A rapid sediment pulse induced by glacial melting during the MIS 8/7e transition buried well-developed karst in the Railton Valley, Tasmania, Australia

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dc.contributor.authorSlee, Aen_AU
dc.contributor.authorMcIntosh, PDen_AU
dc.contributor.authorWoodward, CAen_AU
dc.contributor.authorWang, NSen_AU
dc.contributor.authorGadd, PSen_AU
dc.date.accessioned2021-12-22T20:16:58Zen_AU
dc.date.available2021-12-22T20:16:58Zen_AU
dc.date.issued2021-08-16en_AU
dc.date.statistics2021-12-17en_AU
dc.descriptionAdvance copy in Boreas.en_AU
dc.description.abstractRecent catastrophic sinkhole collapse caused by regional water table lowering induced by quarrying has led to the partial exhumation and reactivation of a buried karst cave system in the floor of the Railton Valley in the lowlands of northern Tasmania, Australia, and widespread sinkhole development. Extensive silty sediments exposed in sinkholes, OSL dated to approximately 237 ka, are interpreted to be lacustrine deposits derived from rapidly deposited glacial outwash. The silty sediments have mineralogy consistent with derivation from a source in the upper Mersey catchment rather than locally and are interpreted to be the product of rapid melting of the Mersey Valley glacier during the MIS 8/7e transition. Thick Last Glacial alluvial fan and Holocene flood-plain deposits mantle the lacustrine sediments. Exposures of glacial erratics and weathered till in streambeds provide further evidence that the valley was impacted by earlier Pleistocene glaciations. © 2021 The Boreas Collegium. Published by John Wiley & Sons Ltden_AU
dc.identifier.citationSlee, A., McIntosh, P. D., Woodward, C., Wang, N., & Gadd, P. (2021). A rapid sediment pulse induced by glacial melting during the MIS 8/7e transition buried well‐developed karst in the Railton Valley, Tasmania, Australia. Boreas, 51(1), 185-200. doi:10.1111/bor.12538en_AU
dc.identifier.issn1502-3885en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleBoreasen_AU
dc.identifier.pagination185-200en_AU
dc.identifier.urihttps://doi.org/10.1111/bor.12538en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12647en_AU
dc.identifier.volume51en_AU
dc.language.isoenen_AU
dc.publisherJohn Wiley & Sons, Incen_AU
dc.subjectSedimentsen_AU
dc.subjectValleysen_AU
dc.subjectWater tablesen_AU
dc.subjectCavesen_AU
dc.subjectGlaciersen_AU
dc.subjectTasmaniaen_AU
dc.subjectAustraliaen_AU
dc.titleA rapid sediment pulse induced by glacial melting during the MIS 8/7e transition buried well-developed karst in the Railton Valley, Tasmania, Australiaen_AU
dc.typeJournal Articleen_AU
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