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dc.contributor.authorN. Eden, Dennisen_US
dc.contributor.authorHammond, Andrewen_US
dc.date.accessioned2017-05-03T16:59:04Z
dc.date.available2017-05-03T16:59:04Z
dc.date.issued2003en_US
dc.date.modified2009-11-24T05:25:04Z
dc.identifier.issn02773791en_US
dc.identifier.doi10.1016/S0277-3791(03)00168-9en_AU
dc.identifier.urihttp://hdl.handle.net/10072/26836
dc.description.abstractLoess is widespread in New Zealand; deposits > 1 m thick cover 10% of the land area. It has mainly been derived from dust deflated from river floodplains during the last glacial maximum (LGM). Dust accumulation continues today downwind of major river floodplains. Most loess is quartzofeldspathic, having its origins in Mesozoic and Neogene rocks of the axial ranges and hill country. In the central North Island there are deposits of volcanic loess derived from aeolian reworking of tephras. Loess morphology and properties vary greatly due to diverse parent materials, post-depositional climates and drainage conditions. The widespread 26,170 cal. yr Kawakawa Tephra provides a datum for calculating mass accumulation rates (MARs). Rates are mostly within the range 70-150 g m-2yr-1, but enhanced deposition at one site gave a rate of 360 g m-2yr1-. Contemporary MARs of 40-100 g m-2yr-1 were determined for distances of 1.75-0.4 km downwind of the Rakaia River. LGM MARs of quartz for two marine cores (P69 & Q858) drilled 100-300 km east of New Zealand are 40-70 g m -2yr-1. The MAR of the aeolian component of P69 is estimated to be ca 15 g m12yr-1en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherElsevieren_US
dc.publisher.placeNetherlandsen_US
dc.relation.ispartofpagefrom2037en_US
dc.relation.ispartofpageto2052en_US
dc.relation.ispartofissue18-19en_US
dc.relation.ispartofjournalQuaternary Science Reviewsen_US
dc.relation.ispartofvolume22en_US
dc.subject.fieldofresearchGeology not elsewhere classifieden_US
dc.subject.fieldofresearchcode040399en_US
dc.titleDust accumulation in the New Zealand region since the last glacial maximumen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.date.issued2003
gro.hasfulltextNo Full Text


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