Holocene record of gradual, catastrophic and human influenced environmental change at Moashitu wetland, D'Urville Island, New Zealand

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dc.contributor.authorCope, Jen_AU
dc.contributor.authorChagué-Goff, Cen_AU
dc.contributor.authorMooney, SDen_AU
dc.contributor.authorGoff, JRen_AU
dc.contributor.authorZawadzki, Aen_AU
dc.contributor.authorWong, HKYen_AU
dc.contributor.authorKilroy, Cen_AU
dc.contributor.authorJacobsen, GEen_AU
dc.contributor.authorDominey-Howes, Den_AU
dc.date.accessioned2020-06-15T00:37:45Zen_AU
dc.date.available2020-06-15T00:37:45Zen_AU
dc.date.issued2012-01-31en_AU
dc.date.statistics2020-06-01en_AU
dc.description.abstractActive tectonism, sea level fluctuation and human arrival have moulded the present day physical environment of New Zealand. Coastal wetlands are recognised archives of Holocene environmental changes. By applying sedimentological, geochemical and chronological techniques to coastal wetlands, natural and anthropogenic changes can be observed. Moawhitu Wetland, located on D’Urville Island, New Zealand, is home to a Maori oral tradition that describes a giant wave destroying a community in the 15th century. Little geological work has been carried out to investigate the evidence of the event and no studies have researched the palaeoenvironmental history of the area. This research was therefore aimed at reconstructing the Holocene environmental record at Moawhitu Wetland to determine if there was evidence of severe changes to the landscape as described in Maori oral traditions. Three sedimentary sequences from Moawhitu Wetland were used to reconstruct a 7500 year record that incorporated gradual, catastrophic and human influenced changes. The record was established by using multiple sedimentary proxies (grainsize, organic matter content, geochemistry and mineralogy) at three different sites that were temporally aligned with dating techniques (14C and 210Pb) . Barrier formation, lake and wetland formation, erosion, human influences and a tsunami ~3000-3300 yr BP were identified in the sedimentary record. These changes were applied to a broader spatial context from which inferences of sea level rise, regional faulting and potential climate change were drawn. The central west coast of New Zealand has undergone an array of short and long term environmental changes throughout the Holocene and can be identified as an area susceptible to potential tsunami events.en_AU
dc.identifier.citationCope, J., Chagué-Goff, C., Mooney, S., Goff, J., Zawadzki, A. Wong, H., Kilroy, C., Jacobsen, G., & Dominey-Howes, D. (2012). Holocene record of gradual, catastrophic and human influenced environmental change at Moashitu wetland, D'Urville Island, New Zealand. Paper presented at the AMOS 18th International Conference, "Connections in the Climate Systems", University of New South Wales, Sydney, 31 Jan to 3 Feb 2012.en_AU
dc.identifier.conferenceenddate3 February 2012en_AU
dc.identifier.conferencenameAMOS 18th International Conference, 'Connections in the Climate Systems'en_AU
dc.identifier.conferenceplaceSydney, NSWen_AU
dc.identifier.conferencestartdate31 January 2012en_AU
dc.identifier.govdoc9659en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/9654en_AU
dc.language.isoenen_AU
dc.publisherAustralian Metrological & Oceanographic Societyen_AU
dc.subjectQuaternary perioden_AU
dc.subjectSedimentary basinsen_AU
dc.subjectNatural disastersen_AU
dc.subjectHuman populationsen_AU
dc.subjectEnvironmental impactsen_AU
dc.subjectWetlandsen_AU
dc.subjectNew Zealanden_AU
dc.subjectSea levelen_AU
dc.subjectGeochemical surveysen_AU
dc.subjectCarbon 14en_AU
dc.subjectTsunamisen_AU
dc.titleHolocene record of gradual, catastrophic and human influenced environmental change at Moashitu wetland, D'Urville Island, New Zealanden_AU
dc.typeConference Posteren_AU
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