Explores soil as a nexus for water chemicals and biologically coupled nutrient cycling Soil is a narrow but critically important zone on Earths surface. It is the interface for water and carbon recycling from above and part of the cycling of sediment and rock from below. Hydrogeology Chemical Weathering and Soil Formation places chemical weathering and soil formation in its geological climatological biological and hydrological perspective. Volume highlights include The evolution of soils over 3.