摘要：

Microbial Processes and Ecosystems.- Microbial Processes in the Sulfur Cycle Through Time.- The Organic Geochemistry of Benthic Microbial Ecosystems.- Microbiological Oxidation and Reduction of Iron.- The Morphological and Chemical Record of the Precambrian Biosphere.- The Pre-Phanerozoic Fossil Record.- Precambrian Evolutionary Genetics.- Content and Isotopic Composition of Reduced Carbon in Sediments.- Composition of Kerogen and Hydrocarbons in Precambrian Rocks.- Prebiotic Synthesis of Organic Compounds.- Biological Processes and the Formation of Mineral Deposits.- Stratified Sulfide Deposition in Modern and Ancient Environments.- Banded Iron-Formation: Distribution in Time and Paleoenvironmental Significance.- Variations in the Distribution of Mineral Deposits with Time.- Sedimentary Balance Through Geological Time.- Group Photo: Sedimentary Iron Deposits, Evaporites and Phosphorites.- Sedimentary Iron Deposits, Evaporites and Phosphorites.- State of the Art Report.- Group Photo: Stratified Sulfide Deposits.- Stratified Sulfide Deposits.- State of the Art Report.- Group Photo: Reduced Carbon Compounds in Sediments.- Reduced Carbon Compounds in Sediments.- State of the Art Report.- Group Photo: Biogeochemical Evolution of the Ocean-Atmosphere System.- Biogeochemical Evolution of the Ocean-Atmosphere System.- State of the Art Report.- List of Participants.- Author Index.

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