Journal article

Rapid trace element analysis of speleothems by ELA-ICP-MS

Jolyon M Desmarchelier, John C Hellstrom, Malcolm T McCulloch

CHEMICAL GEOLOGY | ELSEVIER SCIENCE BV | Published : 2006

Abstract

Excimer laser ablation inductively coupled plasma mass spectrometry (ELA-ICP-MS) has been used to analyse the concentration of Mg, Sr, Ba, and U along the outer wall of a soda-straw stalactite from southeastern Australia. The results of this study reveal high frequency oscillations superimposed upon longer-term trends in the data, in particular those of Sr/Ca and Ba/Ca. The high frequency oscillations in the trace elements are assumed to be annual and have been used to compile a chronology which agrees to better than 1% of an independent chronology based on dendrochronological counting of distinctive banding on the surface of the speleothem. The autocorrelation and dendrochronological method..

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