A method for the extraction of carbonaceous particles from lake sediment |
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| Authors: | N L Rose |
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| Institution: | (1) Palaeoecology Research Unit, Department of Geography, University College London, 26 Bedford Way, WC1H OAP London, England |
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| Abstract: | The methods found in the literature for the extraction of carbonaceous particles from lake sediment are discussed. The technique used by Griffin & Goldberg (1975) on Lake Michigan sediments was improved by modifying the procedure to halve the extraction time and reduce the risk of fragmentation. This method was then applied to a sediment core taken from Loch Tinker in Western Scotland, which had previously been analysed using the Renberg & Wik method. Although the basic trends for both methods are the same, the new method is found to be more sensitive to low particle numbers and more accurate, due to a more efficient extraction and a higher magnification for microscope counting. |
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| Keywords: | carbonaceous particles extraction methods lake sediment Loch Tinker |
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