Journal article
The geomorphology of the flanks of the Lord Howe Island volcano, Tasman Sea, Australia
DM Kennedy, BP Brooke, CD Woodroffe, BG Jones, C Waikari, S Nichol
Deep Sea Research Part II Topical Studies in Oceanography | Published : 2011
Abstract
The flanks of mid-ocean volcanoes are inherently unstable features especially in the constructional phase of development when the volcano is active. Lateral and vertical stresses are placed on the volcanic edifice as it builds, with the flanks continuing to be unstable up to at least 1Ma after volcanism has ceased. The flanks of the Lord Howe Island volcano record this period of greatest instability and a subsequent period in which marine and subaerial erosion have dominated its geomorphic evolution. Lord Howe Island lies in the Tasman Sea of the Southern Pacific region and is the subaerial remnant of a Miocene mid-ocean volcano. The island has only recently entered reef building seas and th..
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Funding Acknowledgements
The research was a collaboration between the University of Wollongong and Geoscience Australia using time provided on the National Facility Vessel R.V. Southern Surveyor to the project chief investigator Colin Woodroffe. The Captain and crew of the R.V. Southern Surveyor (2008) are especially thanked for their assistance at sea. Thanks to Geoscience Australia staff Cameron Buchanan and Michele Spinoccia for processing the multibeam sonar data, and Andrea Cortese and Richard Mleczko for gridding the data and generating the DEMs. Helen Neil (NIWA, New Zealand) is thanked for obtaining the oxygen isotope values. Funding for the radiocarbon dating was provided by Victoria University of Wellington and the Lord Howe Island Board and Lord Howe Island Marine Park Authority are thanked for permission to access the sites. Sampling was undertaken with permits issued by the Australian Government's, Department of the Environment, Water, Heritage and the Arts. This work has been partly funded through the Commonwealth Environment Research Facilities (CERF) programme, an Australian Government initiative supporting world class, public good research, as part of the CERF Marine Biodiversity Hub's Surrogates Programme.