SPECTRAL DECONVOLUTION OF THE ESR DATING SIGNAL IN FOSSIL TOOTH ENAMEL

被引：23

作者：

JONAS, M

机构：

[1] University of Cambridge, Cavendish Laboratory, Cambridge, CB3 OHE, Madingley Road

来源：

QUATERNARY SCIENCE REVIEWS | 1995年 / 14卷 / 04期

关键词：

D O I：

10.1016/0277-3791(95)00036-4

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

A quantitative method of deconvoluting the ESR dating signal in fossil tooth enamel into individual signals is presented. The method uses integrated ESR spectra. Two models give consistent results: the dating signal is a sum of four isotropic Gaussian signals or alternatively of two isotropic Gaussian signals plus an anisotropically split axial signal. A broad underlying isotropic signal at g = 2.007 is found independently of the model applied. The results indicate that past studies based on the overall peak-to-peak amplitude may overestimate the D-E (and thus the age) of enamel samples by about 15%.

引用

页码：431 / 438

页数：8

共 11 条

[1]

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[2] THE CONTRIBUTION OF CO33- AND CO2- TO THE ELECTRON-SPIN-RESONANCE SPECTRUM NEAR G = 2 OF POWDERED HUMAN TOOTH ENAMEL [J].