Optical dating of abrupt shifts in the late Pleistocene East Asian monsoon

Research Article| May 01, 2008 Optical dating of abrupt shifts in the late Pleistocene East Asian monsoon Thomas Stevens; Thomas Stevens * 1School of Earth Sciences and Geography, Centre for Earth and Environmental Science Research, Kingston University, Penrhyn Road, Kingston upon Thames, Surrey KT1 2EE, UK *E-mail:T.Stevens@kingston.ac.uk. Search for other works by this author on: GSW Google Scholar Huayu Lu; Huayu Lu 2School of Geographical and Oceanographical Sciences, Nanjing University, Nanjing 210093, China Search for other works by this author on: GSW Google Scholar David S.G. Thomas; David S.G. Thomas 3School of Geography, Oxford University Centre for the Environment, Parks Road, Oxford OX1 3QY, UK Search for other works by this author on: GSW Google Scholar Simon J. Armitage Simon J. Armitage 4Department of Geography, Royal Holloway, University of London, Egham, Surrey TW20 0EX, UK Search for other works by this author on: GSW Google Scholar Geology (2008) 36 (5): 415–418. https://doi.org/10.1130/G24524A.1 Article history received: 18 Oct 2007 rev-recd: 28 Jan 2008 accepted: 06 Feb 2008 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Thomas Stevens, Huayu Lu, David S.G. Thomas, Simon J. Armitage; Optical dating of abrupt shifts in the late Pleistocene East Asian monsoon. Geology 2008;; 36 (5): 415–418. doi: https://doi.org/10.1130/G24524A.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Chinese loess is regarded as one of the most detailed and complete terrestrial archives of late Cenozoic climate change. However, high-resolution optically stimulated luminescence (OSL) dates presented here reveal that the suborbital chronological framework of Chinese loess used in many previous climate reconstructions requires reassessment. Chronological uncertainty of as much as 10–15 k.y. for the late Pleistocene is largely a result of the widespread use of nonradiometric dating techniques that fail to account for site-specific depositional conditions associated with loess emplacement and diagenesis. OSL-based age models that account for these processes are used to examine detailed records of past sedimentation, as well as grain size and magnetic susceptibility proxies for late Pleistocene East Asian monsoon variation. Abrupt shifts in monsoon proxies occur over 102–103 yr time scales, potentially forced by a variety of factors and influenced by site location and site-specific changes in sedimentation. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.