1. The dolente plug at Tievebulliagh, near Cushendall, Co. Antrim;Agrell;Proc. Roy. Irish Acad.,1958
2. Belfast Naturalists' Field Club 1874 Guide to Belfast and the Adjacent Counties
3. Bowen , N. L. 1928 The Evolution of the Igneous Rocks
4. The geology of North-East Ireland;Charlesworth;Proc. Geol. Ass.,1960
5. The Brockley dolerite plug and the Church Bay volcanic vent, Rathlin Island, Co. Antrim;Dawson;Irish Nat. J.,1951