Abstract
Abstract Lake beach ridges and their sediments have been investigated as palaeoenvironmental records. Robust chronology is crucial to utilize this archive for palaeoenvironmental reconstruction and interpretation. This study investigates the optically stimulated luminescence (OSL) dating of quartz in two beach ridges of aeolian origin from Xingkai Lake (NE Asia). The applicability of the selected measurement procedure is validated by a set of internal tests on luminescence characteristics such as preheat plateau test and dose recovery test, and the reliability of the resulting 24 OSL ages are also confirmed by agreement with four 14C ages as well as two K-feldspar luminescence dates. The constructed chronologies are thought to be robust in the stratigraphic and geomorphologic context. The two aeolian beach ridges (B1 and B2) are dated to ∼32–15 ka and ∼1.2–0.5 ka, respectively, which are interpreted as two distinct periods of lake lowstand that could have caused beach exposure and provided a more extended sand source for foredune formation around Xingkai Lake. These two lowstands could be correlated to the dry/cold regional climate including the time span from late MIS3 to late glacial and the most recent one at the late Holocene.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
