Climate change during the Late Pleistocene indicated by major elements of “old red sand” in Keren section at Jinjiang， Fujian Province
Zhao Qian1，2，3 Hu Fangen1，2，3 Li Zhizhong1，2，3，4 Chen Xiuling1，2，3 Jin Jianhui1，2，3 Zhang Hui1，2，3
1 Institute of Geography，Fujian Normal University，Fuzhou 350007，Fujian 2 School of Geography Science，Fujian Normal University，Fuzhou 350007，Fujian 3 Key Laboratory of Humid Subtropical Ecosystem and Geography，Ministry of Education，Fuzhou 350007，Fujian 4 State Key Laboratory of Loess and Quaternary Geology，Institute of Earth Environment，CAS，Xi′an 710075，Shaanxi
Abstract This paper focuses on the research of “old red sand” section of Keren in southeast coast of Fujian Province. We analyzed the content of major elements and ratios of oxide in Keren section，and found that：（1）The old red sand was mainly composed of wet-type elments such as SiO2，Al2O3 and Fe2O3，and their content range change as 68.88％～93.77％，9.03％～19.1％，and 2.14％～5.32％，respectively.Dry-type elements such as CaO、Na2O and MgO，whose content are all below 0.5％，only the content of K2O is a bit higher than 2％，showing intensely eluviated.（2）Since the Late Pleistocene，the history of climate change recorded by Keren section can be divided into 4 stages，they are cold-dry，warm-wet，colder-dryer and warm-wet climates.And the major deposition phases of coast eolian sand took place under cold-dry climate during 55.9-43.9 ka BP and 27.0～10.8 ka BP，which had a lower sea level and strong winter monsoon environment.However，during 43.9～27.0 ka BP and since 10.8 ka BP，the climate significantly became warm and humid，also，which had a higher sea level.So，in these phases，the earlier deposition of coast a eolian sand experienced a strong weathering and reddening process.
About author: Zhao Qian，born in 1989，is a master candidate.She is mainly engaged in geomorphology and the Quaternary environment. About the corresponding author Li Zhizhong，born in 1962，is a professor and doctoral supervisor of Fujian Normal University，and is mainly engaged in aeolian geomorphology and the evolution of the Quaternary environment.
Cite this article:
Zhao Qian,Hu Fangen,Li Zhizhong et al. Climate change during the Late Pleistocene indicated by major elements of “old red sand” in Keren section at Jinjiang， Fujian Province[J]. JOURNAL OF PALAEOGEOGRAPHY, 2012, 14(5): 663-672.
Zhao Qian,Hu Fangen,Li Zhizhong et al. Climate change during the Late Pleistocene indicated by major elements of “old red sand” in Keren section at Jinjiang， Fujian Province[J]. JOPC, 2012, 14(5): 663-672.
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