An improved method for extracting marine sediment fractions and its application to Sr and Nd isotopic analysis
Bayon, G.; German, C.R.; Boella, R.M.; Milton, J.A.; Taylor, R.N.; Nesbitt, R.W.. 2002 An improved method for extracting marine sediment fractions and its application to Sr and Nd isotopic analysis. Chemical Geology, 187 (3-4). 179-199. 10.1016/S0009-2541(01)00416-8
Full text not available from this repository.Abstract/Summary
The radiogenic isotopic composition of both detrital and Fe–Mn fractions in marine sediments can be used in paleoceanography to infer changes of bottom-water circulation. We have examined various chemical techniques for the analysis of Sr and Nd isotope ratios in these fractions and present a robust method that can be used to separate both the Fe–Mn oxides and the detrital fraction from a marine sediment sample for isotopic analysis. Our sequential leaching procedure involves the use of 10% acetic acid, followed by 1 M hydroxylamine hydrochloride in 25% acetic acid to remove the carbonate component and the Fe–Mn oxide fraction, respectively. The applicability of our chemical procedure is illustrated with examples from a marine sediment core raised from the northern Cape Basin, southeast Atlantic Ocean.
Item Type: | Publication - Article |
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Digital Object Identifier (DOI): | 10.1016/S0009-2541(01)00416-8 |
ISSN: | 0009-2541 |
Additional Keywords: | PALAEOCEANOGRAPHY, FERROMANGANESE OXIDES, STRONTIUM ISOTOPES, NEODYMIUM ISOTOPES, GEOCHEMISTRY |
Date made live: | 10 Jun 2004 +0 (UTC) |
URI: | https://nora.nerc.ac.uk/id/eprint/106044 |
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