PERIODIC VARIATION IN NATURAL RADIOACTIVITY OF LAKE BOUCHET SEDIMENTS

被引：9

作者：

XANTHAKIS, J ^{[1
]}

LIRITZIS, I ^{[1
]}

GALLOWAY, RB ^{[1
]}

机构：

[1] UNIV EDINBURGH,DEPT PHYS,EDINBURGH EH8 9YL,MIDLOTHIAN,SCOTLAND

来源：

EARTH MOON AND PLANETS | 1992年 / 59卷 / 03期

关键词：

D O I：

10.1007/BF00054051

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Low level counting of alpha and beta particles has been carried out on a 5 long sediment core from the take La Bouchet in France, spanning the past around 24 000 years. A total of around 60 data points were spectrally analysed with the successive approximations method. Several whole or quasi-periodicities were located for the two radioactivity data sets, in different time intervals; for the alpha counting, periods of 1000-1200, 2000, 6000 and 24000 years and for the beta counting periods of 1000, 3000, 4000, 8000 and 24 000 years were obtained. The non-stationarity nature of the obtained periods are discussed in relation to (a) palaeoclimatic fluctuations impact on mineral carrying natural radiosotopes partitioning of the sediment deposition of the last glacial and (b) other solar-terrestrial agents.

引用

页码：191 / 200

页数：10

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