CHAPTER 17: Biological and Geochemical Forcings to Phanerozoic Change in Seawater, Atmosphere, and Carbonate Precipitate Composition.

Chapter 17 of the book "Evolution of Primary Producers in the Sea," edited by Paul G. Falkowski and Andrew H. Knoll is presented. It examines the influence of the weathering fluxes of calcium, magnesium, carbon, sulfur and phosphorus to biogeochemical cycles in the ocean over the past 500 million years, using the Earth system model, dubbed MAGic (Mackenzie, Arvidson, Guidry interactive cycles). It discusses the age distribution in carbonate rocks relative to ocean-atmosphere evolution.