In two distal carbonate turbidites (labelled a and e) from the Madeira Abyssal Plain oxidation
of organic matter (OM) has been accompanied by a reduction in Hydrogen Index (HI) and …

The amount and type of organic matter in the sediments of lakes and oceans contribute to
their paleoenvironmental and paleoclimatological records. Only a small fraction of the initial …

Use of sedimentary organic carbon concentrations as a record of paleoceanographic
conditions is complicated by an insufficient understanding of the mechanisms controlling …

Substantial information regarding the history and source of organic matter and transfer of
both carbon nitrogen to and within marine environments lies in the chemical and isotopic …

The organic carbon cycle on Earth is divided into two parts (Fig. 4.1; Tissot and Welte 1984).
The biological cycle starts with photosynthesis of organic matter from atmospheric carbon …

Benthic incubation chambers and sediment pore water profiles were used to study early
diagenesis of organic matter in equatorial Pacific sediments. Replicate measurements with a …

Terrestrial organic matter (OM) in pelagic sediments is discussed with regard to depositional
processes and land-sea interactions in the modern and past glacial/interglacial Equatorial …

Porewater and solid phase geochemical data at two contrasting NE Atlantic stations are
reported. Station 10552, on the Cape Verde abyssal plain, is a site of slow pelagic …

Stable isotopes of sedimentary nitrogen and organic carbon are widely used as proxy
variables for biogeochemical parameters and processes in the water column. In order to …

The carbon isotopic composition of the organic matter in fluvial sediments and in fluvial
suspended matter falls in the range valid for continental organic matter (− 25 to− 28‰). The …