Use of selective degradation to sep

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• journal_title：Geology
• Contributor：Gerard J.M. Versteegh ; Karin A.F. Zonneveld
• Publisher：Geological Society of America
• Date：2002-
• Format：text/html
• Language：en
• Identifier：10.1130/0091-7613(2002)030<0615:UOSDTS>2.0.CO;2
• journal_abbrev：Geology
• issn：0091-7613
• volume：30
• issue：7
• firstpage：615

摘要

<p id="p-1">The assessment of diagenetic influences on the sedimentary record is problematic despite its crucial importance for accurate environmental reconstruction and understanding of biochemical cycles. We propose a general applicable method that uses differences in degradation rates of organic components to separate degradation and productivity. We demonstrate this method on a southeastern Atlantic sediment core covering the past 145 k.y. The new method solves discrepancies between existing organic matter, silica- and carbonate-based productivity reconstructions, and emphasizes the importance of bottom- and pore-water characteristics for transformation of the sedimentary record. p>