Molecular characteristics of sedimentary organic matter in ...

This study provides a better understanding on the influence of nature of SOM, in regulating sedimentary mercury (Hg) and elemental mercury (Hg 0 ) distribution.

Molecular characteristics of sedimentary organic matter in ... - PubMed

Sediment Hg showed more affinity towards the SOM of high MW. Increasing MW of SOM increased total sedimentary HgT in both the estuaries. SOM ...

Sediment Hg showed more affinity towards the SOM of high MW. Increasing MW of SOM increased total sedimentary HgT in both the estuaries. SOM with low MW in the ...

Characteristics of Sedimentary Organic Matter in Tidal Estuaries

Results show that sedimentary organic components were negatively correlated with sediment grain size, which indicates fine particles such as silt and clay are ...

Molecular characterization of suspended and sedimentary organic ...

Some fatty acids, phytadienes, and n-alkylnitriles were assigned to planktonic organisms. Pyrolysis products from terrigenous material encountered in the river ...

Novel insight into arsenic enrichment in aquifer sediments under ...

In this study, we characterized the optical and molecular characteristics of SOM coupled with organic geochemical signatures to illustrate in ...

Biogeochemical Characteristics of Sedimentary Organic Matter in ...

Four short sediment cores were collected to explore the impacts of bay scallop farming on the composition and accumulation of sedimentary organic matter ...

Molecular Traits of Dissolved Organic Matter in the Subterranean ...

Here, freshly produced marine organic matter and oxygen mix with groundwater, which is low in oxygen and contains aged organic carbon (OC) from terrestrial ...

Depth profile of molecular characteristics of dissolved organic matter...

... the deeper sediment layers, the overall DOM characteristics (markedly low H/C and high aromaticity, Fig. 3, Table S9) indicate a higher degree of biological ...

Characteristics of Sedimentary Organic Matter in Tidal Estuaries

The source, composition and spatial distribution of OM in surface sediments of MRE were deciphered based on multiple organic geochemical properties for source- ...

Organic matter in sediments | Geochemistry Class Notes - Fiveable

Sedimentary organic matter undergoes complex transformations through diagenesis , kerogen formation, and thermal maturation . Understanding ...

Molecular Traits of Dissolved Organic Matter in the Subterranean ...

In addition, recirculating seawater was found to leach and transport DOM from particulate marine organic matter buried in the sediment (Kim et ...

Sedimentary organic matter Research Papers - Academia.edu

Striking similarities and sharp contrasts exist between the geochemistries of organic matter in surface soils and marine sediments. The contrasts result in part ...

Sedimentary organic matter preservation - University of Washington

fusive sublayer (~ 0.5 mm) of the sediment surface, which can have chemical properties decidedly differ- ent than the overlying bottom waters where O₂ is.

How do early diagenetic processes affect the molecular ... - NASA ADS

Sediments represent a large reservoir of nutrients and natural organic matter (NOM) from diverse inputs in various proportions. Indeed, sedimentary OM is ...

Sedimentary organic matter - Wikipedia

Sedimentary organic matter includes the organic carbon component of sediments and sedimentary rocks.

The unique biogeochemical role of carbonate-associated organic ...

The particulate organic matter buried in carbonate-rich seagrass ecosystems is an important blue carbon reservoir. While carbonate sediments ...

(PDF) Sedimentary organic matter preservation: an assessment and ...

More than 90% of total sedimentary organic matter from a wide variety of marine depositional environments cannot be physically separated from its mineral matrix ...

Molecular characterization of dissolved organic matter in pore water ...

The associated sedimentary OM was addition- ally characterized via lipid biomarkers and lignin phenols, which are both routinely used for the ...

Sedimentary Organic Matter

... organic matter characteristics, a special chapter on the deposition of the ... chemical reaction definition equations examples types - Apr. 30 ...