University of Wollongong Research Online University of Wollongong Thesis Collection University of Wollongong Thesis Collections 2002 The development of rock coast morphology on Lord Howe Island, Australia Mark Edward Dickson University of Wollongong Recommended Citation Dickson, Mark Edward, The development of rock coast morphology on Lord Howe Island, Australia, Doctor of Philosophy thesis, School of Geosciences, University of Wollongong, 2002. http://ro.uow.edu.au/theses/1987 Research Online is the open access institutional repository for the University of Wollongong. For further information contact the UOW Library:
[email protected] THE DEVELOPMENT OF ROCK COAST MORPHOLOGY ON LORD HOWE ISLAND, AUSTRALIA A thesis submitted in fulfilment of the requirements for the award of the degree of DOCTOR OF PHILOSOPHY from UNIVERSITY OF WOLLONGONG by MARK EDWARD DICKSON (BSc. Hons, Massey University) SCHOOL OF GEOSCIENCES UNIVERSITY OF WOLLONGONG 2002 This work has not been submitted for a higher degree at any other academic institution and, unless otherwise acknowledged, is my own work. Mark Edward Dickson Lord Howe Island, southwest Pacific 1 Abstract Lord Howe Island, situated 600 km east of Australia, provides a unique opportunity to study the development of rock coast landforms and the long-term planation of an oceanic island. The island is a remnant of a large shield volcano that was built by late-Miocene hotspot volcanism. Since this time, the island has gradually migrated northward into warmer seas, and marine planation, operating at a decreasing rate over time, has reduced the island to a vestige of the original volcano. Lord Howe Island currently lies at the southern limit to coral growth.