OSL chronology of a Palaeolithic site in a humid subtropical mountainous area of southeast China  

作　　者：JIN Jian-hui WANG Xiao-yang ZHOU Zhen-yu HUANG Yun-ming FAN Xue-chun ZUO Xin-xin LING Zhi-yong REN Yong-qing LI Shu-tong 

机构地区：[1]School of Geographical Sciences,Fujian Normal University,Fuzhou,350007,China [2]Center for Southeast environmental archaeology,Fujian Normal University,Fuzhou,350007,China [3]Fujian Institute of Archaeology,Fuzhou,350001,China [4]The institute of Archaeology,Chinese Academy of Social Sciences,Beijing,100710,China [5]School of Humanities,Minjiang University,Minhou,350108,China [6]Pingtan International Institute of Austronesian Archaeology,Pingtan,350400,China [7]Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xi’ning,810008,China

出　　处：《Journal of Mountain Science》2021年第8期2012-2023,共12页山地科学学报（英文）

基　　金：supported by National Natural Science Foundation of China(Grant Nos.41301012,42077407 and 41771020),Natural Science Foundation of Fujian Province,China(Grant No.2020J01185),and the Innovation Research Team Fund of Fujian Normal University(Grant No.IRTL1705).

摘　　要：The timing of Palaeolithic human activities in South China is still controversial because of the lack of a reliable chronology of archaeological sites.The Longdengshan Palaeolithic site(LPS),located close to the Wuyi Mountain of South China,represents the first discovered and scientifically excavated Middle Palaeolithic site in the Fujian Province.This site is of considerable significance for studying the diffusion and cultural connotation of early Homo sapiens in southern China.In this study,we present optically stimulated luminescence(OSL)ages obtained from medium-grained quartz collected at the LPS.The single-aliquot regenerative-dose measurements of red soil deposits collected at the same site yielded internally and stratigraphically consistent ages and similar errors,indicating a potential ability of the technique,and also reflecting the influence of various sedimentary facies on the test results.Our results indicate that the 38–63µm quartz grains were generally partially-bleached and had large values of over-dispersion in the palaeo-reticulated laterites of west Fujian.Some samples yielded unsatisfactory results,suggesting that the degree of bleaching of diluvial and alluvial deposits should be properly assessed before dating.We did not detect any enrichment/depletion of U,Th and radioactive disequilibrium.The effect of chemical weathering on the dose rate estimation was negligible.Therefore,we used a central age model and the maximum age model to calculate the age of two samples,respectively,and the minimum age model to calculate the ages of the rest of the samples.The OSL ages of the samples ranged from 27.09±2.30 ka to 54.65±7.39 ka for the 38–63µm quartz size fraction,and roughly corresponded to the Marine Isotope Stage 3.In addition,three ages out of five are based on the calculation of minimum ages in this research,which needs to be further verified by other dating methods.

关 键 词：OSL dating Palaeolithic site CHRONOLOGY Southeast China 

分 类 号：P597.3[天文地球—地球化学]