Diagenesis of vascular plant organic matter components during burial in lake sediments
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چکیده
منابع مشابه
Diagenesis of Vascular Plant Organic Matter Components during Burial in Lake Sediments
Diagenetic changes are difficult to distinguish from variations in sources of organic matter to sediments. Organic geochemical comparisons of samples of wood, bark, and needles from a white spruce (Picea glauea) living today and one buried for 10,000 years in lake sediments have been used to identify the effects of diagenesis on vascular plant matter. Important biogeochemical changes are eviden...
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The molecular composition and origin has recently been demonstrated to play a critical role in the persistence of organic matter in lake water, but it is unclear to what degree chemical attributes and sources may also control settling and burial of organic matter in lake sediments. Here we compared the annual contribution of allochthonous and autochthonous sources to the organic matter settling...
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[1] Calculations based on recent observations indicate that approximately one third of the organic matter presently being buried in marine sediments may be of terrestrial origin, with the majority of this terrestrial organic matter (TOM) burial occurring in muddy, deltaic sediments. These calculations further suggest that the remineralization of terrestrial organic matter in the oceans is also ...
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ژورنال
عنوان ژورنال: Aquatic Geochemistry
سال: 1995
ISSN: 1380-6165,1573-1421
DOI: 10.1007/bf01025230