Lord Howe Island is the largest of a group of islands located due east of Port Macquarie in the Tasman Sea. The island is 700 km northeast of Sydney and is part of New South Wales. The coral reef and marine environments surrounding the island are internationally acclaimed, and marine parks have been declared in both the state and commonwealth waters around it. Lord Howe Island is all that remains of a large volcano that was active approximately 7 million years ago.
This map updates the 1987 Lord Howe Island Geology poster with new geomorphology and carbonate research, geochronological research and geological mapping. Side one is an extensively revised geological map of the island and surrounds, including subaqueous rock units. Side two provides detailed information and photographs of the geology of Lord Howe Island.
P.J. Gilmore, K.F. Bull and I. Hutton. 2022. Geology of Lord Howe Island with 1:15,000 scale map. Geological Survey of New South Wales, Maitland, Australia.