Geochemical Processes, Weathering and Groundwater Recharge in Catchments [Paperback]

Geochemical Processes, Weathering and Groundwater Recharge in Catchments is a specialist book concerned with the natural processes taking place where water interacts with minerals and organic matter at the earths surface, in soils or within aquifers. It focuses on the all important interface between the hydrological and geochemical cycles in terrestrial ecosystems, and is thus particularly relevant to understanding the environment. The book is intended primarily as a reference text for graduate students in Earth Sciences, Hydrology or Environmental Sciences, but will be a useful introduction to those studying Chemistry, Biology or Forestry Studies. Geochemical Processes, Weathering and Groundwater Recharge in Catchments presents an overview of the current status of knowledge of catchment studies, with an outline of the challenges of future research.

.PREFACE -- PARTI: CATCHMENT PROCESSES -- 1 WEATHERING PROCESSES James I. Drever -- 1.1 Definitions of weathering -- 1.2 Types of weathering reaction -- 1.2.1 Congruent dissolution -- 1.2.2 Incongruent dissolution -- 1.3 Cation exchange -- 1.4 Mineral dissolution kinetics -- 1.4.1 Relative rates -- 1.4.2 Effects of solution composition on dissolution rates of silicate minerals -- 1.5 Comparisons between field and laboratory dissolution rates -- 1.6 Modeling approaches -- 1.7 Future research directions References -- 2 COMPOSITION, PROPERTIES AND DEVELOPMENT OF NORDIC SOILS Ole K Borggaard -- 2.1 Introduction -- 2.2 Soil composition -- 2.2.1 Soil air -- 2.2.2 Soil water -- 2.2.3 Soil organic matter (SOM) -- 2.2.4 Soil minerals -- 2.3 Soil properties -- 2.3.1 Physical properties -- 2.3.2 Chemical properties -- 2.4 Soil development processes -- 2.4.1 Decalcification -- 2.4.2 Gleization -- 2.4.3 Lessivage (clay migration) -- 2.4.4 Podzolization -- 2.5 Summary with conclusions -- 2.6 Future research directions -- Appendix A: Definition, terminology, horizons and deslß