Carbohydrates in waters and sediments

The book is devoted to study of diagenetic changes of organic matter and mineral part of sediments and interstitial waters of the Pacific Ocean due to physical-chemical and microbiological processes. Microbiological studies deal with different groups of bacteria. Regularities of quantitative distribution and the role of microorganisms in geochemical processes are under consideration. Geochemical studies highlight redox processes of the early stages of sediment diagenesis, alterations of interstitial waters, regularities of variations in chemical composition of iron-manganese nodules.

Chemical composition of organic matter in ocean sediments

Group composition of organic matter in recent ocean sediments with high Corg content has been studied in detail. It has been shown that organic matter in sediments with Corg content greater than 4% is present in the very earliest stages of transformation. Group composition of amino acids is practically similar to that of their main producer, namely phytoplankton. Organic matter of sediments with Corg content below 4% is, from this standpoint, more transformed and is close to organic matter in usual type sediments with similar Corg content.