Stratigraphy, timing and climatic implications of glaciolacustrine deposits in the middle Rakaia Valley, South Island, New Zealand.

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dc.contributor.authorShulmeister, Jen_AU
dc.contributor.authorThackray, GDen_AU
dc.contributor.authorRieser, Uen_AU
dc.contributor.authorHyatt, OMen_AU
dc.contributor.authorRother, Hen_AU
dc.contributor.authorSmart, CCen_AU
dc.contributor.authorEvans, DJAen_AU
dc.date.accessioned2010-08-23T00:46:51Zen_AU
dc.date.available2010-08-23T00:46:51Zen_AU
dc.date.issued2010-08en_AU
dc.date.statistics2010-08en_AU
dc.description.abstractStratigraphic interpretations and infrared stimulated luminescence (IRSL) ages document the glacial history of the Middle Rakaia Gorge section of the Rakaia Valley, Canterbury, New Zealand, during the last two glacial cycles. Sheets of glaciolacustrine sediments several tens of metres in thickness can be traced at least 10 km upstream of the Rakaia Gorge. The stratigraphic package is capped by outwash gravels associated with the last glacial maximum (LGM) advances. The dominant inferred sedimentary environments in the sequence are 1) pro-glacial and paraglacial lake beds, 2) sub-aqueous ice-contact fans, 3) sub-aqueous mass flow deposits 4) supraglacial dump material and 5) outwash gravels. Syndepositional deformation, associated with glacitectonic deformation, is common. The stratigraphy records glacier margin oscillations, including six significant advances. These occurred in early MIS 6, mid-MIS 6, MIS 5b (c100–90 ka), MIS 5a/4 (c 80 ka), mid-MIS 3 (c 48 ka), and late MIS 3 (c 40ka). All the post-MIS 6 advances can be corroborated from other sites in New Zealand and the timings appear to coincide with both Southern Hemisphere insolation minima and maxima, suggesting variable combinations of climatic forcing in New Zealand glaciation. © 2010, Elsevier Ltd.en_AU
dc.identifier.citationShulmeister, J., Thackray, G. D., Rieser, U., Hyatt, O. M., Rother, H., Smart, C. C., & Evans, D. J. A. (2010). Stratigraphy, timing and climatic implications of glaciolacustrine deposits in the middle Rakaia Valley, South Island, New Zealand. Quaternary Science Reviews, 29(17-18), 2362-2381. doi:10.1016/j.quascirev.2010.06.004en_AU
dc.identifier.govdoc2466en_AU
dc.identifier.issn0277-3791en_AU
dc.identifier.issue17-18en_AU
dc.identifier.journaltitleQuaternary Science Reviewsen_AU
dc.identifier.pagination2362-2381en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.quascirev.2010.06.004en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/2285en_AU
dc.identifier.volume29en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectStratigraphyen_AU
dc.subjectNew Zealanden_AU
dc.subjectLuminescenceen_AU
dc.subjectGlaciersen_AU
dc.subjectClimatic changeen_AU
dc.subjectTiming propertiesen_AU
dc.titleStratigraphy, timing and climatic implications of glaciolacustrine deposits in the middle Rakaia Valley, South Island, New Zealand.en_AU
dc.typeJournal Articleen_AU
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