1. Anderson, J. G.1971. The geology of the Bennachie granite mass, central Aberdeenshire. B.Sc thesis Geol. Dept. Univ. Aberdeen (unpubl.).
2. Bruce, D. 1973. The geology of the Gardenstown area, B.Sc. thesis Geol. Dept. Univ. Aberdeen (unpubl.).
3. On some dykes in east Aberdeenshire;Bughan;Trans Edinb geol Soc,1932
4. Grant F. S. West G. F. (1965) Interpretation theory in applied geophysics (McGraw-Hill, New York), p 583.
5. THE PLUS-MINUS METHOD OF INTERPRETING SEISMIC REFRACTION SECTIONS*