (1972) Origin of sedimentary rocks. Prentice-Hall, New Jersey
2. Blatt H, Tracy RJ, Owens BE (2006) Petrology: igneous, sedimentary and metamorphic, 3rd edn. W.H. Freeman and Co, New York
3. Chatzidimitriadis E, Tsirambides A, Theodorikas S (1993) Clay mineral abundance of shales and slates from some Greek regions through geologic time. Proc Acad Athens 68:144–161
4. Deer WA, Howie RA, Zussman J (1982) Rock–forming minerals, Orthosilicates. Longmans, London
5. Deer WA, Howie RA, Zussman J (1998) An introduction to the rock–forming minerals, 2nd edn. Addison Wesley, Essex