Just E. of Ballintoy Harbour, Co. Antrim. Looking E. Upper Chalk and Tertiary dolerite intrusions just east of Ballintoy Harbour, Co. Antrim. Intrusive plug of Bendoo on right-hand side with chalk stack in centre. Sheep Island still in centre middle distance with Rathlin Island on horizon. View facing east from small cave 200 yd. south-east of Ballintoy Harbour.
Old photograph number: NI00317
Port Reostin. Looking NE. Spaniard Rock and Chimney Tops. Five flows of dark-weathering Lower Basalts seen above sea level and below the Interbasaltic Bed which outcrop along the path. The overlying irregularly columnar lowest two flows of the Tholeiitic Basalts are seen to the right, the Chimney Tops being the columnar base of the second flow.
Date taken: 01/05/1959
Old photograph number: NI00290
Irish Harp and Chimney Tops. Looking S. The footpath cut in the Interbasaltic Bed underlies the irregular columns of the first flow of the tholeiitic basalts. The isolated columns of the Chimney Tops are part of the second flow and a small part of the third flow is seen at the cliff top.
Date taken: 01/01/1969
Old photograph number: NI00712
Posted by Bob McIntosh
Giant's Causeway. Looking SE. Columnar jointing in tholeiitic basalt. The columns are usually from five to seven sided with ball and socket cross-joints.
Old photograph number: NI00708
Giant's Causeway. Looking SE. Columnar tholeiitic basalt, showing ball and socket cross-jointing. The cross-joints are upward and downward facing in apparently random pattern.
Old photograph number: NI00706
Giant's Causeway. Looking N. The Middle Causeway. Columnar tholeiitic lava.
Old photograph number: NI00710
Bob McIntosh
