U-series dating applied to speleothems from Los Covachos Cave, South of Spain

被引：0
|
作者：
J. M. Alcaraz-Pelegrina
A. Martínez-Aguirre
J. Rodríguez-Vidal
机构：
[1] Universidad de Córdoba,Departamento de Física, Facultad de Ciencias
[2] EUITA,Departamento de Física Aplicada I
[3] Universidad de Sevilla,Departamento de Geología
[4] Universidad de Huelva,undefined
[5] Campus de La Rábida,undefined
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2013年 / 298卷
关键词：
U–Th dating; Speleothem; Los Covachos Cave;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
U-series dating method is applied to speleothems from Los Covachos Cave in the south of Spain. A combination of solvent extraction method with ion-exchange resins is used for uranium and thorium isotopes. Uranium concentrations are low and for younger samples correction by detrital contamination is necessary. Ages obtained range from 30 to 135 ky with a hiatus between 50 and 80 ky BP. Changes in uranium isotopes activity ratios indicate a change in climatic conditions.
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页码：87 / 94
页数：7
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