Organic matter in sediments

Sedimentary organic matter preservation: an assessment and ...

Almost all preserved organic matter has been incorporated in marine sediments deposited under oxygenated waters along continental margins.

Organic Matter in Sediments - SpringerLink

Organic matter in sediments has to be regarded as the residue of organic life, and is, in the geological sense, a fossil. An exception to this rule may be ...

Sedimentary organic matter - Wikipedia

The organic matter is usually a component of sedimentary material even if it is present in low abundance (usually lower than 1%). Petroleum (or oil) and natural ...

Sediment Organic Matter - MarineGEO

Sediment organic matter can be quantified using simple 'loss-on-ignition': the amount of organic material that is burned away at extremely high temperatures ...

Stability of sedimentary organic matter: Insights from molecular and ...

Here we show the molecular and redox perspectives of SOM stability in polluted sediments with high organic matter content and diverse vegetation.

Preservation of organic matter in marine sediments by inner-sphere ...

Interactions between organic matter and mineral matrices are critical to the preservation of soil and sediment organic matter.

Deposition of Organic Matter in Recent Sediments - GeoScienceWorld

Sediments in basins in general contain considerable organic matter; those on intervening ridges, little. Consequently diastrophism, by producing depressions ...

Sedimentary Organic Matter Shapes Macrofaunal Communities but ...

Our results suggest a relationship between resource availability and macrofaunal density, diversity, and taxonomic and trait composition.

Secondary production and priming reshape the organic matter ...

Organic matter (OM) in marine sediments is a pivotal component of the global carbon cycle (1, 2). Sedimentary OM predominantly originates from ...

Sedimentary Processes and the Accumulation of Organic Matter

The accumulation of organic matter in sediment is controlled by a number of geological boundary conditions. It is practically restricted to sediment ...

Sedimentary organic matter preservation - University of Washington

Throughout Earth history, almost all preserved organic matter has been incorporated in marine sediments deposited under oxygenated waters along continental ...

Mineralization of organic matter in boreal lake sediments

This study highlights the potential of mass balancing the products of OM mineralization to characterize labile substrates undergoing fermentation in sediments.

Spatial Distribution and Sources of Organic Matter in the Surface ...

Aquatic photosynthetic plants, especially phytoplankton, are the dominant organic matter source of surface sediments in Fuxian Lake. Decreases ...

Composition and vertical distribution of organic matter in Central ...

Sedimentary organic matter (SOM) is composed of labile and refractory compounds, and its distribution and dynamics are controlled by complex ...

Preservation of Organic Matter in Marine Sediments

Most organic matter buried in marine sediments is eventually transformed into kerogen during later stages of diagenesis and catagenesis, when ...

Assessing global-scale organic matter reactivity patterns in marine ...

Organic matter (OM) degradation in marine sediments is largely controlled by its reactivity and profoundly affects the global carbon cycle.

Organic matter sources to the water column and surficial sediments ...

The elemental and lignin compositions of the sediment trap and core samples indicate nitrogen-rich (atomic C : N ≅ 7.5) plankton-derived organic matter mixed ...

Preservation of organic matter in sediments promoted by iron

The biogeochemical cycles of iron and organic carbon are strongly interlinked. In oceanic waters, organic ligands have been shown to control ...

Constraining the origin of sedimentary organic matter in the eastern ...

This study establishes a background carbon database in the coastal environment that can be used in future studies of blue carbon to achieve carbon neutrality ...

Sediment organic matter and nutrients - OzCoasts