Major changes in the concentration and composition of organic matter occur in the upper
layers of aquatic sediments [see chapters by Hedges and Prahl (Chapter 11), Macko, Engel …

Early diagenesis is the combination of biological, chemical, and physical processes which
change the quantity and composition of the organic matter in the upper several hundred …

The water-sediment interface is an intense heterotrophic reactor through which organic
matter must pass if it is to be preserved in sediments. The term" water-sediment interface" is …

Over geologic time one out of every five carbons preserved in sediments has been organic
and now occurs primarily as kerogen in marine shales (Berner, 1989). This mass of …

This volume is the direct result of an SEPM Research Conference held in October 1983 at
Lost Valley Ranch, Colorado. The goal of the volume is to bring attention of the …

The kinetics of sulfate reduction and inorganic nutrient production (ΣCO 2, ammonium, and
phosphate) were examined in the sediments at five sites in the southern Chesapeake Bay …

Many of the reactions and biogeochemical processes that occur in the marine environment
are related directly or indirectly to the mineralization of organic matter. Decomposition of …

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 …

Detailed analyses of organic materials in soils, recent sediments, and natural waters
invariably indicate the presence of complex mixtures of organic molecules (Eglinton and …

Publisher Summary This chapter discusses the degradation of organic matter by a suite of
redox processes in marine sediments, with an emphasis on the effect on pore water …