C-14 ACTIVITY IN DIFFERENT SECTIONS AND CHEMICAL-FRACTIONS OF OAK TREE RINGS, AD 1938-1981

被引：34

作者：

OLSSON, IU ^{[1
]}

POSSNERT, G ^{[1
]}

机构：

[1] UNIV UPPSALA,SVEDBERG LAB,S-75121 UPPSALA,SWEDEN

来源：

RADIOCARBON | 1992年 / 34卷 / 03期

关键词：

D O I：

10.1017/S0033822200064055

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The C-14 activity in rings from an oak tree grown in a suburb of Uppsala, Sweden has been studied for the period, AD 1938 to 1981. We compare the results with the atmospheric carbon dioxide records from Abisko, northern Sweden, where local or regional contamination from fossil-fuel combustion can be disregarded. We assess the influence from different chemical pretreatment procedures in use and compare HCl-NaOH-HCl treatment with cellulose extraction. We split each ring into two samples corresponding to early (spring) and late wood. A more refined partitioning has been applied to the years 1963 and 1964.

引用

页码：757 / 767

页数：11

共 24 条

[1]

[Anonymous], NATURE

[2] CARBON 14 IN TREE RINGS [J].