A sound understanding of the global carbon cycle requires an appreciation of the various physico-chemical and biological processes that determine the production, distribution, deposition and diagenesis of organic matter in the natural environment. This book is a comprehensive interdisciplinary synthesis of this information, coupled with an organic facies approach based on data from both microscopy and bulk organic geochemistry.
Inhaltsverzeichnis
1 Introduction: The importance of sedimentary organic matter. - 2 The nature of organic matter in sediments. - 3 Production and delivery flux of planktonic organic matter. - 4 Biological degradation and consumption of organic matter. - 5 Abundance of organic matter in sediments: TOC, hydrodynamic equivalence, dilution and flux effects. - 6 Organic matter preservation: the effects of oxygen deficiency. - 7 Origin and nature of the Phytoclast Group. - 8 Origin and nature of the Amorphous Group. - 9 Origin and nature of the Palynomorph Group, Phytoplankton Subgroup. - 10 Origin and nature of the Zoomorph Subgroup, and the origin, nature and distribution of the Zooclast Group. - 11 Distribution of the Phytoclast Group. - 12 Distribution of the Amorphous Group. - 13 Distribution of the Palynomorph Group: Sporomorph Subgroup. - 14 Distribution of the Palynomorph Group: Phytoplankton Subgroup, marine dinoflagellate cysts (dinocysts). - 15 Distribution of the Palynomorph Group: Phytoplankton Subgroup, marine prasinophyte phycomata. - 16 Distribution of the Palynomorph Group: Phytoplankton Subgroup, chlorococcale algae. - 17 Distribution of the Palynomorph Group: Phytoplankton Subgroup, Acritarcha. - 18 Distribution of the Palynomorph Group: Phytoplankton Subgroup, cyanobacteria and Rhodophyta. - 19 Distribution of the Palynomorph Group: Zoomorph Subgroup. - 20 Palynological kerogen classification. - 21 Bulk geochemical characterization and classification of organic matter: elemental analysis and pyrolysis. - 22 Bulk geochemical characterization and classification of organic matter: carbon:nitrogen ratios and lignin-derived phenols. - 23 Bulk geochemical characterization and classification of organic matter: stable carbon isotopes (? 13C). - 24 Palynofacies in a sequence stratigraphic context. - 25Some practical aspects of palynofacies analysis. - Appendix A Density of particulate organic matter and kerogen and some associated materials. - Appendix C Carbon:nitrogen weight ratios of organic matter and some Recent and ancient sediments. - Appendix D Prasinophyte occurrences in dysoxic anoxic facies of Silurian to Quaternary age (in stratigraphic order).
