Show simple item record Li, Fuqiang Pan, Baotian Lai, Zhongping Gao, Hongshan Ou, Xianjiao 2018-08-08T13:08:02Z 2018-08-08T13:08:02Z 2018-04-10
dc.identifier.citation Li , F , Pan , B , Lai , Z , Gao , H & Ou , X 2018 , ' Identifying the degree of luminescence signal bleaching in fluvial sediments from the Inner Mongolian reaches of the Yellow River ' Geochronometria , vol. 45 , no. 1 , pp. 82-96 . en
dc.identifier.issn 1897-1695
dc.identifier.other PURE: 27106196
dc.identifier.other PURE UUID: d7e60ba1-d73a-4edd-a0ef-819b1aec5a5b
dc.identifier.other WOS: 000430839300001
dc.identifier.other Scopus: 85045921343
dc.identifier.other 2160/46847
dc.identifier.other ORCID: /0000-0003-2776-1099/work/47229017
dc.description.abstract The partial bleaching of the luminescence signal prior to deposition results in age overestimation, and can be a problem in delineating fluvial evolution within an OSL chronological framework. The Inner Mongolian reaches of the Yellow River are characterised by a high sediment load and complex sources of sediments. To test the incomplete bleaching occurring in this type of environment, the residual doses and the luminescence signal characteristics of different particle size fractions from 14 modern fluvial sediment samples were investigated. Furthermore, 26 OSL ages derived from drilling cores were compared with 11 radiocarbon ages. Our results show that the residual equivalent doses principally range between 0.16 and 0.49 Gy for silt grains, and between 0.35 and 3.72 Gy for sand grains of modern samples. This suggests that medium-grained quartz has been well bleached prior to deposition, and is preferable to coarse-grained quartz when dating fluvial sediments in this region. The results also show that the De values of coarse-grained fractions display a stronger correlation with distance downstream. In addition, a comparison of OSL and radiocarbon ages from drilling cores establishes further confidence that any initial bleaching of these sediments was sufficient. As a result, we believe that the studied fluvial samples were well bleached prior to deposition. en
dc.format.extent 15 en
dc.language.iso eng
dc.relation.ispartof Geochronometria en
dc.rights en
dc.subject Yellow River en
dc.subject OSL dating en
dc.subject partial bleaching en
dc.subject modern fluvial sediments en
dc.subject C-14 age en
dc.subject GROWTH-CURVE en
dc.subject YOUNG SEDIMENTS en
dc.subject SINGLE GRAINS en
dc.subject QUARTZ OSL en
dc.subject DEPOSITS en
dc.subject HOLOCENE en
dc.subject C-14 en
dc.title Identifying the degree of luminescence signal bleaching in fluvial sediments from the Inner Mongolian reaches of the Yellow River en
dc.type /dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article en
dc.description.version publishersversion en
dc.contributor.institution Department of Geography and Earth Sciences en
dc.description.status Peer reviewed en

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