|Table of Contents|

In-situ Cosmogenic 26Al and 10Be Depth Profile Method and Its Potentials for Dating Early Hominid Sites in China(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2008年03期
Page:
123-128
Research Field:
地理学
Publishing date:

Info

Title:
In-situ Cosmogenic 26Al and 10Be Depth Profile Method and Its Potentials for Dating Early Hominid Sites in China
Author(s):
Gao Bin; Zhao Zhijun
School of Geographical Sciences,Nanjing Normal University,Nanjing 210046,China
Keywords:
in s itu-produced cosm og en ic nuc lides;  quartz;  26A l and 10 Be depth profile me thod;  early hom inid sites
PACS:
P597.3
DOI:
-
Abstract:
The age dete rm ina tion of the early and m idd le Ple istocene hom in id sites bears important im plications fo r our understand ing of the or ig in and evo lution o f ear ly hum ans. In China, the key hom in id sites such as Xujiayao site and Yunx ianM an site, in m ost cases, lie in a lluv ium / fluv ia l deposits and so far have not been dated by radiom etr ic geochronolog ica lm e thod. W ith sign ificant improvem ent of AMS techn ique, in situ produced cosm ogen ic 26A l and 10 Be depth profilem e thod can be used to da te r iver terrace sedim ents ove rm illion-year tim e sca le. V ia this m ethod, we expect to fulfill the rad iom e tric “ temporal gap”of som e im po rtant hom in id s ites in Ch ina. Th is pape r addresses the basic theory o f the m ethod and v iew s its app lication potentia ls

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Last Update: 2013-05-05