Holocene OSL Chronology of Flu-Lacustrine Sediments in Yangtze River Basin, Wuhan Area, China-Reference-Cited by-同舟云学术

Holocene OSL Chronology of Flu-Lacustrine Sediments in Yangtze River Basin, Wuhan Area, China

Published:2021-01-01 Issue:1 Volume:48 Page:284-293
ISSN:1897-1695
Container-title:Geochronometria
language:en
Short-container-title:

Author:

Wei Chuanyi¹,Zhang Huasong¹,Li Chang’an¹²,Zhang Yufen³,Li Yawei¹,Jia Mingming¹,Li Guoqing¹,Leng Yonghui¹

Affiliation:

1. School of Earth Sciences , China University of Geosciences , Wuhan , China

2. Hubei Key Laboratory of Critical Zone Evolution , China University of Geosciences , Wuhan , China

3. Institute of Geophysics and Geomatics , China University of Geosciences , Wuhan , China

Abstract

Abstract Wuhan area located middle Yangtze River Basin, is dominated by East Asian Monsoon. Widely developed Holocene flu-lacustrine sediments are ideal materials for the reconstruction of paleoclimate change and geo-environment evolution, for which the chronology is a key issue. In this study, 20 luminescence dating samples were collected from a flu-lacustrine sequence and the reliability of the quartz OSL dating to these samples were checked by using luminescence characteristics of dose recovery test and thermos transfer test. Our results indicate that different grain size fraction of 4∼11 μm, 38∼63 μm, and 90∼125 μm were well-bleached before burial. Dating results show that all these ages range from 0.8 ± 0.1 to 7. 9 ± 0.7 ka between 4.25 and 38.55 m, and most of them follow the stratigraphic sequence and other climatic recorder within the normal range of error. Disordered OSL ages may be caused by complicated transport-deposit processes. As a consequence, OSL dating method of SAR-SGC protocol could provide a significant chronology for Holocene flu-lacustrine sediment in large river depo-system.

Publisher

Walter de Gruyter GmbH

Subject

Earth and Planetary Sciences (miscellaneous)

Link

https://www.sciendo.com/pdf/10.2478/geochr-2020-0012

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