Patterns of Change in Earth Evolution

Evolutionary Radiations and Extinctions.- Large Body Impacts Through Geologic Time.- Sudden Changes in Atmospheric Composition and Climate.- Geochemical Markers of Impacts and of Their Effects on Environments.- The Possible Influences of Sudden Events on Biological Radiations and Extinctions Group Report.- Changes in Sea Level.- Gradual and Abrupt Shifts in Ocean Chemistry During Phanerozoic Time.- Biological Innovations and the Sedimentary Record.- Late Precambrian and Early Cambrian Metazoa: Preservational or Real Extinctions?.- Short-term Changes Affecting Atmosphere, Oceans, and Sediments During the Phanerozoic Group Report.- Patterns and Geological Significance of Age Determinations in Continental Blocks.- The Archean/Proterozoic Transition: A Sedimentary and Paleobiological Perspective.- The Archean-Proterozoic Transition As a Geological Event - A View from Australian Evidence.- Events on a Time Scale of 107to 109Years Controlled by Tectonism or Volcanism.- Time and Space Scales of Mantle Convection.- Isotopic Evolution of the Crust and Mantle.- Degassing of the Earth.- Supracrustal Rocks, Polymetamorphism, and Evolution of the SW Greenland Archean Gneiss Complex.- Geothermal Gradients Through Time.- Variation in Tectonic Style with Time: Alpine and Archean Systems.- Variation in Tectonic Style with Time (Variscan and Proterozoic Systems).- The Long-term Evolution of the Crust and Mantle.- List of Participants.- Author Index.